CN201080838Y - Outboard engine powered by four stroke general purpose petrol engine - Google Patents
Outboard engine powered by four stroke general purpose petrol engine Download PDFInfo
- Publication number
- CN201080838Y CN201080838Y CNU2007200284494U CN200720028449U CN201080838Y CN 201080838 Y CN201080838 Y CN 201080838Y CN U2007200284494 U CNU2007200284494 U CN U2007200284494U CN 200720028449 U CN200720028449 U CN 200720028449U CN 201080838 Y CN201080838 Y CN 201080838Y
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- Prior art keywords
- assembly
- stroke
- propeller
- gasoline engine
- oil pump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 description 36
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- 239000007789 gas Substances 0.000 description 10
- 238000009826 distribution Methods 0.000 description 8
- 238000010304 firing Methods 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 6
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- 239000000314 lubricant Substances 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
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Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to an outboard engine using four-stroke common gasoline engine as motivity, which comprises a cylinder head assembly, a lower crankcase cover, a crankshaft assembly, a piston assembly, a lower crankcase body, an upper crankcase body, an upper crankcase cover, an upper protective cover, a lower protective cover, a clutch case, a driving shaft case, a propeller, a propeller driving shaft, and a propeller driving case. As a set of compulsory lubrication circulation system assembly is added in the lower crankcase cover, fuel consumption and emission pollution are reduced obviously and the noise is lowered, and the gasoline engine is lubricated sufficiently, so that service life is improved obviously.
Description
Affiliated technical field:
The utility model relates generally to the outboard machine that a kind of reciprocating piston Spark ignition type petrol engine is done power, relates in particular to a kind of outboard machine of making power of four-stroke universal gasoline engine.
Background technique
The outboard machine of prior art products is all done power with two-stroke gasoline engine.The outboard machine of making power of two-stroke gasoline engine is being feasible aspect design theory and the technology implementation.This outboard machine is combined by two-stroke gasoline engine and drive propulsion system.Two stroke principle is meant that air inlet, compression, outburst, four strokes of exhaust are to be goed around by crank assemblby to finish.Two-stroke gasoline engine is made up of cylinder cover complement, cylinder block assembly, piston assembly, crank assemblby, connecting rod ASSY, crankcase assembly, ignition system.Cylinder head assembly is made up of hemispheric firing chamber and spark plug.The cylinder block assembly is made up of cylinder block, has 3-6 shape, gas port not of uniform size in the middle of the cylinder block endoporus on the Zhou Fangxiang of garden, is used as air inlet, scavenging and the exhaust of petrol engine.Piston assembly is by piston, piston ring, and wrist pin is formed.The piston of two-stroke gasoline engine is longer, because will in cylinder block, block the effect of playing control switch with piston to gas port, piston ring is made up of the twice compression ring, be used to prevent the leakage of mixed gas and combustion gas, crank assemblby is by a left side, right crankshaft, crank pin, crankshaft bearing is formed, connecting rod ASSY is by connecting rod, connecting rod macropore needle bearing and connecting rod aperture needle bearing are formed, crankcase assembly is by a left side, right crankcase, a left side, right crankcase cover is formed, two-stroke gasoline engine can be installed and used at arbitrary orientation because of not lubricated circulation canal, and the ignition system assembly is by magnetogenerator, spark plug, ignition and high-voltage ignition coil are formed.Drive propulsion system is made up of clutch, transmission shaft, propeller shaft, propeller, the large and small umbrella gear of propeller transmission.Clutch device is in clutch housing; the centrifugal force that produces when relying on the petrol engine running throws away with clutch housing clutch plate and fits tightly rotation together; the upper end of transmission shaft relies on spline to be connected with the internal spline of clutch housing bottom; a bevel pinion is equipped with in the lower end of transmission shaft; be meshed with the large bevel gear on being contained in the propeller transmission shaft; on the one hand the vertical rotation of transmission shaft is become and horizontally rotate; decelerate reaches the effect that increases moment of torsion on the other hand; make the propeller rotation promote ship's navigation, at petrol engine and transmission shaft; all there is guard shield the clutch housing outside; protective case protection petrol engine and drive propulsion system.Though prior art products has simple structure with the two-stroke gasoline engine of doing power, volume is little, in light weight, power per liter is big, can characteristics such as install and use at arbitrary orientation, but owing to rely on piston control air inlet, scavenging and steam discharge to cause control accuracy poor, more not clean-burning mixed gas is discharged together with waste gas, it is serious to cause fuel consumption to reach exhaust emission greatly, exhaust noise is big, the lubricating system of lubricant oil and combustion oil blending, cause many component lubricated insufficient, lubricated shape condition is abominable, petrol engine shortening in working life.
Summary of the invention
Big for overcoming the two-stroke gasoline engine fuel consumption that is used as power in the prior art products product, exhaust emission is serious, lubrication state is abominable, petrol engine short deficiency in working life, the utility model provides a kind of and does the outboard machine of power with four-stroke universal gasoline engine, can solve the problem and shortage in the prior art products preferably.
The technological scheme that its technical problem that solves the utility model adopts is: with doing power through the four-stroke universal gasoline engine that improves design, drive propulsion system still adopt in the prior art products part both combine and form.Four-stroke universal gasoline engine commonly used all is the horizontal kind of drive of employing level, and the four-stroke universal gasoline engine of doing outboard machine power must adopt the vertical vertical kind of drive, because the difference of four-stroke and two-stroke gasoline engine maximum is except being air inlet, compression, outburst, four stroke two-strokes of exhaust machine is that crank assemblby is goed around and finished, four-stroke machine is outside crank assemblby commentaries on classics two commentaries on classics are finished, also having two big systems is that the two-stroke machine is unexistent, the one, the gas distribution system that four-stroke machine adopts, another is to force or optional lubricating circulatory system, four-stroke gasoline engine requires high to lubricating condition, because the lubricating condition of the horizontal kind of drive of level does not meet the lubricating condition of the vertical vertical kind of drive, the utility model has increased by a cover pressure lubrication circulatory system according to vertical vertical mode transport characteristics design again in the lubrication system that keeps the horizontal kind of drive of former level for this reason.Include cylinder cover complement through the four-stroke universal gasoline engine that is used as outboard machine power that improves design, the distribution device assembly, the cylinder block assembly, piston assembly, crank assemblby, crankcase assembly, the ignition system assembly, pressure lubrication circulatory system assembly is formed, cylinder cover complement is by cylinder head, cylinder head cover, spark plug, the firing chamber is formed, design has intake duct on cylinder head, two air flues of air outlet flue, be respectively applied for the discharge with waste gas of entering of mixed gas, the one end design of air flue is in the firing chamber, the other end design is in the both sides of cylinder head, article two, in the air flue valve guide bushing is housed respectively, be used for location and guiding when valve pumped, the shape of valve resembles a mushroom, the front is a head greatly, the back is not only thin but also long valve stem, air valve seat ring is housed in the intake and exhaust road junction in the firing chamber relies on fitting tightly of air valve seat ring and valve, guarantee that gas does not leak.Because intake valve, the head of exhaust valve has occupied most of area of firing chamber, spark plug can only be installed in a side of firing chamber, the distribution device assembly is by distribution cam axle, intake valve, exhaust valve, valve rocker, valve spring; pitman arm shaft is formed; distribution cam axle is installed in cylinder cover complement inside; design has intake cam and exhaust cam on distribution cam axle; control the opening and closing of intake valve and exhaust valve respectively; the shape of cam resembles a peach; the highest position of projection is the peach point, and unpolarized position is generating circle, and the height difference of generating circle and peach point is valve lift; pitman arm shaft passes from the valve rocker centre, makes valve rocker become a lever.Valve rocker one end is pressed on the outer surface of cam, one end is pressed on the valve stem, valve spring is enclosed within the outside of valve stem, when joining the vapour cam rotation, the peach point will be pressed in the valve rocker one end jack-up of cam outer face, because leverage, the other end of valve rocker is depressed an end of valve stem, the valve head leaves air valve seat ring and makes valve opening, along with joining being rotated further of vapour camshaft, the generating circle position falls valve rocker, closes because of leverage makes the valve rising fit tightly with air valve seat ring.Using the profile of the valve cam of valve rocker is left and right asymmetric shape, the position, peach tip that is cam does not coincide with the center line of cam generating circle, and this asymmetric cam design is will produce different separately side-play amounts for the point of contact that adapts to rocking arm two ends when using valve rocker.One end of joining the vapour camshaft is equipped with timing transmission hinge wheel, at an end of crank assemblby timing transmission minor sprocket is installed, and relies on the timing drive chain to connect transmission.Just a lot of one times of the number of teeth of the gear ratio timing drive sprocket of timing transmission hinge wheel makes bent wheel assembly change two commentaries on classics distribution cam axles and goes around, thereby guarantees the normal operation of four-stroke gasoline engine.The cylinder block assembly is made up of by the hole the cylinder block and the institution of distributing gas, and the cylinder block endoporus of four-stroke gasoline engine is one smooth simplified, and the institution of distributing gas is used for the timing drive chain and therefrom passes through by the rectangular passage of Kong Weiyi.Piston assembly is made up of piston, piston ring, wrist pin.The piston length of four-stroke gasoline engine is very short, and piston ring has three roads, and a twice is compression rings, is used to prevent gas leakage, is installed in two annular grooves of piston head size.The 3rd road is an oil ring, is used for preventing that lubricant oil from entering in the piston head cylinder cover chamber and combustion gas blending burning produces carbon deposit damage component and causes exhaust emission to be installed in the 3rd annular groove of piston.Crank assemblby is divided into two kinds, a kind of is split type crank assemblby, a kind of is the integral one-piece crankshaft assembly, split type crank assemblby is by a left side, right crankshaft, crank pin, crankshaft bearing is formed, the integral one-piece crankshaft assembly is made up of integral one-piece crankshaft and crankshaft bearing, connecting rod ASSY also divides two kinds, a kind of is split type connecting rod ASSY, a kind of is the integrated type connecting rod ASSY, and split type connecting rod ASSY is by split type connecting rod, connecting rod macropore bearing shell, connecting rod fixed installation screw is formed, the monolithic linkage assembly is by the integrated type connecting rod, and connecting rod macropore needle bearing is formed, and split type crank assemblby is joined the integrated type connecting rod ASSY, the integral one-piece crankshaft assembly is joined split type connecting rod ASSY, and two kinds of crankshaft rod assemblies all have application in four-stroke universal gasoline engine.Crankcase assembly is by left and right crankcases, and left and right crankcase cover is formed, owing to change the vertical vertical kind of drive into, crankcase assembly also renames as upper and lower crankcase body, upper and lower crankcase cover.The ignition system assembly is made up of magnetogenerator, ignition, spark plug, high-voltage ignition coil.The pressure lubrication circulatory system is made up of oil pump, oil pump transmission device, machine oil filtrating equipment, oil storage, pressure lubrication circulation canal.Oil pump has two kinds, a kind of is gear type oil pump, a kind of is rotor-type oil pump, gear type oil pump is by a pump housing, the gear of two end caps and a pair of identical number of teeth is formed, have simple in structure in light weight, characteristics such as reliable operation, rotor-type oil pump is by inside and outside two rotors, the pump housing and a pump cover, and a transmission shaft is formed, the equidirectional rotation of inside and outside rotor, number of inner teeth is lacked a tooth than external rotor, and internal rotor generally adopts 4,6,7 numbers of teeth, is off-centre with external rotor and is installed in the pump housing.It is little to have volume, and fuel delivery is big, and noise is low, long service life, and characteristics such as consumed power is low, and it is steady to turn round, two kinds of oil pump all have application in four-stroke universal gasoline engine.The oil pump transmission device is big by the oil pump transmission, and small gear or large and small sprocket wheel are formed, if adopt sprocket driving, also will use drive chain.Oil pump all will adopt gearing down.Gearwheel or hinge wheel are installed on the oil pump, and small gear or minor sprocket are installed in an end of crank assemblby, because the petrol engine rotational speed height, gearing down does not make lubricant oil produce a large amount of foams easily, form cavitation erosion, cause petrol engine to damage.The machine oil filtrating equipment is made up of filter screen, papery or metal filtering core, prevents that foul from sneaking into profit oil.Oil storage also claims oil sump, usually be located at crankcase assembly inside, the pressure lubrication circulation canal is located at crankcase assembly inside usually, adopt the vertical vertical kind of drive owing to be used as the four-stroke universal gasoline engine of outboard machine power, the utility model is except that keeping original pressure lubrication circulatory system assembly, design has increased by a cover pressure lubrication circulatory system assembly again in the lower crankcase lid, the drive propulsion system of outboard machine still adopts prior art products, and the system of original mature and reliable and whole component are to reduce cost.
The utility model adopts the beneficial effect of above-mentioned improvement design to be: fuel consume and exhaust emission significantly reduce, noise reduces, gasoline engine lubricating obviously improves abundant working life.
Description of drawings
Below in conjunction with drawings and Examples are outer the utility model is described further
Fig. 1 is first embodiment's of the utility model a longitudinal section structure sketch
Among the figure 1, cylinder cover complement, 2, the cylinder block assembly, 3, the lower crankcase lid, 4, crank assemblby, 5, piston assembly, 6, magnetogenerator, 7, the lower crankcase body, 8, the upper crankcase body, 9, the upper crankcase lid, 10, connecting rod ASSY, 11, distribution cam axle, 12, timing transmission hinge wheel, 13, timing transmission minor sprocket, 14, the timing drive chain, 15, oil pump, 16, oil pump transmission hinge wheel, 17, oil pump transmission minor sprocket, 18, the oil pump drive chain, 19, upper shield, 20, lower shield, 21, the clutch housing guard shield, 22, clutch housing, 23, clutch, 24, transmission shaft, 25, transmission shaft shell, 26, propeller, 27, propeller shaft, 28, propeller transmission large bevel gear, 29, propeller transmission bevel pinion, 30, the propeller transmission shaft shell, 31, spark plug.
Embodiment
In first embodiment shown in Figure 1, the oil pump (15) of the general steam turbine of four-stroke of the horizontal kind of drive of using always of level is installed in to rely on oil pump transmission hinge wheel (16) in the upper crankcase body (8) and be contained in crank assemblby (4) one terminal oil pump transmission minor sprockets (17) and relies on disconnected the driving by crank assemblby (4) of oil pump drive chains (18) that machine oil is pumped into the interior pressure lubrication circulation canal of lower crankcase body (7) upper crankcase body (8) in the sucking-off from oil sump, the component of lubricated petrol engine inside, adopt the vertical vertical kind of drive owing to do the four-stroke universal gasoline engine of outboard machine power, for this reason in the mounting point of the oil pump (15) in keeping upper crankcase body (8), in lower crankcase lid (3), increase design one cover again and force the profit circulatory system, oil pump (15) is installed in the machine oil transmission minor sprocket (17) that relies on oil pump transmission hinge wheel (16) in the lower crankcase lid (3) and be installed in crank assemblby (4) one ends relies on oil pump drive chain (18), drive by crank assemblby (4) and machine oil is pumped into the pump circulation passage of design in lower crankcase lid (3) from the oil sump sucking-off in the lower crankcase lid (3) enter the component that lubricate petrol engine inside in the pressure lubrication circulation canal in lower crankcase body (7) the upper crankcase body (8).The end that crank assemblby (4) stretches out lower crankcase lid (3) links together with the clutch (23) that is installed in the clutch housing (22), one end of transmission shaft (24) is installed in the inner splined hole of clutch housing (22) lower end, the other end of transmission shaft (24) is equipped with propeller transmission bevel pinion (29) and is meshing with each other together with the propeller transmission large bevel gear (28) that is installed on the propeller shaft (27), and propeller (26) is installed in propeller shaft (27) foremost.Driving clutch (23) when crank assemblby (4) turns round rotates together, the centrifugal force that running produces tightly fits together clutch (23) and clutch housing (22), thereby drive transmission shaft (24) rotation,, drive propeller (26) rotation that is installed in propeller shaft (27) front end and produce propelling force and promote the navigation of boat oceangoing ship by being installed in propeller transmission large bevel gear (28) on the propeller shaft (27) gearing down that is meshing with each other at the propeller transmission bevel pinion (29) of transmission shaft (24) the other end.
Claims (1)
1. outboard machine of making power of four-stroke universal gasoline engine, by cylinder cover complement (1), cylinder block assembly (2), lower crankcase lid (3), crank assemblby (4), piston assembly (6), lower crankcase body (7), upper crankcase body (8), oil pump (15), oil pump drive chain (18), clutch housing (22), clutch (23), propeller (26), etc. form, it is characterized in that: in lower crankcase lid (3), interior organic oil pump (15) mounting point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200284494U CN201080838Y (en) | 2007-09-22 | 2007-09-22 | Outboard engine powered by four stroke general purpose petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200284494U CN201080838Y (en) | 2007-09-22 | 2007-09-22 | Outboard engine powered by four stroke general purpose petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080838Y true CN201080838Y (en) | 2008-07-02 |
Family
ID=39614511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200284494U Expired - Fee Related CN201080838Y (en) | 2007-09-22 | 2007-09-22 | Outboard engine powered by four stroke general purpose petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201080838Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285929A (en) * | 2015-05-29 | 2017-01-04 | 浙江派尼尔科技股份有限公司 | A kind of four stroke vertical and horizontal Electrocontrolled high-pressure common rail charge inter cooling full aluminum diesel outboard engines |
-
2007
- 2007-09-22 CN CNU2007200284494U patent/CN201080838Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285929A (en) * | 2015-05-29 | 2017-01-04 | 浙江派尼尔科技股份有限公司 | A kind of four stroke vertical and horizontal Electrocontrolled high-pressure common rail charge inter cooling full aluminum diesel outboard engines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080702 Termination date: 20100922 |