RU2361088C2 - Rotor-piston engine for vehicles - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: invention is related to power units for vehicles. Rotor-piston engine consists of body with internal surface closed by covers on ends, rotor-piston and mechanism for rotation transfer from rotor-piston to engine shaft. In rotor-piston tops rotor-piston sealants are installed. Inside rotor-piston mechanism is installed for alignment of rotor-piston, including rolling shaft bearing. Rotor-piston is rigidly connected to gear of internal engagement (with internal tooth). Rotor-piston is closed by plates on ends. Mechanism for alignment of rotor-piston also includes external cartridge inside rotor-piston and alignment roller installed between shaft bearing and external cartridge. Mechanism for rotation transfer from rotor-piston to engine shaft is installed inside rotor-piston and consists of gears with skew teeth of different direction. Gear of rotor-piston during engine operation is rolled in centrally located gear of engine shaft. Internal diametre of external cartridge is equal to diametre of separating circumference of rotor-piston gear. Combustion chambers are displaced to the side of rotor-piston rotation.

EFFECT: reduction of radial pressure on tops of rotor-piston and internal surface of body.

8 dwg

Description

The invention is intended as a power plant for public vehicles "VAZ", "ZAZ" and "Volga".

State of the art

As an analog, a rotary piston engine, two-section, with a power of 120 hp, mounted on a VAZ-2109 special-purpose vehicle, is known. The requirements for fuel consumption and motor resources are much lower than for general purpose vehicles.

The profile of the body is an "epitrochoid", mathematically undefined, the rotor-piston is trihedral, with sharp peaks and one radial seal at the peaks.

Combustion chambers are formed between the bases of the rotor and the housing, narrow, located in the center of the top dead center, the surface area is very large, poor combustion conditions, and heat transfer is great. Engine starts poorly at sub-zero temperatures. During the working stroke, the gas pressure is completely transmitted to the tops of the rotor. The engine is prone to vibration. Structurally, with this profile of the housing it is impossible to improve (see the Textbook "Automotive and Tractor Engines" edited by Professor I.M. Lenin, 1969. The chapter "Rotary Piston Engines", which indicates that the inner surface of the housing is made according to a curve called "epitrochoid", etc .; Inomarka Magazine. Nizhny Novgorod issue. July-August 2004 Section "Rotary Anniversary"; Domestic development of the Volga Automobile Plant (VAZ); Automobile Internet newspaper "Seven Versts." Designed by UsN 2002).

Note. Specific characteristics data of analogues, as well as drawings under development by manufacturers are not advertised.

Disclosure of the invention.

A rotary piston engine (in short - RPD with a trihedral rotor-piston), consisting of a housing with an inner surface closed from the ends of the covers, a rotor-piston, at the tops of which there are installed rotor-piston seals, inside of which is located the centering mechanism of the rotor-piston, including the roller bearing of the shaft, and the mechanism for transmitting rotation from the rotor-piston to the motor shaft, while the rotor-piston is rigidly connected to the internal gear (with the inner tooth), characterized in that the rotor-piston is closed from the ends of the plates, The rotor-piston centering mechanism also includes an outer race inside the rotor-piston and a centering roller located between the shaft bearing and the outer race, the rotation transmission mechanism from the rotor-piston to the motor shaft is installed inside the rotor-piston and consists of gears with oblique teeth of different directions, the rotor-piston gear during engine operation is rolled around the centrally located gear of the motor shaft, the inner diameter of the outer race is equal to the diameter of the pitch circle of the gear of the rotor-piston, and the chambers The tanks are biased towards the rotation of the rotor-piston.

The engine is 4-stroke. For one revolution of the rotor-piston, three working strokes occur. The housing of a rotary piston engine acts as a cylinder of a piston engine. Liquid cooling. In a single volume is the receipt of thermal energy and its conversion into the mechanical operation of the motor shaft.

The device of the engine mechanism is illustrated by figures, which depict:

figure 1 is a transverse section of the engine,

figure 2 is a longitudinal section of the engine,

figure 3, 4, 5, 6 - diagram of the rotary piston engine:

figure 3-position I,

figure 4 - position II,

figure 5 - position III,

figure 6 - position IV.

7, 8 - diagrams of the profiles of the housing:

Fig.7 - profile of the author - EPICHORA,

Fig - profile EPITROHOID - WANKEL.

Designation: x and y - coordinate axis. R is the radius of the side generatrix.

Part numbers are repeated in FIG. 3, 4, 5, 6.

The engine consists of the following parts.

Case 1 with an inner surface. At the ends, the housing is closed by covers 2. Inside the housing there is a trihedral rotor-piston 3. The motor shaft 5 passes through the inner surface of the rotor-piston, bearings 9 of the motor shaft are located in the covers 2 of the motor shaft housing. At the ends, the rotor-piston is closed by the plates 4, in the rotor-piston case there is a centering mechanism of the rotor-piston 3 relative to the motor shaft 5; consisting of a roller bearing 7 on a motor shaft 5, a centering sleeve 10 in a rotor-piston housing 3 and a centering shaft 11.

In the rotor-piston case, a rotation transmission mechanism is installed from the rotor-piston 3 to the motor shaft 5, consisting of gears:

gear 8 of the rotor piston,

gear 6 of the engine shaft.

The mechanisms are located inside the housing at the ends, the planetary mechanisms. The shape of the rotor-piston 3 is triangular spherical, double rotor seals 15 (radial) are installed at the tops, rotor seals 14 (end) are installed in the plates 4. Combustion chambers 13, the main volume is located at the bases of the rotor-piston 3 and is shifted towards the rotor rotation.

The timing mechanism is missing. Gas distribution is carried out by the engine elements themselves: the rotor-piston 3 and channels for the intake of energy elements (air, fuel) and exhaust gases.

The channels are located in the housing 1 of the engine. See the general drawing, designation: BC - suction, BX - exhaust.

The centering mechanism of the rotor-piston reduces the radial pressure on the tops of the rotor-piston and the inner surface of the housing, provides synchronization of the position of the rotor-piston relative to the housing and the main circles of the gears. The profile profile of the enclosure (EPITROHOID) does not meet modern requirements.

Work rotary piston engine for cars.

The engine is 4-stroke, the operation scheme is shown in Figs. 3, 4, 5, 6. The position is fixed relative to one point of the rotor vertices and is indicated by the symbols - A, B, C.

The rotor-piston 3 rotates under gas pressure relative to the engine housing 1, four volumes are formed: between the surface of the engine housing 1 and the surface of the rotor-piston 3. The volumes vary from minimum to maximum and in reverse sequence in accordance with the cycles. For one complete revolution of the rotor-piston 3, three complete cycles are performed.

The intake of the working mixture through the channel is aircraft.

The exhaust gas through the channel - VX.

Since the engine performs 12 separate cycles in one revolution, then Figures 3, 4, 5, 6 show the position of the rotor at extreme points along the axes of the engine.

The centering shaft 11 is in the position of figure 3, 4, 5, 6.

The spark plug 12 is located in the engine housing 1, in the position of top dead center - TDC.

Claims (1)

A rotary piston engine, consisting of a housing with an inner surface closed from the ends of the covers, a rotor-piston, at the tops of which there are installed rotor-piston seals, inside of which there is a centering mechanism of the rotor-piston, including a roller bearing of the shaft, and a rotation transmission mechanism from the rotor - a piston to the motor shaft, while the rotor-piston is rigidly connected to the internal gear (with the internal tooth), characterized in that the rotor-piston is closed from the ends of the plates, the centering mechanism of the rotor-piston includes there is also an outer race inside the rotor-piston and a centering roller located between the shaft bearing and the outer race, the rotation transmission mechanism from the rotor-piston to the motor shaft is installed inside the rotor-piston and consists of gears with oblique teeth of different directions, the gear of the rotor-piston the engine runs around the centrally located gear shaft of the engine, the inner diameter of the outer race is equal to the diameter of the pitch circle of the gear of the rotor-piston, and the combustion chambers are shifted in the direction of rotation of the rotor rushnya.

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