CN1064111C

CN1064111C - Hinged rotary-piston engine

Info

Publication number: CN1064111C
Application number: CN97117221A
Authority: CN
Inventors: 张呈林
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-19
Filing date: 1997-08-19
Publication date: 2001-04-04
Anticipated expiration: 2017-08-19
Also published as: CN1208812A

Abstract

The present invention relates to a hinged rotary piston engine which is composed of a cylinder, a cylinder head, a hinged piston rotor and a crank shaft, wherein the hinged piston rotor is composed of four piston plates, two large connecting rods and two small connecting rods, and the every two of the four piston plates are respectively hinged by hinge shafts and then hinged with the outer end surfaces of the two large connecting rods to form a deformable and displaceable closed annular hinged rotor having two top ends. The inner ends of the two large connecting rods and the two small connecting rods are respectively sheathed on an inner planar lug boss of the cylinder head and an eccentric shaft of a crank shaft, and the outer ends of the large connecting rods and the small connecting rods positioned at the same side of the crank shaft are hinged by the hinge shafts. The present invention having the advantages of simple structure, small volume, large power and long service life well solves the problems of poor sealing performance and lubricating performance.

Description

Hinged rotary-piston engine

The present invention relates to a kind of hinged rotary-piston engine, belong to the rotary engine of internal-combustion engine class.

At present, the organization plan of various rotary engine has tens kinds more than, can be divided at the uniform velocity type, differential type, the rotary-type three major types of planet by operative configuration, these rotary engine are most can not be applied because existing some the congenital problem that can't overcome that is caused by structure, have only rotary engine tentatively to reach realistic scale, but gas leakage problem because of its sealing configuration, the lubrication problem of rotor slip surface, reasons such as power character difference and working life is short during low speed are restricted and it is applied.

The purpose of this invention is to provide a kind of simple and compact for structurely, be easy to make, volume is little, power is big, has solved sealing and lubrication problem preferably, the hinged rotary-piston engine of long service life.

The object of the present invention is achieved like this:

Single cylinder hinged rotary-piston engine of the present invention is made up of cylinder barrel, cylinder cap, piston, bent axle, connecting rod and inlet and outlet mouth, cylinder barrel is a cylindrical shape, left and right both sides at cylinder barrel are respectively equipped with air outlet and suction port, on the cylinder barrel at suction port and air outlet place, rotary valve is housed respectively, spark plug and oil nozzle is housed in the combustion chamber side of cylinder barrel; Inner plane central authorities at two cylinder caps are provided with the boss of being with eccentric opening, are provided with the counterweight chamber in the outside of two cylinder caps, and bent axle is contained in the eccentric opening of cylinder cap boss, and counterweight is equipped with at the two ends of bent axle; Piston is a hinged rotary-piston, hinged rotary-piston is by four piston plates, two big connecting rods and two small rods are formed, the both sides, outer end that four piston plates are hinged on two big connecting rods by hinging shaft by hinging shaft after hinged respectively in twos again form a closed annular hinge rotor with the deformable and the displacement on two tops, the inner of two big connecting rods is enclosed within on the inner plane boss of cylinder cap, the inner of two small rods is enclosed within on the eccentric shaft of bent axle, being in the big connecting rod of bent axle the same side and the outer end of a small rod uses hinging shaft hinged, the outer end face of two big connecting rods is an arc surface, be provided with seal groove thereon, Stamping Steel Ribbon is housed in seal groove, on two side planes of piston plate, be provided with seal groove, Stamping Steel Ribbon is housed in seal groove, hinged place at piston plate, Stamping Steel Ribbon on two piston plates is with axle, arc form movingly is connected, and the Stamping Steel Ribbon on the Stamping Steel Ribbon on the outer end face of big connecting rod and the piston plate bi-side is connected piece by a Stamping Steel Ribbon that is positioned at the receptacle-shaped on the outer end side surface of big connecting rod and is connected

Twin-tub hinged rotary-piston engine of the present invention is by cylinder barrel, cylinder cap, hinged rotary-piston, bent axle, connecting rod, spark plug, firing chamber and advancing, relief opening is formed, cylinder barrel is a cylindrical shape, cylinder barrel is made up of air cylinder Y and work-doing cylinder Z, two cylinders are fixedly connected by the cylinder dividing plate, the bent axle of two cylinders is embedded as a whole, on air cylinder Y, be provided with suction port, on the extrusion mouth of air cylinder Y, check valve is housed, on work-doing cylinder Z, be provided with the air outlet, combustion chamber side at work-doing cylinder Z is equipped with spark plug, automatic scavenging is housed on the gas distribution channel between two cylinders gives burner, automatically scavenging is given automatic scavenging valve is housed in the burner, the right-hand member that burner is given in automatic scavenging communicates with air cylinder Y, and this end face is equipped with oil nozzle, and the left end that burner is given in automatic scavenging communicates with the firing chamber of work-doing cylinder Z; Inner plane central authorities and cylinder dividing plate bi-side central authorities at left and right cylinder cap are provided with the boss of being with eccentric opening, are provided with the counterweight chamber in the outside of left and right two cylinder caps, and bent axle is contained in the eccentric opening of cylinder cap boss and cylinder dividing plate boss, and counterweight is equipped with at the two ends of bent axle; Piston is a hinged rotary-piston, the hinged rotary-piston that is positioned at air cylinder Y and work-doing cylinder Z is by four piston plates, two big connecting rods and two small rods are formed, the both sides, outer end that four piston plates are hinged on two big connecting rods by hinging shaft by hinging shaft after hinged respectively in twos again form a closed annular hinge rotor with the deformable and the displacement on two tops, the inner of two big connecting rods is enclosed within on the inner plane boss of cylinder cap, the inner of two small rods is enclosed within on the eccentric shaft of bent axle, being in the big connecting rod of bent axle the same side and the outer end of a small rod uses hinging shaft hinged, the outer end face of two big connecting rods is an arc surface, be provided with seal groove thereon, Stamping Steel Ribbon is housed in seal groove, on two side planes of piston plate, be provided with seal groove, Stamping Steel Ribbon is housed in seal groove, hinged place at piston plate, Stamping Steel Ribbon on two piston plates is with axle, arc form movingly is connected, and the Stamping Steel Ribbon on the Stamping Steel Ribbon on the outer end face of big connecting rod and the piston plate bi-side is connected piece by a Stamping Steel Ribbon that is positioned at the receptacle-shaped on the outer end side surface of big connecting rod and is connected.

Working method of the present invention is as follows:

Rotary piston has been equivalent to contain the effect of reciprocating piston and connecting rod, promptly directly gas pressure suffered on the piston plate is become rotatablely moving of axle, piston is in cylinder barrel, its two top and cylinder barrel sealing, its bi-side and the sealing of forward and backward cylinder cap, make constituted in the cylinder barrel left and right two arc tabular and in company with the active chamber of piston rotation, when an active chamber is subjected to gas explosive force and when expanding volume, another active chamber is then finished compression stroke dwindling volume.The variation of working chamber volume is to produce eccentric moment when being subjected to gas pressure owing to piston body to form torque piston is rotated, in rotation also because the effect of throw of eccentric makes Hinged piston do radially displacement, thereby realize the variation of two working chamber volumes.The radial displacement of Hinged piston is determining the compression ratio of active chamber, and radial displacement is formed by two throw of eccentric: one is the throw of eccentric (center, hole, crank spindle footpath is with respect to the throw of eccentric in the cylinder cap boss center of circle) of crankshaft hole on the cylinder cap boss, another is the throw of eccentric (throw of eccentric at crank spindle center, footpath and eccentric diameter of axle center) of bent axle itself, because these two throw of eccentric equate, when crankshaft rotating, the rotary motion trace circular arc of its eccentric diameter of axle central point, the centre point of each circle by cylinder barrel once, two small rods on the eccentric shaft are turned left at each, wave once on the right side, thereby make transport motion piston plate each transfer to radially a left side, right displacement once forms the alternate of two working chamber volumes.Force transmission between piston plate and the bent axle is reversible, finishes expansion space stroke so both can drive bent axle by piston plate (after being subjected to gaseous-pressure), also can finish auxiliary stroke by bent axle (after being subjected to driving force) driven plunger plate.

Below in conjunction with drawings and Examples the present invention is further described:

Fig. 1 is the structural representation of single cylinder four-journey machine of the present invention.

Fig. 2 is the E-B sectional view of Fig. 1.

Structural representation when Fig. 3 is positioned at the vertical position for the large and small connecting rod of the rotor of single cylinder four-journey machine.

Fig. 4 is the C-C sectional view of Fig. 3.

Fig. 5 is the rotary air valve structural representation.

Fig. 6 (1)-6 (16) is the working principle schematic representation of single cylinder four-journey machine.

Fig. 7 (1), Fig. 7 (2) are the structural representation of twin-tub four-journey machine of the present invention.

Fig. 8 is E1-E2, the F1-F2 sectional view of Fig. 7 (1).

Fig. 9 is the plan view of twin-tub four-journey machine.

Figure 10 is B1-B2, the A1-A2 sectional view of Fig. 7 (2).

Figure 11 is C1-C2, the D1-D2 sectional view of Fig. 7 (2).

Figure 12 is the structural representation of automatic scavenging valve.

Figure 13 (1)-13 (8) is the working principle schematic representation of twin-tub four-journey machine.

By the embodiment 1 of Fig. 1-shown in Figure 4 as can be known, it is a single cylinder hinged rotary-piston engine, it is made up of cylinder barrel 1, cylinder cap 18, hinged rotary-piston, bent axle 10, connecting rod and inlet and outlet mouth, cylinder barrel 1 is a cylindrical shape, be respectively equipped with air outlet 15 and suction port 14 on the left and right both sides of cylinder barrel, on the cylinder barrel at

suction port

14 and 15 places, air outlet, rotary valve is housed respectively, spark plug 5 and oil nozzle 6 is housed in the combustion chamber side of cylinder barrel; Inner plane central authorities at two cylinder caps 18 are provided with the boss 20 of being with eccentric opening, are provided with counterweight chamber 17 in the outside of two cylinder caps, and bent axle 10 is contained in the eccentric opening of cylinder cap boss, and counterweight 21 is equipped with at the two ends of bent axle 10; Hinged rotary-piston is by four piston plates 3, two big connecting rods 8 and two small rods 9 are formed, the both sides, outer end that four piston plates 3 are hinged on two big connecting rods 8 by hinging shaft 7 by hinging shaft after hinged respectively in twos again form a closed annular hinge rotor with the deformable and the displacement on two tops, the inner of two big connecting rods 8 is enclosed within on the inner plane boss of cylinder cap, the inner of two small rods 9 is enclosed within on the eccentric shaft of bent axle 10, being in the big connecting rod 8 of bent axle 10 the same sides and the outer end of a small rod 9 uses hinging shaft 16 hinged, the outer end face of two big connecting rods 8 is an arc surface, be provided with seal groove thereon, Stamping Steel Ribbon 13 is housed in seal groove, on two side planes of piston plate, be provided with seal groove, Stamping Steel Ribbon 11 is housed in seal groove, hinged place at piston plate, Stamping Steel Ribbon 11 on two piston plates is with axle, arc form movingly is connected, and the Stamping Steel Ribbon 13 on the big connecting rod 8 outer end faces is connected piece 12 linkings with Stamping Steel Ribbon 11 on the piston plate bi-side by a Stamping Steel Ribbon that is positioned at the receptacle-shaped on the big connecting rod 8 outer end side surface.

The rotary air valve that is installed on the cylinder barrel at

suction port

14 and 15 places, air outlet is made up of the valve seat and the rotary valve 22 that are positioned on the cylinder barrel 1, rotary valve 22 is discoideus, have valve opening on it, the central authorities of discoideus rotary valve 22 are provided with rotating shaft, one end of rotating shaft is equipped with gear, is driven by the timing gear group by bent axle.

The Stamping Steel Ribbon 13 that is positioned on two big connecting rods, the 8 outer end faces is 2-4, and the cross section of Stamping Steel Ribbon 13 is trapezoidal, and the outer nose circle of Stamping Steel Ribbon 13 is arc surface, is provided with the waved spring sheet in the seal groove at Stamping Steel Ribbon 13 places.

Stamping Steel Ribbon 11 on piston plate 3 bi-side is the circular arc bar shaped, and its cross section is " recessed " font, is provided with spring in the seal groove at Stamping Steel Ribbon 11 places.

On the barrel of cylinder barrel 1, be provided with cylinder barrel water jacket 2, in cylinder cap, be provided with the cylinder cap water jacket.

By the embodiment 2 of Fig. 7-shown in Figure 11 as can be known, it is a twin-tub hinged rotary-piston engine, it is by cylinder barrel 1, cylinder cap 18, hinged rotary-piston, bent axle 10, connecting rod, spark plug, firing chamber and advancing, relief opening is formed, cylinder barrel 1 is a cylindrical shape, cylinder barrel 1 is made up of air cylinder Y and work-doing cylinder Z, two cylinders are fixedly connected by cylinder dividing plate 28, the bent axle of two cylinders is embedded as a whole, on air cylinder Y, be provided with suction port 14, on the extrusion mouth of air cylinder Y, check valve 23 is housed, on work-doing cylinder Z, be provided with air outlet 15, combustion chamber side at work-doing cylinder Z is equipped with spark plug 5, automatic scavenging is housed on the gas distribution channel between two cylinders gives burner 31, automatically scavenging is given automatic scavenging valve 25 is housed in the burner 31, the right-hand member that burner 31 is given in automatic scavenging communicates with air cylinder Y, and this end face is equipped with oil nozzle 6, and the left end that burner 31 is given in automatic scavenging communicates with the firing chamber 4 of work-doing cylinder Z; Inner plane central authorities and cylinder dividing plate 28 bi-side central authorities at left and right cylinder cap 18 are provided with the boss 20 of being with eccentric opening, be provided with counterweight chamber 17 in the outside of left and right two cylinder caps, bent axle 10 is contained in the eccentric opening of cylinder cap boss and cylinder dividing plate boss, and counterweight 21 is equipped with at the two ends of bent axle 10; The hinged rotary-piston that is positioned at air cylinder Y and work-doing cylinder Z is by four piston plates 3, two big connecting rods 8 and two small rods 9 are formed, the both sides, outer end that four piston plates 3 are hinged on two big connecting rods 8 by hinging shaft 7 by hinging shaft after hinged respectively in twos again form a closed annular hinge rotor with the deformable and the displacement on two tops, the inner of two big connecting rods 8 is enclosed within on the inner plane boss of cylinder cap, the inner of two small rods 9 is enclosed within on the eccentric shaft of bent axle 10, being in the big connecting rod 8 of bent axle 10 the same sides and the outer end of a small rod 9 uses hinging shaft 16 hinged, the outer end face of two big connecting rods 8 is an arc surface, be provided with seal groove thereon, Stamping Steel Ribbon 13 is housed in seal groove, on two side planes of piston plate, be provided with seal groove, Stamping Steel Ribbon 11 is housed in seal groove, hinged place at piston plate, Stamping Steel Ribbon 11 on two piston plates is with axle, arc form movingly is connected, and the Stamping Steel Ribbon 13 on the big connecting rod 8 outer end faces is connected piece 12 linkings with Stamping Steel Ribbon 11 on the piston plate bi-side by a Stamping Steel Ribbon that is positioned at the receptacle-shaped on the big connecting rod 8 outer end side surface.

Automatically scavenging is given burner 31 for cylindric, oil nozzle 6 is equipped with in its right side, give in automatic scavenging the automatic scavenging valve 25 that can be free to slide is housed in the burner 31, automatic scavenging valve 25 gives burner 31 with automatic scavenging and is divided into two chambers, promptly give combustion chamber 24 and mixing chamber 26, automatic scavenging valve 25 is the unidirectional guide valve of a butterfly-valve.

On the barrel of cylinder barrel 1, be provided with cylinder barrel water jacket 2; On cylinder dividing plate 28, be provided with dividing plate water jacket 29.

Working principle of the present invention is as follows:

Single cylinder engine is finished suction, pressure, quick-fried, four working strokes of row respectively in two active chambers of a cylinder barrel, in each commentaries on classics of bent axle half-turn being arranged is expansion space stroke.

The working principle of single cylinder engine is seen shown in Fig. 6 (1)-6 (16).

On fundamental diagram, indicate the working procedure that combustion gas has shown four strokes of an active chamber with small circle.Be the example narration now with the A chamber.First half-turn of piston rotary from Fig. 6 (1)-6 (5), is air-breathing, the inlet open in A chamber, (compression of B chamber, exhaust valve close).Second half-turn from Fig. 6 (5)-6 (9), is the compression of A chamber, exhaust valve close (outburst of B chamber, intake valve close).The 3rd half-turn from Fig. 6 (9)-(13), is the outburst of A chamber, intake valve close (exhaust of B chamber, exhaust valve open).The 4th half-turn is the exhaust of A chamber from Fig. 6 (13)-6 (16)-6 (1), exhaust valve open (air-breathing, the inlet open in B chamber).So far, piston has changeed two whole circles, and each active chamber has respectively been finished a four-journey work cycle.The 5th half-turn then is the process that repeats aforesaid first half-turn.So circulation is gone down.

Two cylinder barrels of twin-tub machine are that four working strokes are finished in the division of labor, and air cylinder Y finishes air-breathing and compression stroke, hockets at two active chambers of its A, B; Work-doing cylinder Z finishes outburst and exhaust stroke, hockets at two active chambers of its C, D.In each commentaries on classics of bent axle two half-turns being arranged is expansion space strokes, and promptly expansion space stroke carries out in each changes continuously.The communication channel of two cylinders is to give the combustion chamber, and pressurized air is mixed into mixed gas with fuel oil here, enters the firing chamber by automatic scavenging valve.Give that the unidirectional isolation and the gas exchange process of combustion gas and unreacted fuel gas are finished by automatic scavenging valve 25 in the combustion chamber.

The working principle of twin-tub machine is seen shown in Figure 13, the work of air cylinder Y signal be from Figure 13 1.-8., the work of work-doing cylinder Z illustrate from Figure 13 (1)-(8), the scavenging work of giving burner is illustrated also in Figure 13 automatically.Now, narrate the working procedure of twin-tub rotary piston machine from the A chamber of air cylinder Y.From Figure 13 1.-5. be the suction stroke in A chamber, its piston rotary turns over-individual half-turn.From Figure 13 5.-8.-1. be the compression stroke in A chamber, its piston rotary turns over second half-turn (promptly finished inhaled pressure process corotation one whole circle).

In the compression process of A chamber, the check valve that extrudes mouth is pushed open by air pressure, pressurized air enters the mixing chamber 26 that burner 31 is given in automatic scavenging, at this moment oil nozzle oil spout, the pressurized air of fuel oil and rotation is mixed into combustible gas, the scavenging air valve that air pressure promotes closing is to terminal, see Figure 13 (5), the guiding valve 32 on the automatic scavenging valve body 33 is backed down by terminal boss endways, sees Figure 13 (6), mixed gas just enters and gives combustion chamber and firing chamber, at this moment plug ignition, the combustion gas outburst, the automatic scavenging valve that gaseous-pressure promotes opening moves to top, the combustible gas of mixing chamber all put into give combustion chamber (to top time, its boss is answered back to guiding valve 32 closes scavenging air valve).Combustion gas simultaneously charges into expansion working in the D chamber of work-doing cylinder Z, sees Figure 13 (6)-(8).Gaseous-pressure promotes its piston rotary and turns over a half-turn, and next half-turn is from Figure 13 (1)-(5), then is D chamber exhaust stroke (promptly finished quick-fried, row's process corotation one whole circle).

So far, the piston rotary of two cylinders has respectively changeed a whole circle, unites and has finished a four-journey work cycle, because two cylinders of Y, Z respectively have two chambeies, two work cycle are promptly finished in each commentaries on classics of bent axle.Next circle that bent axle turns over then is the working procedure that repeats an above-mentioned circle, promptly from Figure 13 (1)-(8) again to the Infinite Cyclic of (1).

The structure of automatic scavenging valve is seen Figure 12, and it is made up of valve body 33 and guiding valve 32, guiding valve 32 be riveting together, valve body 33 is enclosed within on guiding valve 32 jack shafts, valve body 33 can do relative motion with respect to guiding valve 32.

In Fig. 8,27 is air-cooled blade; In Fig. 1,7,30 is fixed base; In Fig. 1,6,7, S is a top dead center.

Lubricating system of the present invention is as follows:

Adopt oil pump force feed machine oil to arrive the lubricant housings by the road.The main oil gallery of oil circulation is: an oil pump → side cylinder cap boss → this side big connecting rod axle sleeve → this side big connecting rod inner duct → this side big connecting rod outer circumference end → piston tip → opposite side big connecting rod outer circumference end → opposite side big connecting rod inner duct → opposite side big connecting rod axle sleeve → opposite side cylinder cap boss → get back to oil sump.At big connecting rod outer circumference end and cylinder cover wall applying position, have oilhole to side cylinder cover wall coating machine oil.At piston tip (being the big connecting rod top) and cylinder barrel inner headed face applying position, have oilhole to cylinder barrel wall coating machine oil.Main oil gallery middle part from piston tip also has a branch road that leads to hinge point, to the articulated section of piston tip and piston plate and the articulated section coating machine oil of two-piston plate, hinging shaft is lubricated respectively.

Another of oil circulation oil duct is: machine oil is from cylinder cap boss → bent axle endoporus → small rod axle sleeve → bent axle the other end → opposite side cylinder cap boss → get back to oil sump.It is lubricated bent axle and small rod axle sleeve.

What leak in the intermediate cavity for annular piston is oily gentle, can be inhaled in the active chamber when the cylinder working chamber suction stroke by the unidirectional disappointing valve opening of big connecting rod top one side, and it is burnt when the outburst stroke.

Advantage of the present invention be simple and compact for structure, be easy to make, volume is little, power greatly, solve preferably Sealing and lubrication problem, long service life.

Claims

1, a kind of single cylinder hinged rotary-piston engine, it is made up of cylinder barrel (1), cylinder cap (18), piston, bent axle (10), connecting rod and inlet and outlet mouth, it is characterized in that cylinder barrel (1) is cylindrical shape, be respectively equipped with air outlet (15) and suction port (14) on the left and right both sides of cylinder barrel, on the cylinder barrel of locating in suction port (14) and air outlet (15) rotary valve is housed respectively, spark plug (5) and oil nozzle (6) is housed in the combustion chamber side of cylinder barrel; Inner plane central authorities at two cylinder caps (18) are provided with the boss (20) of being with eccentric opening, are provided with counterweight chamber (17) in the outside of two cylinder caps, and bent axle (10) is contained in the eccentric opening of cylinder cap boss, and counterweight (21) is equipped with at the two ends of bent axle (10); Piston is a hinged rotary-piston, hinged rotary-piston is by four piston plates (3), two big connecting rods (8) and two small rods (9) are formed, the both sides, outer end that four piston plates (3) are hinged on two big connecting rods (8) by hinging shaft (7) by hinging shaft after hinged respectively in twos again form a closed hoop hinge rotor with the deformable and the displacement on two tops, the inner of two big connecting rods (8) is enclosed within on the inner plane boss of cylinder cap, the inner of two small rods (9) is enclosed within on the eccentric shaft of bent axle (10), being in the big connecting rod (8) of bent axle (10) the same side and the outer end of a small rod (9) uses hinging shaft (16) hinged, the outer end face of two big connecting rods (8) is an arc surface, be provided with seal groove thereon, Stamping Steel Ribbon (13) is housed in seal groove, on two side planes of piston plate, be provided with seal groove, Stamping Steel Ribbon (11) is housed in seal groove, hinged place at piston plate, Stamping Steel Ribbon (11) on two piston plates is with axle, arc form movingly is connected, and the Stamping Steel Ribbon (13) on the outer end face of big connecting rod (8) is connected piece (12) linking with Stamping Steel Ribbon (11) on the piston plate bi-side by a Stamping Steel Ribbon that is positioned at the receptacle-shaped on the outer end side surface of big connecting rod (8).

2, motor according to claim 1, the rotary air valve that it is characterized in that being installed on the cylinder barrel of locating in suction port (14) and air outlet (15) is made up of the valve seat and the rotary valve (22) that are positioned on the cylinder barrel (1), rotary valve (22) is discoideus, have valve opening on it, the central authorities of discoideus rotary valve (22) are provided with rotating shaft, one end of rotating shaft is equipped with gear, is driven by the timing gear group by bent axle.

3, motor according to claim 2, the Stamping Steel Ribbon (13) that it is characterized in that being positioned on the outer end face of two big connecting rods (8) is 2-4, the cross section of Stamping Steel Ribbon (13) is trapezoidal, the outer nose circle of Stamping Steel Ribbon (13) is arc surface, is provided with the waved spring sheet in the seal groove at Stamping Steel Ribbon (13) place.

4, motor according to claim 3 is characterized in that the Stamping Steel Ribbon (11) on piston plate (3) bi-side is the circular arc bar shaped, and its cross section is " recessed " font, is provided with spring in the seal groove at Stamping Steel Ribbon (11) place.

5, motor according to claim 4 is characterized in that being provided with cylinder barrel water jacket (2) on the barrel of cylinder barrel (1), is provided with the cylinder cap water jacket in cylinder cap.

6, a kind of twin-tub hinged rotary-piston engine, it is by cylinder barrel (1), cylinder cap (18), piston, bent axle (10), connecting rod, spark plug, firing chamber and advancing, relief opening is formed, it is characterized in that cylinder barrel (1) is cylindrical shape, cylinder barrel (1) is made up of air cylinder Y and work-doing cylinder Z, two cylinders are fixedly connected by cylinder dividing plate (28), the bent axle of two cylinders is embedded as a whole, on air cylinder Y, be provided with suction port (14), check valve (23) is housed on the extrusion mouth of air cylinder Y, on work-doing cylinder Z, be provided with air outlet (15), combustion chamber side at work-doing cylinder Z is equipped with spark plug (5), automatic scavenging is housed on the gas distribution channel between two cylinders gives burner (31), automatically scavenging is given automatic scavenging valve (25) is housed in the burner (31), the right-hand member that burner (31) is given in automatic scavenging communicates with air cylinder Y, this end face is equipped with oil nozzle (6), and the left end that burner (31) is given in automatic scavenging communicates with the firing chamber (4) of work-doing cylinder Z; Inner plane central authorities and cylinder dividing plate (28) bi-side central authorities at left and right cylinder cap (18) are provided with the boss (20) of being with eccentric opening, be provided with counterweight chamber (17) in the outside of left and right two cylinder caps, bent axle (10) is contained in the eccentric opening of cylinder cap boss and cylinder dividing plate boss, and counterweight (21) is equipped with at the two ends of bent axle (10); Piston is a hinged rotary-piston, the hinged rotary-piston that is positioned at air cylinder Y and work-doing cylinder Z is by four piston plates (3), two big connecting rods (8) and two small rods (9) are formed, the both sides, outer end that four piston plates (3) are hinged on two big connecting rods (8) by hinging shaft (7) by hinging shaft after hinged respectively in twos again form a closed annular hinge rotor with the deformable and the displacement on two tops, the inner of two big connecting rods (8) is enclosed within on the inner plane boss of cylinder cap, the inner of two small rods (9) is enclosed within on the eccentric shaft of bent axle (10), being in the big connecting rod (8) of bent axle (10) the same side and the outer end of a small rod (9) uses hinging shaft (16) hinged, the outer end face of two big connecting rods (8) is an arc surface, be provided with seal groove thereon, Stamping Steel Ribbon (13) is housed in seal groove, on two side planes of piston plate, be provided with seal groove, Stamping Steel Ribbon (11) is housed in seal groove, hinged place at piston plate, Stamping Steel Ribbon (11) on two piston plates is with axle, arc form movingly is connected, and the Stamping Steel Ribbon (13) on the outer end face of big connecting rod (8) is connected piece (12) linking with Stamping Steel Ribbon (11) on the piston plate bi-side by a Stamping Steel Ribbon that is positioned at the receptacle-shaped on the outer end side surface of big connecting rod (8).

7, motor according to claim 6, it is characterized in that it is cylindric that burner (31) is given in automatic scavenging, oil nozzle (6) is equipped with in its right side, give in automatic scavenging the automatic scavenging valve (25) that can be free to slide is housed in the burner (31), automatic scavenging valve (25) gives burner (31) with automatic scavenging and is divided into two chambers, promptly give combustion chamber (24) and mixing chamber (26), automatic scavenging valve (25) is the unidirectional guide valve of a butterfly-valve.

8, motor according to claim 7, the Stamping Steel Ribbon (13) that it is characterized in that being positioned on the outer end face of two big connecting rods (8) is 2-4, the cross section of Stamping Steel Ribbon (13) is trapezoidal, the outer nose circle of Stamping Steel Ribbon (13) is arc surface, is provided with the waved spring sheet in the seal groove at Stamping Steel Ribbon (13) place.

9, motor according to claim 8 is characterized in that the Stamping Steel Ribbon (11) on piston plate (3) bi-side is the circular arc bar shaped, and its cross section is " recessed " font, is provided with spring in the seal groove at Stamping Steel Ribbon (11) place.

10, motor according to claim 9 is characterized in that being provided with cylinder barrel water jacket (2) on the barrel of cylinder barrel (1); On cylinder dividing plate (28), be provided with dividing plate water jacket (29).