TWI638095B - Engine intake structure - Google Patents

Abstract

The invention relates to an engine intake structure, which comprises at least a cylinder block, a brake group disposed in the cylinder block and an intake diversion group disposed in the cylinder block, wherein the cylinder block forms a difference between the lower section and the upper section respectively. a gas port and an exhaust port, wherein the brake block is provided with two opposite brake discs corresponding to the intake ports, and the brake discs are formed with an intake brake groove at a periphery of the opposite inner wall surface. The air brake groove is formed by a relatively long guide groove formed on the opposite inner circumferential wall surface of the two brake discs, and the intake air flow guiding group can be used for assembling the air inlet of the cylinder block and for locking a carburetor. And the air intake diversion group has an air guiding hole corresponding to the air inlet port, thereby being able to utilize the mandatory intake air of the intake brake groove of the brake group, so that the intake time and the intake air amount can be stabilized, Misoperation will occur, and the intake port of the cylinder block is located in the lower section, and the exhaust port is located in the upper section, so that the overall airflow path is greatly shortened, and the convection effect is obtained, so that the intake time is long and the intake air amount is large, which can be effective. Increase intake air flow rate In order to make the engine burn more completely, significantly improved engine performance.

Description

Engine intake structure

The invention belongs to the technical field of an engine, in particular to an engine intake structure with a short intake path and a fast flow rate, so that the intake air can be long and the amount is increased, and the efficiency of the intake air can be improved. Improve the performance of the engine, further prevent backfire, and improve the safety of use.

According to the general engine, the operation mode can be roughly divided into the following four stages: intake, compression, ignition and exhaust are one cycle, and the technique of completing the cycle by two strokes is called a two-stroke cycle. The engine of the stroke cycle is called the two-stroke engine.

The existing two-stroke engine includes a cylinder block, an air inlet hole, a check valve, a disk piston, a vent hole and a crank arm, and the air inlet hole, the vent hole and the disk piston are disposed on the cylinder Above the body, the disc piston can reciprocate in the cylinder body through the operation of the crank arm, and the check valve is disposed in the air inlet hole, and the combustible mixture is ignited by a spark plug to generate an explosion. The explosion pushes the disc piston and performs a falling motion by the crank arm, thereby sequentially performing the operations of intake, compression, ignition and exhaust, and completing the two-stroke cycle.

However, since the exhaust and intake of the conventional two-stroke engine are located in the upper half of the cylinder block, and the airflow path is located in the U-shape of the disc piston of the cylinder block and the periphery of the crank arm, not only the airflow path is meandering. Shape, and the path length is long, into, The venting holes cannot form convection, which will shorten the intake time and the intake air flow rate will directly affect the efficiency of engine combustion. At the same time, the action of the airtight reed of the check valve is affected by the reciprocating action of the disc piston. When the vehicle is actuated rapidly, the shorter the intake time of the opening valve may cause the reed valve to open and close due to the pressure difference. The stability of the engine's intake action is reduced. Moreover, the gas-tight reed of the check valve can not be closed, and the backfire phenomenon is generated, which seriously affects the safety of the engine. In addition, it may result in incomplete or incomplete combustion, which not only reduces engine efficiency, but also wastes energy, and thus forms pollution problems; In other words, in view of the above-mentioned lack of the conventional engine, how to ensure the intake operation and increase the amount of intake air, thereby improving the combustion efficiency, is an urgent problem to be solved by the current engine.

In view of this, the inventors have in-depth discussions on the problems faced by existing engines in application, and have actively sought solutions through years of experience in R&D and manufacturing of related industries, and have succeeded in research and trials. The development of an engine intake structure can overcome the inconvenience and trouble caused by the inadequate intake of the engine and the instability of the intake air.

Therefore, the main object of the present invention is to provide an efficient engine intake structure, so that the intake air can form convection, and the air flow path is short, so that the engine burns sufficient oxygen, and the intake time is long and the flow rate is large. Make the engine burn more completely and greatly improve its combustion efficiency.

Moreover, the second main object of the present invention is to provide an engine intake structure with good intake stability, which utilizes a simple rotary intake air, and the intake action of each cycle is fixed, and does not become a check valve. The airtight reed may malfunction. Therefore, the engine has a high rate.

Furthermore, another main object of the present invention is to provide an engine intake structure with good intake air tightness, which can improve the airtightness during operation, does not cause backfire, and can effectively improve the safety of the engine.

Accordingly, the present invention mainly achieves the foregoing objects and effects through the following technical means: at least one cylinder block, a brake group disposed in the cylinder block, and an intake diversion group disposed in the cylinder block The air intake diversion group is provided with a carburetor; the cylinder system is composed of a cylinder block and a cylinder cover which can be relatively closed, and the lower part of the cylinder block has an air inlet, and The cylinder block is further formed with a shaft hole on the two side walls different from the air inlet port, wherein the cylinder block has a piston chamber inside, and the opposite ends of the cylinder block and the cylinder head respectively form a semicircle connecting the piston chamber a brake disc chamber, wherein the cylinder seat and the cylinder cover are respectively formed with a corresponding gap communicating with the brake disc chamber on a side wall surface of the docking portion for respectively facing the air inlet of the cylinder block, and the cylinder block A semi-circular shaft groove coaxial with the brake disc chamber is formed on each of the two side walls of the cylinder head at the abutting portion, and is formed by the opposite cover to form the shaft hole for pivoting the brake group, and the upper portion of the side wall of the cylinder block is formed. Having a exhaust chamber connecting the piston chamber And a mounting hole connecting the piston chamber and the spark plug is formed at the top of the cylinder block, and the cylinder block of the cylinder body forms an air inlet between the piston chamber and the inner wall surface of the brake disc chamber. The brake unit is further provided with two opposite brake discs in the brake disc chamber of the cylinder block. The shaft of the brake disc has a shaft pivoted to the shaft hole of the cylinder block, and the two brake discs are arranged. The eccentric pivot is provided with a crank arm, and the top end of the crank arm is pivotally provided with a disc piston slidingly disposed in the piston chamber, and the brake discs are on opposite inner sidewalls The periphery of the face is formed with an intake brake groove formed by relatively long guide grooves formed on the opposite inner peripheral wall surfaces of the two brake disks; and the intake flow guide group can be used for assembling the cylinder The air inlet of the body is locked to the carburetor, and the air intake diversion group has an air guiding hole corresponding to the intake brake groove of the brake disc.

Thereby, through the foregoing technical means, the engine of the present invention can utilize the mandatory intake air of the intake brake groove of the brake group during the movement, so that the intake time and the intake air amount can be stabilized, and the The malfunction occurs, and the intake port of the cylinder block is located in the lower section, and the exhaust port is located in the upper section, so that the overall airflow path is greatly shortened, and the convection effect is obtained, so that the intake time is long and the intake air amount is large, which can effectively improve The intake air flow rate makes the combustion of the engine more complete and greatly improves the engine performance. In addition, the intake system is completed by the brake disc intake brake groove of the brake group, and the opening and closing of the intake air is extremely reliable, the overall gas The tightness is good, there is no backfire problem, and the safety of the engine can be improved, so the added value of the product can be greatly increased, and the economic efficiency and competitiveness of the product can be improved.

The preferred embodiments of the present invention are set forth in the accompanying drawings, and the claims

(10) ‧‧‧Cylinder block

(100)‧‧‧ intake

(105)‧‧‧Axis hole

(11)‧‧‧Cylinder seat

(110)‧‧‧ mounting holes

(111)‧‧‧ gap

(112) ‧ ‧ vents

(12)‧‧‧Piston chamber

(13) ‧‧‧ brake disc chamber

(131)‧‧‧ shaft slots

(14)‧‧‧Intake passage

(15)‧‧‧Cylinder head

(151) ‧ ‧ gap

(16) ‧‧‧ brake disc chamber

(161)‧‧‧ shaft slots

(20) ‧‧‧ brake group

(21)‧‧‧ brake disc

(210)‧‧‧ shaft

(22)‧‧‧ crank arm

(23)‧‧‧Disc piston

(25)‧‧‧Intake brake groove

(26) ‧‧‧Long guide slot

(27)‧‧‧ oblique guide

(30)‧‧‧Intake diversion group

(31)‧‧‧ Mounting

(32)‧‧‧Installation holes

(33) ‧‧ ‧ diversion seat

(330) ‧‧‧Installation class

(331)‧‧‧Installation class

(34)‧‧‧ Air vents

(340)‧‧‧Inlay

(341)‧‧‧Drainage branch

(342) ‧‧ ‧ diversion branch

(35) ‧‧ ‧ diversion block

(350)‧‧‧Slanted Cone

(351)‧‧‧ jack

(36)‧‧‧

(360)‧‧‧ jack

(50)‧‧‧Carburetor

(90)‧‧‧Mars plug

The first figure is a schematic view of the three-dimensional appearance of the engine intake structure of the present invention.

Second Figure: is a side cross-sectional view of the engine intake structure of the present invention.

The third figure is a partial exploded view of the intake structure of the engine of the present invention. The main elements of the invention and their relative relationships are shown.

The fourth figure is a schematic view of the appearance of the brake group in the intake structure of the engine of the present invention.

Fig. 5 is a schematic exploded view of the intake air flow group in the intake structure of the engine of the present invention.

Fig. 6 is a top cross-sectional view showing the brake group and the intake air flow guiding group in the intake structure of the engine of the present invention.

Fig. 7 is a schematic view showing the ignition operation of the engine to which the present invention is applied.

Figure 8 is a schematic view of the exhaust operation of the engine to which the present invention is applied.

Fig. 9 is a schematic view showing the intake operation of the engine to which the present invention is applied.

Fig. 10 is a schematic view showing the compression operation of the engine to which the present invention is applied.

The present invention is an engine intake structure, with reference to the drawings illustrating specific embodiments of the present invention and its components, all with respect to front and rear, left and right, top and bottom, upper and lower, and horizontal and vertical references, only It is intended to facilitate the description, not to limit the invention, and to limit its components to any position or spatial orientation. The drawings and the dimensions specified in the specification may be varied in accordance with the design and needs of the specific embodiments of the present invention without departing from the scope of the invention.

The present invention is an engine intake structure, as disclosed in the first, second and third figures, comprising at least one cylinder block (10), a brake group (20) disposed in the cylinder block (10), and a The intake air guiding group (30) of the intake port of the cylinder block (10), wherein the intake air guiding group (30) is connected with a carburetor (50), wherein the carburetor (50) is typical For the detailed configuration of the preferred embodiment of the present invention, please refer to the first, second and third figures, the cylinder block (10) is the cylinder block (11). And a relatively coverable cylinder head (15), and the lower portion of the cylinder block (10) has a corresponding brake group (20) and an air inlet (100) for connecting the intake air flow group (30) And the cylinder block (10) is further formed with a shaft hole (105) for pivoting the brake group (20) on the two side walls different from the air inlet (100), wherein the cylinder block (11) has a piston inside a chamber (12), and a semi-circular brake disc chamber (13, 16) communicating with the piston chamber (12) is formed at an opposite end of the cylinder block (11) and the cylinder head (15) for common assembly In the foregoing brake group (20), a side wall surface of the cylinder block (11) and the cylinder head (15) is respectively formed with a corresponding gap (111, 16) communicating with the brake disc chamber (13, 16). 151), for relatively closing the air inlet (100) of the cylinder block (10), the cylinder seat (11) and the cylinder head (15) are opposite to each other on the two side walls of the gap (111, 151) Forming a semi-circular shaft groove (131, 161) concentric with the brake disc chamber (13, 16) for opposingly forming the shaft hole (105) for pivoting the brake group (20), and the cylinder block ( 10) The upper portion of the side wall is formed with an exhaust port (112) that communicates with the piston chamber (12), and the cylinder block (1) 0) The top end is further formed with a mounting hole (110) connecting the piston chamber (12) for a spark plug (90) set [as shown in the seventh to tenth drawings], and then the cylinder block (10) cylinder The seat (11) forms an air inlet passage (14) between the piston chamber (12) and the inner wall surface of the brake disc chamber (13); and the brake group (20) is braked to the cylinder block (10). The disc chambers (13, 16) are provided with two opposite brake discs (21), and the shafts of the brake discs (21) have a shaft (210) pivotally disposed on the shaft hole (105) of the cylinder block (10). And a crank arm (22) is eccentrically disposed between the two brake discs (21), and a crank piston of the crank arm (22) is pivotally disposed in the piston chamber (12) of the cylinder block (10). (23), the disc piston (23) is reciprocally movable in the piston chamber (12), and The brake disc (21) is driven to rotate at a high speed. Referring further to the fourth and sixth figures, the brake discs (21) are formed with an intake brake groove (25) on the periphery of the opposite inner wall surface, the intake brake groove ( 25) The angle between the two ends is 75 to 120 degrees, and the optimum angle of the present invention is 85 to 95 degrees, which is formed by relatively long guide grooves (26) formed on the inner circumferential wall surfaces of the two brake disks (21). And the long guide groove (26) further has an inclined guide surface (27) that is converged toward the center to increase the intake air flow rate, so that when the brake disc (21) of the brake group (20) rotates at a high speed, when it enters When the air brake groove (25) corresponds to the air inlet (100) of the cylinder block (10), the air can be actively forcibly sucked; as for the intake air flow group (30), the third, fifth and sixth figures can be further referred to. As shown, the intake air guiding group (30) includes a mounting seat (31) and a flow guiding seat (33), wherein the mounting seat (31) can be used for assembling the air inlet of the cylinder block (10) ( 100), and the carburetor (50) is locked, and the mounting seat (31) has a mounting hole (32) therein, and the two sides of the guiding seat (33) respectively have a corresponding mounting hole (32) and Air intake (100) installation class (330, 331) The flow guiding seat (33) is located between the mounting seat (31) and the cylinder block (10), and the air guiding hole (34) has an air guiding hole (34) in the middle thereof, and the air guiding hole (34) is directed to the air inlet. The mouth (100) is enlarged in a tapered shape, and the flow guiding seat (33) is provided with a guiding block (35) in the middle of the air guiding hole (34), so that the air guiding hole (34) forms two guiding branches (341, 342). And the flow guiding block (35) has a tapered surface (350) that is converged toward one end of the carburetor (50), so that the guiding branches (341, 342) on both sides of the guiding block (35) form a channel gradually Shrinking to accelerate gas flow, and further, the flow guiding seat (33) forms a matching groove (340) corresponding to the shape of the guiding block (35) in the air guiding hole (34) to prevent the guiding block (35) from moving arbitrarily, and The flow guiding seat (33) and the guiding block (35) are formed with an opposite insertion hole (360, 351) for fixing the flow guiding block (35) to the flow guiding seat (33) by using a plunger (36). Guide In the air hole (34), the flow guiding block (35) is prevented from falling off in the air intake diversion group (30); thereby, the group constitutes an engine intake structure with good intake air stability and a large intake air amount. By.

As for the actual application of the engine of the present invention, please refer to the disclosures of the seventh, eighth, ninth and tenth drawings, respectively, which disclose the state of ignition, exhaust, intake and compression of the engine. Thus, when the engine is ignited and exploded, the disc piston (23) of the brake group (20) is located at the apex of the piston chamber (12) of the cylinder block (10), and starts to slide downward, and the brake of the brake group (20) The intake brake groove (25) on the disk (21) begins to enter the position corresponding to the intake port (100) of the cylinder block (10). When the disc piston (23) moves below the exhaust port (112) of the cylinder block (10), the exhaust is started, and the intake brake groove on the brake disc (21) of the brake group (20) is started (25). Then, the air intake port (100) is separated from the cylinder block (10), and the intake brake groove (25) can be forced to move, suck in gas, and utilize the intake air flow when passing through the air inlet (100) at a high speed. The group (30) introduces the gas and stores it in the intake brake groove (25). And when the disc piston (23) moves below the intake passage (14) of the cylinder block (10), the gas can be introduced into the cylinder piston (23) above the disc piston (23) of the piston chamber (12). Within the space. When the brake group (20) is running, the disc piston (23) is pressed again for the ignition of the next cycle, so that the engine continuously ignites the ignition, exhaust, intake and compression for the brake group (20). The shaft (210) generates kinetic energy.

Through the foregoing design, the engine of the present invention can use the intake brake groove (25) of the brake group (20) to forcibly suck the gas during operation, so that the intake time and the intake air amount can be stabilized, and the stability is not achieved. If the practitioner is affected by the airtight reed action of the reverse valve, no malfunction will occur and the intake of the cylinder block (10) will occur. The mouth (100) is located in the lower section, and the exhaust port (112) is located in the upper section, so that the overall airflow path is greatly shortened, and the convection effect is obtained, so that the intake time is long and the intake air amount is large, and the intake air flow rate can be effectively improved. Therefore, the combustion of the engine is more complete, and the engine performance is greatly improved; in addition, the intake system is completed by the brake disc (21) of the brake group (20), and the intake and exhaust of the brake is completed. It is extremely true that the overall air tightness is good, there is no backfire problem, and the safety of the engine can be improved.

In summary, it can be understood that the present invention is an excellent invention, in addition to effectively solving the problems faced by the practitioners, the effect is greatly enhanced, and the same or similar product creation or the same technical field is not seen or The invention has been used publicly and has the effect of improving the efficiency. Therefore, the present invention has met the requirements for "novelty" and "progressiveness" of the invention patent, and is an application for filing an invention patent according to law.

Claims (8)

An engine intake structure comprising at least one cylinder block, a brake set disposed in the cylinder block, and an intake diversion group disposed in the cylinder block, wherein the intake diversion group is connectable with a chemical oil The cylinder system is composed of a cylinder block and a relatively coverable cylinder head, and the lower part of the cylinder block has an air inlet, and the cylinder body has another shaft formed on two side walls different from the air inlet. a hole, wherein the cylinder seat has a piston chamber therein, and the opposite ends of the cylinder block and the cylinder head respectively form a semicircular brake disc chamber that communicates with the piston chamber, and the cylinder block is docked with the cylinder head One side wall surface is respectively formed with an opposite gap communicating with the brake disc chamber for the opposite cover to form an air inlet of the cylinder block, and the cylinder block and the cylinder head are respectively formed on the opposite side walls of the notch a semi-circular shaft groove coaxial with the brake disc chamber for opposingly forming the shaft hole for pivoting the brake group, and an upper exhaust port of the cylinder body is formed with an exhaust port communicating with the piston chamber, and the cylinder block top end Another formed a connecting piston chamber for Mars a mounting hole is formed, and a cylinder block of the cylinder block forms an air inlet passage connecting the piston chamber and the inner wall surface of the brake disc chamber; and the brake group is disposed in the brake disc chamber of the cylinder block. Two opposite brake discs, the shaft of the brake disc has a shaft pivoted to the shaft hole of the cylinder block, and an eccentric pivot between the two brake discs is provided with a crank arm, and the top end of the crank arm is pivotally disposed on the shaft The disc pistons in the piston chamber are formed with an intake brake groove on the periphery of the opposite inner wall surface, and the intake brake groove is formed by relatively long guide grooves formed on the opposite inner peripheral wall surfaces of the two brake discs. ; The air intake diversion group is configured to be connected to the air inlet of the cylinder block and is connected to the carburetor, and the air intake diversion group is composed of a mounting seat and a flow guiding seat. The mounting seat has a mounting hole therein, and the two ends of the guiding seat have a mounting stage corresponding to the mounting hole and the air inlet, so that the guiding seat is located between the mounting seat and the cylinder block, and the intake air guiding group There is an air guiding hole corresponding to the intake brake groove of the brake disc, and the air guiding hole is formed on the flow guiding seat. The engine intake structure according to claim 1, wherein an angle between the two ends of the intake brake groove of the brake group is 85 to 95 degrees. The engine intake structure according to claim 1, wherein the long guide groove forming the intake brake groove on the two brake discs of the brake group has an inclined guide surface that is converged toward the center. The engine intake structure according to claim 1, wherein the air guiding hole of the air intake guiding group has a tapered shape which is enlarged toward the air inlet. The engine intake structure according to claim 1, wherein the air intake diversion group is provided with a flow guiding block in the middle of the air guiding hole, so that the air guiding hole forms two guiding branches. The engine intake structure of claim 5, wherein the flow guiding block of the intake air guiding group has a tapered surface that is converged toward one end of the carburetor. The engine intake structure of claim 5, wherein the intake air guiding group is formed with a corresponding groove of the corresponding flow guiding block in the air guiding hole. The engine intake structure of claim 1, wherein the intake air flow group is composed of a mounting seat and a flow guiding seat, the mounting seat has a mounting hole therein, and the guiding seat has two The ends respectively have a mounting section corresponding to the mounting hole and the air inlet, so that the flow guiding seat is located between the mounting seat and the cylinder block, and the air guiding hole The utility model is formed on the flow guiding seat, and a guiding block is arranged in the middle of the air guiding hole, so that the air guiding hole forms two guiding branches, and the guiding socket and the guiding block form an opposite socket for using a plunger The flow guiding block is fixed in the air guiding hole of the flow guiding seat.