CN118481823A

CN118481823A - Reciprocating piston engine

Info

Publication number: CN118481823A
Application number: CN202410779101.7A
Authority: CN
Inventors: 吴泽法
Original assignee: Harbin Zongheng Municipal Engineering Co ltd
Current assignee: Harbin Zongheng Municipal Engineering Co ltd
Priority date: 2024-06-17
Filing date: 2024-06-17
Publication date: 2024-08-13

Abstract

A reciprocating piston engine belongs to the technical field of engines. The problem of engine vibration and noise can be effectively solved, and simultaneously the oil consumption can be reduced. The shell is internally provided with a rotor cavity matched with the female rotor and the male rotor, the female rotor and the male rotor synchronously rotate through a transmission mechanism, the female rotor and the male rotor drive a piston driver to operate through the transmission mechanism, the piston driver is connected with a piston to drive the piston to reciprocate in a linear motion, and the piston driver is arranged in the shell. Because the pistons of the engine of the present invention do not work, noise and vibration problems are greatly reduced. The invention adopts the mode of rotor axial movement and power transmission, can effectively reduce energy consumption, has simple structure, can reduce production cost and prolong service life.

Description

Reciprocating piston engine

Technical Field

The invention belongs to the technical field of engines, and particularly relates to a reciprocating piston engine.

Background

A reciprocating piston engine, a heat engine (as well as pneumatic and hydraulic reciprocating engines), operates on the principle of converting pressure into rotational kinetic energy using one or more reciprocating pistons. Reciprocating engines are mainly composed of cylinders, pistons, crankshafts, connecting rods, valves, etc., and typically utilize natural gas, diesel, propane, or even gasoline combustion to generate pressure. Its operating process is commonly referred to as a four-stroke cycle, including an intake stroke, a compression stroke, a combustion stroke, and an exhaust stroke.

However, the existing reciprocating piston engines suffer from several disadvantages:

1. the structure is complex: reciprocating piston engines are relatively complex in construction and contain many components such as cylinders, pistons, crankshafts, connecting rods, valves, and the like. This makes the manufacturing and maintenance costs of the engine relatively high.

2. The noise is large: reciprocating piston engines produce relatively loud noise during operation, especially during high speed driving conditions. This is detrimental to the ride comfort and environmental performance of the vehicle.

3. The vibration is large: a large vibration is generated due to the reciprocating motion of the piston in the cylinder. Such vibrations not only make the engine noisier, but also cause great damage to the entire vehicle.

4. The oil consumption is large: reciprocating piston engines are relatively low energy efficient and consume relatively large amounts of fuel. This is mainly due to the fact that the engine has more friction and heat losses during operation.

Disclosure of Invention

The invention aims to solve the problems, and further provides a reciprocating piston engine with a simple structure, which can effectively improve the problems of engine vibration and noise and reduce oil consumption.

The technical scheme adopted by the invention is as follows:

a reciprocating piston engine comprises a shell, a female rotor, a male rotor, a piston and a piston driver; the shell is internally provided with a rotor cavity matched with the female rotor and the male rotor, the female rotor and the male rotor synchronously rotate through a transmission mechanism, the female rotor and the male rotor drive a piston driver to operate through the transmission mechanism, the piston driver is connected with a piston to drive the piston to reciprocate in a linear motion, and the piston driver is arranged in the shell.

Compared with the prior art, the invention has the following beneficial effects:

because the pistons of the engine of the present invention do not work, noise and vibration problems are greatly reduced. The invention adopts the mode of rotor axial movement and power transmission, can effectively reduce energy consumption, has simple structure, can reduce production cost and prolong service life.

Drawings

FIG. 1 is a schematic view of the structure of the present invention (without a housing);

FIG. 2 is a front view of the present invention (without the housing);

FIG. 3 is a schematic diagram of the completion of the suction stroke of the present invention;

FIG. 4 is a schematic representation of the completion of the compression stroke of the present invention;

FIG. 5 is a schematic diagram of the completion of a power stroke of the present invention;

FIG. 6 is a schematic diagram of the completion of the exhaust stroke of the present invention;

FIG. 7 is a side view of the piston driver of the present invention;

FIG. 8 is a schematic diagram of the closing of the piston and air intake switch of the present invention;

FIG. 9 is a schematic illustration of the piston and intake opening and closing of the present invention;

FIG. 10 is a side view of the female rotor of the present invention;

FIG. 11 is a side view of the male rotor of the present invention;

FIG. 12 is an overall side view of the present invention;

FIG. 13 is a schematic view of a rotor cavity of the housing of the present invention;

FIG. 14 is a schematic view of a transmission mechanism of the present invention;

Wherein: 1. a female rotor; 101. an arc-shaped groove; 2. a gear A; 3. a gear B; 4. a male rotor; 401. arc-shaped bulges; 5. a cross beam; 501. crossing; 6. a gear C; 7. a piston driver; 701. a circular counterweight; 702. a connecting shaft; 703. semicircular balance weights; 704. a hanging piece; 8. a piston; 801. an air inlet; 9. a gear D; 10. a housing; 1001. a rotor cavity; 1002. a combustion chamber; 1003. an air outlet channel; 11. an air inlet switch; 12. a cylinder barrel; 13. and a gear E.

Detailed Description

For a better understanding of the objects, structures and functions of the present invention, reference should be made to the following detailed description of the invention with reference to the accompanying drawings.

As shown in fig. 1 to 14, the present invention provides a reciprocating piston engine, comprising a housing 10, a female rotor 1, a male rotor 4, a piston 8 and a piston driver 7; the shell 10 is internally provided with a rotor cavity 1001 matched with the female rotor 1 and the male rotor 4, the female rotor 1 and the male rotor 4 synchronously rotate through a transmission mechanism, the female rotor 1 and the male rotor 4 drive a piston driver 7 to operate through the transmission mechanism, the piston driver 7 is connected with a piston 8 to drive the piston 8 to reciprocate in a linear motion, and the piston driver 7 is arranged in the shell 10.

As shown in fig. 1, the transmission mechanism comprises a gear A2, a gear B3, a gear C6 and a gear D9; the gear A2 is in meshed connection with the gear B3, the gear C6 is in meshed connection with the gear B3, and the gear D9 is in meshed connection with the gear C6 or the gear D9 is in meshed connection with the gear A2.

As shown in fig. 1 and 2, the female rotor 1 and the male rotor 4 are tangentially arranged, an arc groove 101 is formed in the outer circumferential surface of the female rotor 1, an arc protrusion 401 matched with the arc groove 101 is formed in the outer circumferential surface of the male rotor 4, the female rotor 1 is coaxially arranged with the gear A2, the male rotor 4 is coaxially arranged with the gear B3, when the arc groove 101 of the female rotor 1 is intersected with the arc protrusion 401 of the male rotor 4, a closed space is formed among the lower end of the female rotor 1, the lower end of the male rotor 4 and a rotor cavity 1001 of the housing 10, the closed space is used as a combustion chamber 1002, a spark plug and a fuel injector are arranged, the fuel injector can also be arranged at an air inlet pipe, and an air outlet channel 1003 is formed at the upper end of the rotor cavity 1001 of the housing 10.

As shown in fig. 1,2 and 7, the piston driver 7 comprises two groups of driving components respectively mounted on a gear C6 and a gear D9; each group of driving components comprises a semicircular counterweight 703, a connecting shaft 702 and two circular counterweights 701; the semicircular balance weight 703 and the two circular balance weights 701 are mounted on the gear C6 or the gear D9 through a connecting shaft 702, and the semicircular balance weight 703 is concentrically arranged between the two circular balance weights 701.

As shown in fig. 1 and fig. 2, the piston 8 is vertically disposed below the female rotor 1, two sets of driving components are respectively disposed at left and right sides of the piston 8, the piston 8 is lapped on the semicircular counterweight 703 through the cross beam 5, a hanging member 704 is disposed at one end of a straight edge of the semicircular counterweight 703, the cross beam 5 is disposed in a gap between the hanging member 704 and the circular counterweight 701, the hanging member 704 is a small protrusion, and a through hole 501 of the hanging member 704 is formed on a side surface of the cross beam 5, which is close to the hanging member 704.

As shown in fig. 1, 8 and 9, the piston 8 is a straight pipe, the middle part of the straight pipe is fixed with a cross beam 5, the top of the straight pipe is closed, an air inlet 801 is formed, an air inlet switch 11 is mounted on the air inlet 801, and the bottom end of the straight pipe is communicated with an air inlet pipe.

As shown in fig. 13, the upper and lower ends of the piston 8 are respectively provided with a cylinder 12, the cylinder 12 at the upper end is connected with the outer wall of the rotor chamber 1001 of the housing 10, and the cylinder 12 at the lower end is installed in the housing 10 and passes through the housing 10 to be connected with the air inlet pipe.

Piston rings are arranged on the outer side surfaces of the upper end and the lower end of the piston 8, and the two piston rings are arranged in the corresponding cylinder barrels 12.

As shown in fig. 14, when the gear D9 is engaged with the gear C6, the gear C6 may also be engaged with the gear D9 through the gear E13.

The invention is provided with a female rotor 1 and a male rotor 4, a shell 10 matched with the rotors is arranged outside the two rotors, the female rotor 1 drives a gear A2 to rotate, and the gear A2 drives the male rotor 4 to rotate through a gear B3, so that the two rotors synchronously rotate.

The shell 10 is provided with an exhaust port, a spark plug, an oil sprayer, a cylinder barrel 12 and a cylinder barrel 12 respectively arranged at two ends of the piston 8, the middle part of the piston 8 is provided with a cross beam 5, a gear C6 and a gear D9 on the piston driver 7 synchronously rotate with a gear A2 and a gear B3, the piston driver 7 rotates consistent with the female rotor 1 and the male rotor 4, the piston 8 is hollow, the top end of the piston 8 is provided with an automatic air inlet switch 11, the other end of the piston 8 is connected with the cylinder barrel 12, and the cylinder barrel 12 is connected with an air inlet pipe.

The female rotor 1 and the male rotor 4 are matched and synchronously rotated, and drive the piston driver 7 to rotate, the piston driver 7 drives the piston 8 to reciprocate in a linear motion (the piston 8 reciprocates in a linear motion once every rotation of the rotor, but stops at half of the time, and the time 1/4 is the air suction time and the time 1/4 is the compressed air).

When the female rotor 1 and the male rotor 4 rotate to form a closed space with the shell 10, air compressed by the piston 8 is just compressed into the space and ignites the space to form a combustion chamber 1002, when gas in the combustion chamber 1002 burns and expands to push the rotor to rotate to work, the piston 8 is still until the arc-shaped groove 101 of the female rotor 1 completely rotates to the top end of the piston 8, the piston driver 7 drives the piston 8 to start an air suction stroke, when the air suction stroke of the piston 8 is completed, the compression stroke is completed, work starts to be done, (the piston 8 only sucks and compresses the gas but does not work, and the rotor functions are air discharge and work).

The spark plug is arranged at the position of the combustion chamber 1002, and the oil injector can be arranged at the position of the combustion chamber 1002 or at the air inlet passage, so that the problems of noise and vibration are greatly reduced because the piston 8 of the engine does not participate in the work. Because the rotor moves axially during work, the work point is arranged on the periphery of the rotor, and the torque force is increased according to the lever principle, and the larger the radius is, the larger the torque force is, so that the energy consumption is not required to be increased when the torque force is increased.

Piston driver 7:

the function of the suspension 704 on the piston driver 7 is to pull the piston 8 during the suction stroke, while the function of the semicircular weights 703 is to compress the gas and keep the piston 8 stationary during the engine work.

And (2) a piston 8: no piston ring at both ends,

A cylinder block: the cylinder block is arranged in the shell 10, and a cylinder barrel 12 matched with the piston 8 is arranged in the cylinder block.

Lubricating oil pool: is arranged below the engine, and the lubricating oil is sent to the bearings, the piston driver 7 and other parts by an oil pump.

The reciprocating piston engine may also employ compression ignition combustion.

It will be understood that the application has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the application. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the application without departing from the essential scope thereof. Therefore, it is intended that the application not be limited to the particular embodiment disclosed, but that the application will include all embodiments falling within the scope of the appended claims.

Claims

1. A reciprocating piston engine characterized by: comprises a shell (10), a female rotor (1), a male rotor (4), a piston (8) and a piston driver (7); the novel rotary electric machine is characterized in that a rotor cavity (1001) matched with the female rotor (1) and the male rotor (4) is arranged in the shell (10), the female rotor (1) and the male rotor (4) synchronously rotate through a transmission mechanism, the female rotor (1) and the male rotor (4) drive a piston driver (7) to operate through the transmission mechanism, the piston driver (7) is connected with a piston (8) to drive the piston (8) to reciprocate in a straight line, and the piston driver (7) is arranged in the shell (10).

2. A reciprocating piston engine as defined in claim 1, wherein: the transmission mechanism comprises a gear A (2), a gear B (3), a gear C (6) and a gear D (9); the gear A (2) is in meshed connection with the gear B (3), the gear C (6) is in meshed connection with the gear B (3), and the gear D (9) is in meshed connection with the gear C (6) or the gear D (9) is in meshed connection with the gear A (2).

3. A reciprocating piston engine as claimed in claim 2, wherein: the female rotor (1) and the male rotor (4) are tangentially arranged, an arc-shaped groove (101) is formed in the outer circumferential surface of the female rotor (1), an arc-shaped protrusion (401) matched with the arc-shaped groove (101) is arranged on the outer circumferential surface of the male rotor (4), the female rotor (1) and the gear A (2) are coaxially arranged, the male rotor (4) and the gear B (3) are coaxially arranged, when the arc-shaped protrusion (401) of the arc-shaped groove (101) of the female rotor (1) is intersected with the arc-shaped protrusion (401) of the male rotor (4), a closed space is formed among the lower end of the female rotor (1), the lower end of the male rotor (4) and a rotor cavity (1001) of the housing (10), the closed space is used as a combustion chamber (1002), a spark plug and a fuel injector are arranged, the fuel injector can be further arranged at the position of a gas inlet pipe, and a gas outlet channel (1003) is formed at the upper end of the rotor cavity (1001) of the housing (10).

4. A reciprocating piston engine as defined in claim 1, wherein: the piston driver (7) comprises two groups of driving components which are respectively arranged on the gear C (6) and the gear D (9); each group of driving components comprises a semicircular counterweight (703), a connecting shaft (702) and two circular counterweights (701); the semicircular balance weights (703) and the two circular balance weights (701) are arranged on the gear C (6) or the gear D (9) through a connecting shaft (702), and the semicircular balance weights (703) are concentrically arranged between the two circular balance weights (701).

5. A reciprocating piston engine as defined in claim 4, wherein: the piston (8) is vertically arranged below the female rotor (1), two groups of driving components are respectively arranged on the left side and the right side of the piston (8), the piston (8) is lapped on the semicircular counterweight (703) through the cross beam (5), a hanging piece (704) is arranged at one end of the straight edge of the semicircular counterweight (703), the cross beam (5) is arranged in a gap between the hanging piece (704) and the circular counterweight (701), and a through opening (501) of the hanging piece (704) is formed in the side face, close to the hanging piece (704), of the cross beam (5).

6. A reciprocating piston engine as defined in claim 5, wherein: the piston (8) is a straight pipe, the middle part of the straight pipe is fixedly provided with a cross beam (5), the top of the straight pipe is closed, an air inlet (801) is formed, an air inlet switch (11) is arranged on the air inlet (801), and the bottom end of the straight pipe is communicated with the air inlet pipe.

7. A reciprocating piston engine as defined in claim 6, wherein: the upper end and the lower end of the piston (8) are respectively provided with a cylinder barrel (12), the cylinder barrel (12) at the upper end is connected with the outer wall of the rotor cavity (1001) of the shell (10), and the cylinder barrel (12) at the lower end is arranged in the shell (10) and penetrates through the shell (10) to be connected with an air inlet pipe.

8. A reciprocating piston engine as defined in claim 7, wherein: piston rings are arranged on the outer side surfaces of the upper end and the lower end of the piston (8), and the two piston rings are arranged in corresponding cylinder barrels (12).

9. A reciprocating piston engine as claimed in claim 2, wherein: when the gear D (9) is in meshed connection with the gear C (6), the gear C (6) can also be in meshed transmission connection with the gear D (9) through the gear E (13).