JPH056128U - Rotary piston engine - Google Patents

Abstract

(57) [Summary] [Purpose] The combustion efficiency is higher than that of the conventional reciprocating piston engine, and the air-fuel mixture can be completely burned.
Provided is a new type of engine capable of obtaining a larger torque than a conventional reciprocating piston engine. [Structure] An annular housing 9 is arranged concentrically with a shaft 5, a central portion of a disk 11 is fixedly attached to the shaft 5, an outer periphery is inserted into an inner peripheral groove 10 of the housing 9, and a semi-annular rotary piston 13 is connected to the disk 11. And is housed in the housing 9 and fixed to the outer periphery of the disk 11,
The partition valve 14 partitions the chamber in the housing 9,
An intake port 15 and an exhaust port 16 of the housing 9 are formed at positions on both sides thereof, the head end 6 of the cylinder 2 and the intake port 15 of the housing 9 are connected by a pipe 17, and the air-fuel mixture at the head end 6 is inside the pipe 17. It is compressed, the mixture in the pipe 17 is burned and expanded by the spark plug 20,
This jets out into the housing 9, which propels the rotary piston 13 and causes the rotary piston 13 to rotate along the housing 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotary piston engine used in automobiles, agricultural machinery, construction machinery, ships, small aircraft, and the like.

[0002]

[Prior art and its problems]

 As is well known, automobile engines are mostly reciprocating piston engines. In a reciprocating piston engine, a reciprocating piston is housed in a cylinder, connected to a shaft via a connecting rod and a crank arm, the mixture is sucked into the head end of the cylinder, and the mixture is compressed by the reciprocating piston to ignite. The mixture burns and expands due to the plug. This propels and reciprocates the reciprocating piston, which rotates the shaft with the connecting rod and crank arm. However, in the case of this type of engine, its combustion efficiency is limited, and it is difficult to completely burn the air-fuel mixture. Further, it is necessary to convert the reciprocating movement of the reciprocating piston into the rotation of the shaft, which limits the torque, and although a certain amount of torque can be obtained, it is impossible to obtain more torque. Therefore, although it has been improved over the years, it cannot be said that the demands of the industry have been met.

[0003]

[The purpose of the device]

 This invention provides a new type engine that has higher combustion efficiency than the conventional reciprocating piston engine, can completely burn the air-fuel mixture, and can obtain a larger torque than the conventional reciprocating piston engine. It was done for the purpose of doing.

[0004]

[Device configuration]

 According to this invention, the reciprocating piston housed in the cylinder is connected to the shaft via the connecting rod and the crank arm, and in the engine of the type that sucks the air-fuel mixture into the head end of the cylinder, the annular housing is The housing is concentrically arranged, and an inner circumferential groove is formed on the inner circumference of the housing. Further, the center portion of the disc is fixed to the shaft, the outer periphery is inserted into the inner circumferential groove of the housing, and the seal member seals between the disc and the inner circumferential groove. A semi-annular rotary piston is provided around the disk, extends over a predetermined angle range, is housed in the housing, and is fixed to the outer circumference of the disk. Further, the partition valve extends in the transverse direction of the housing, and the partition valve partitions the chamber in the housing. The sluice valve is movably guided in the cross-sectional direction of the housing and can be moved to a retracted position where the chamber is retracted from the chamber. Further, an inlet and an outlet of the housing are formed at positions on both sides of the sluice valve, the head end of the cylinder and the inlet of the housing are connected by a pipe, and an opening / closing valve is provided in the pipe near the head end of the cylinder. A spark plug is provided in the pipe at a position between the pipe opening / closing valve and the suction port of the housing. Then, the sluice valve, the on-off valve, and the spark plug are controlled by the control mechanism such as the cam mechanism which is interlocked with the shaft, the air-fuel mixture at the head end of the cylinder is introduced into the pipe, and is compressed in the pipe. The spark plug burns the air-fuel mixture in the pipe, expands it, and ejects it into the housing, which propels the rotary piston and causes the rotary piston to rotate along the housing.

[0005]

[Explanation of Examples]

 An embodiment of this invention will be described below.

In FIG. 1, the engine has a reciprocating piston 1 and a cylinder 2. The reciprocating piston 1 is used in a normal reciprocating piston engine and is housed in a cylinder 2 and connected to a connecting rod 3. And a crank arm 4 and a shaft 5. Further, an intake port 7 is formed at the head end 6 of the cylinder 2, and a poppet valve 8 is provided at the intake port 7. The intake port 7 is connected to a carburetor that mixes fuel and air, and the poppet valve 8 is It is connected to a cam mechanism that interlocks with the shaft 5. Therefore, as in the case of a normal reciprocating piston engine, when the reciprocating piston 1 moves toward the rod end of the cylinder 2 and descends, the poppet valve 8 is opened by the cam mechanism and the air-fuel mixture reaches the head end 6 of the cylinder 2. Inhaled.

Further, this engine has an annular housing 9, which is provided around the shaft 5, is arranged concentrically with the shaft 5, and is fixed. Further, an inner peripheral groove 10 is formed on the inner periphery of the housing 9, the center portion of the disc 11 is fixed to the shaft 5, the outer periphery is inserted into the inner peripheral groove 10 of the housing 9, and the disc 11 is sealed by the seal member 12. The space between the inner peripheral groove 10 and the inner peripheral groove 10 is sealed. The shaft 5 penetrates the disk 11. Further, this engine has a semi-annular rotary piston 13, which is provided around the disk 11, extends over an angular range of about 180 °, is housed in the housing 9, and has an outer circumference of the disk 11. Is stuck to. The rotary piston 13 is hollow and both ends thereof are closed.

Further, as shown in FIG. 2, the partition valve 14 extends in the cross-sectional direction of the housing 9, and the partition valve 14 partitions the chamber in the housing 9. The sluice valve 14 is movably guided in the cross-sectional direction of the housing 9, and is connected to a cam mechanism that interlocks with the shaft 5. The sluice valve 14 can be moved by the cam mechanism. It moves from the chamber in 9 to the retracted position where it retracts. In this embodiment, the direction of movement is the radial direction of the housing 9. Further, an intake port 15 and an exhaust port 16 of the housing 9 are formed at positions on both sides of the partition valve 14, and a pipe 17 connects the head end 6 of the cylinder 2 and the intake port 15 of the housing 9. An opening / closing valve 18 is provided in the pipe 17 near the head end 6 of the cylinder 2, and an ignition plug 20 is provided in the pipe 17 between the opening / closing valve 18 of the pipe 17 and the suction port 15 of the housing 9. .. In this embodiment, an opening / closing valve 19 is provided in the pipe 17 in the vicinity of the intake port 15 of the housing 9, and an ignition plug 20 is provided at a position between the respective opening / closing valves 18 and 19. The on-off valves 18 and 19 are connected to a cam mechanism that interlocks with the shaft 5, and the spark plug 20 is connected to a switch that interlocks with the shaft 5.

In this engine, when the shaft 5 rotates around its axis, the crank arm 4 rotates integrally with the shaft 5, whereby the reciprocating piston 1 reciprocates, as in a normal reciprocating piston engine. However, the rotary piston 13 also rotates integrally with the disc 11 and the shaft 5. Therefore, the rotary piston 13 rotates in a constant phase relationship with the reciprocating piston 1. In this embodiment, the rotary piston 13 rotates clockwise in FIG.

Then, in the stroke of FIG. 2, when the reciprocating piston 1 moves toward the head end 6 of the cylinder 2 and rises, the poppet valve 8 of the cylinder 2 is closed by the cam mechanism. At the same time, the opening / closing valve 18 of the pipe 17 is opened and the opening / closing valve 19 is closed by the cam mechanism. Therefore, the air-fuel mixture at the head end 6 is pushed out by the reciprocating piston 1, and the air-fuel mixture is introduced into the pipe 17. Then, the reciprocating piston 1 rises to a position close to the head end 6 of the cylinder 2, and the air-fuel mixture is compressed in the pipe 17.

When the air-fuel mixture is compressed in the pipe 17, the sluice valve 14 is moved to its retracted position and retracted from the chamber of the housing 9, and the rotary piston 13 is moved to the suction port 15 of the housing 9 and the rotary piston 13. It is arranged at the position of the exhaust port 16. Therefore, the intake port 15 of the housing 9 is closed by the rotary piston 13, and the air-fuel mixture can be compressed in the pipe 17 without the opening / closing valve 19 of the pipe 17, but when the opening / closing valve 19 is closed, the mixing is performed. It is preferable because it can minimize the loss of feelings. Then, when the reciprocating piston 1 reaches its top dead center, as shown in FIG. 3, the rear end of the rotary piston 13 passes through the suction port 15 of the housing 9 and thereby the suction port 15 of the housing 9. Is opened. At the same time, the sluice valve 14 is moved by the cam mechanism, and the sluice valve 14 partitions the chamber in the housing 9. Further, the opening / closing valve 18 of the pipe 17 is closed and the opening / closing valve 19 is opened by the cam mechanism, and the air-fuel mixture in the pipe 17 is ignited by the ignition plug 20, and is burned and expanded. Therefore, the air-fuel mixture passes through the suction port 15 of the housing 9 and is jetted into the housing 9. Therefore, as shown in FIG. 4, the air-fuel mixture burns and expands in the housing 9, which propels the rotary piston 13. Therefore, the rotary piston 13 rotates along the housing 9, which drives and rotates the shaft 5.

Next, when the front end of the rotary piston 13 reaches the exhaust port 16 of the housing 9, the sluice valve 14 moves by the cam mechanism, and the sluice valve 14 retreats from the chamber inside the housing 9. Thereafter, as shown in FIG. 5, the front end of the rotary piston 13 reaches the suction port 15 of the housing 9, and the rotary piston 13 closes the suction port 15 and the exhaust port 16 of the housing 9. Then, after the stroke of FIG. 2, in the stroke of FIG. 3, the rear end of the rotary piston 13 passes through the exhaust port 16 of the housing 9, whereby the exhaust port 16 of the housing 9 is opened, and the sluice valve 14 is used. The room inside Jing 9 is partitioned. Therefore, as the rotary piston 13 rotates, exhaust gas is exhausted from the exhaust port 16 of the housing 9.

In the strokes of FIGS. 3 and 4, the cam mechanism opens the poppet valve 8 of the cylinder 2, the reciprocating piston 1 descends toward the rod end of the cylinder 2, and the air-fuel mixture moves to the head of the cylinder 2. Inhaled at end 6. 5 and 2, the cam mechanism closes the poppet valve 8 of the cylinder 2, and at the same time, the cam mechanism opens the opening / closing valve 18 of the pipe 17 and closes the opening / closing valve 19. The reciprocating piston 1 rises toward the head end 6 of the cylinder 2. Therefore, the air-fuel mixture at the head end 6 is introduced into the pipe 17 and compressed in the pipe 17.

Then, the above-described steps are sequentially and alternately repeated, and the air-fuel mixture burns and expands in the pipe 17 and the housing 9, whereby the rotary piston 13 is propelled and the shaft 5 is driven. Rotate.

[0015]

[Effect of the device]

 As is apparent from the above-mentioned embodiment, according to the present invention, the air-fuel mixture is burned and expanded in the pipe 17 and the housing 9, whereby the rotary piston 13 can be propelled and the shaft 5 can be driven. Moreover, the capacity of the housing 9 can be set to any size. Therefore, the air-fuel mixture can be burned and expanded in a large space, and the combustion efficiency is higher than that of the conventional reciprocating piston engine. It is also possible to completely burn the air-fuel mixture. As a result, it is possible to improve fuel efficiency and contribute to the problem of air pollution. Further, the rotary piston 13 can be rotated along the housing 9 and the shaft 5 can be rotated integrally with the rotary piston 13, so that the linear movement of the reciprocating piston is converted into the rotation of the shaft as in the conventional reciprocating piston engine. do not have to. Therefore, it is possible to obtain a torque larger than that of the reciprocating piston engine and achieve the intended purpose.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is an explanatory view showing a compression process of the engine of FIG.

FIG. 3 is an explanatory diagram showing a next step of the engine of FIG.

FIG. 4 is an explanatory view showing a next step of the engine of FIG.

5 is an explanatory diagram showing a next step of the engine of FIG. 4. FIG.

[Explanation of symbols]

 1 Reciprocating Piston 2 Cylinder 5 Shaft 6 Head End 9 Housing 10 Inner Circumferential Groove 11 Disk 12 Sealing Member 13 Rotary Piston 14 Gate Valve 15 Inlet 16 Exhaust 17 Pipe 18 Opening Valve 19 Opening Valve 20 Spark Plug

Claims (1)

[Claim 1] A reciprocating piston housed in a cylinder is connected to a shaft via a connecting rod and a crank arm, and a mixture is drawn into the head end of the cylinder. An inner circumferential groove is formed on the inner circumference of an annular housing that is arranged concentrically with the shaft, and the outer circumference of a disc whose center is fixed to the shaft is inserted into the inner circumferential groove of the housing, and the disc is sealed by a sealing member. While sealing between the inner circumferential groove and the inner circumferential groove, a semi-annular rotary piston provided around the disk over a predetermined angular range is housed in the housing, and the rotary piston is fixed to the outer circumference of the disk, and A partition valve extending in the cross-sectional direction of the housing partitions a chamber in the housing, and the partition valve crosses the housing. Direction is movably guided from a chamber in the housing to a retracted position, and suction ports and exhaust ports of the housing are formed at positions on both sides of the partition valve, and the head end of the cylinder and the housing are formed by pipes. The pipe is provided with an opening / closing valve near the head end of the cylinder, and an ignition plug is provided on the pipe at a position between the opening / closing valve of the pipe and the inlet of the housing. The sluice valve, the on-off valve, and the ignition plug are controlled by a control mechanism such as an interlocking cam mechanism, the air-fuel mixture at the head end of the cylinder is introduced into the pipe, and compressed in the pipe, and then the The spark plug burns and expands the air-fuel mixture in the pipe, ejects it into the housing, and A rotary piston engine, wherein the rotary piston is propelled to rotate the rotary piston along the housing.