CN2732998Y - H type concave three lobe rotor piston engine - Google Patents

Abstract

An H-shaped concave triangular rotor piston engine, which includes a cylinder and a triangular rotor. The side of the triangular rotor is H-shaped, and the inner concave arc surface of the planetary track is between two adjacent corners. The first half of the arc surface has a groove , there is an elastic sealing piece at the convex part of the cylinder, the front end of one of the sealing pieces is the combustion chamber, the rear end is equipped with a one-way exhaust valve and communicated with the oil inlet pipeline, the front end of the other sealing piece is the suction port, and the rear end is for the exhaust port. The utility model is equipped with a sealing sheet between the exhaust port and the suction port to prevent oil vapor from being discharged with the exhaust gas; when the combustion chamber is ignited, the rear half of the concave arc surface of the rotor pushes open the one-way exhaust valve, and the This part does negative work to release the pressure and discharge the oil vapor back into the oil inlet system. In the case of the same exhaust volume and compression ratio, the fuel consumption is reduced by 46%, the exhaust emission is reduced by 51%, the maximum torque and power are increased by 2.6 times, the weight and volume are reduced by 2/3, and the cost is reduced by 1/4. The service life is doubled.

Description

A H-type concave triangular rotor piston engine

technical field

The utility model relates to an engine, in particular to an H-shaped concave triangular rotor piston engine.

Background technique

At the Tokyo Motor Show in November 2001, the RX8 sports car, known as the world's unique convex triangular rotor engine configuration, was exhibited. The output power of this kind of engine is high, but because there will be an instant connection between the suction port and the exhaust port in each working cycle of the rotor, the oil vapor entering will be discharged with the exhaust gas, resulting in an increase in fuel consumption and damage to the engine. Air pollution; or let the exhaust gas that should be discharged enter the intake port, reduce the ratio of oil and gas, and affect the efficiency of the engine. Secondly, due to the linear contact between the sealing plate on the rotor and the cylinder inner wall, scraping on the cylinder inner wall like three sharp knives, there will be wavy vibration pattern wear on the cylinder inner wall soon, so that the service life of the cylinder is short.

Contents of the invention

The purpose of this utility model is to provide a new type of engine, which can overcome the shortcomings of the prior art, reduce fuel consumption, and secondly increase the service life.

The purpose of this utility model is achieved in the following way: it includes a cylinder and a triangular rotor, the inner chamber of the cylinder has two protrusions, and the corner end of the triangular rotor is provided with an elastic sealing piece, which is characterized in that the side of the triangular rotor is H-shaped, and its Between two adjacent corners is the concave arc surface of the planetary track, the front half of the arc surface has a groove, and the inner convex part of the cylinder is provided with an elastic sealing sheet, and the front end of one sealing sheet is the combustion chamber, and the rear end is equipped with The one-way exhaust valve communicates with the oil inlet pipeline, and the front end of the other sealing sheet is the suction port, and the rear end is the exhaust port.

The above-mentioned structure of the utility model has the following advantages: because a sealing sheet is installed between the exhaust port and the suction port, oil vapor is prevented from being discharged along with the exhaust gas; the inner concave arc surface on the rotor lengthens the arm of the rotor; At the moment when the combustion chamber is ignited, the second half of the concave arc surface of the rotor is driven by high pressure to open the one-way exhaust valve, releasing the pressure of this part of the negative work and discharging the oil vapor back into the oil system. Therefore, in the case of the same displacement, compression ratio and spindle speed, the fuel consumption of the utility model is reduced by 46%, the exhaust emission is reduced by 51%, the maximum torque and power are increased by 2.6 times, and the weight and volume are reduced by 2/ 3. The cost is reduced by 1/4, and the service life is doubled.

Description of drawings

Fig. 1 is a sectional view of the utility model.

Fig. 2 is a side sectional view of the utility model.

FIG. 3 is an enlarged view of the side seal shown in FIGS. 1 and 2 .

Fig. 4 is a view from direction A in Fig. 3 .

FIG. 5 is a cross-sectional view of a groove on the rotor shown in FIG. 1 .

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.

1 is crankshaft among Fig. 2, and bearing 9 is installed on crankshaft, and external gear 2 and rotor 7 are housed, internal gear 3 is fixedly connected with rotor and meshes with external gear 2, and 8 is flywheel, and 4 is cylinder. It can be seen from the figure that the side of the rotor is H-shaped, and the middle part is the working surface of the rotor. The sealing strip 12 and the wave spring 13 shown in Fig. 3 and Fig. 4 are installed at both ends of the working surface of the cylinder.

It can be seen from Figure 1 that the cross-section of the working section of the H-type rotor 7 is a concave triangle, that is, between two adjacent corners of the triangle is a concave arc surface composed of planetary trajectories, and at the same time, there is an opening on the first half of the arc surface. In the groove 5 shown in FIG. 5 , the three vertices of the rotor 7 are provided with sealing sheets 11 and wave springs 12 for realizing elastic expansion and contraction of the sealing sheets. In order to reduce scratches on the inner wall of the cylinder, the contact surface of the sealing plate is designed as an arc surface, and the contact surface with the cylinder is an arc surface. The inner wall of the cylinder 4 has two symmetrically arranged inner protrusions, a seal is provided at the protrusion, and a sealing sheet 11 and a spring 12 are installed. The front end of the sealing sheet at the upper protrusion K in the figure is a combustion chamber, and a spark plug 14 is installed. , the rear end has a through hole, and a one-way exhaust valve 6 is installed. The front end of the lower protrusion Q is an air intake, and the rear end is an exhaust port.

Claims (2)

1. An H-type concave triangular rotor piston engine, which includes a cylinder and a triangular rotor. The inner cavity of the cylinder has two protrusions, and the corner end of the triangular rotor is provided with an elastic sealing sheet. It is characterized in that the side of the triangular rotor is H-shaped. , between the adjacent two corners is the concave arc surface of the planetary trajectory, the first half of the arc surface has a groove, and the inner convex part of the cylinder is provided with an elastic sealing sheet, and the front end of one of the sealing sheets is the combustion chamber and the rear end A one-way exhaust valve is installed and communicated with the oil inlet pipeline. The front end of the other sealing plate is the suction port and the rear end is the exhaust port. 2. The engine according to claim 1, characterized in that the contact surface of the sealing plate is an arc surface, and the contact surface with the cylinder is an arc surface.

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