RU2619516C1 - Piston engine - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: engine contains cylinder block, connecting rod and piston groups working for the main crank shaft, gas distribution systems including self-acting valves, receiver and pipeline system. Additionally the cylinder block comprises of, at least, one pressure cylinder and one expansion cylinder with, at least, one normally open self-acting valve and exhaust windows. The pressure cylinder is communicated with the expansion cylinder through a receiver over the pipeline system. Wherein, the receiver is additionally linked to a high-pressure bottle through a regulator valve.

EFFECT: allows effective and reliable functioning of power units in vehicles with ecologically clean exhaust.

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Description

The invention relates to mechanical engineering and can be used mainly as a power plant for vehicles with environmentally friendly exhaust.

The prior art analogues are known: piston expander-compressor unit, patent RU No. 2134850 from 08.20.1999; piston air motor, patent RU No. 2330962 from 08/10/2008; Piston engine, patent RU No. 2302543 dated 07/10/2007, selected as a prototype, consisting of a cylinder block, the corresponding number of crank-piston groups working on a common crankshaft, a gas distribution mechanism, for example, a valve type, a fuel supply system, lubrication systems, cooling and ignition, combustion chambers, gas duct systems, receiver, heat exchanger.

The main disadvantage of the known technical solutions is that they do not provide an environmentally friendly exhaust.

The technical result of the present invention is to eliminate this drawback, creating an effective, simple and reliable design of a piston engine running on compressed air and suitable for use as a power plant of a vehicle with environmentally friendly exhaust.

The specified technical result is achieved by the fact that in the proposed piston engine, consisting of a cylinder block, connecting rod and piston groups working on a common crankshaft, a gas distribution system including self-acting valves, receivers, piping systems, according to the claimed technical solution, the cylinder block contains at least one discharge cylinder and one expansion cylinder with at least one normally open self-acting valve and exhaust windows, a discharge cylinder with Stem pipelines in communication with an expansion cylinder through the receiver, wherein the receiver is further coupled to the high pressure cylinder through the pressure reducing valve.

The drawing shows a schematic diagram of the proposed piston engine.

The piston engine contains a cylinder block 1, in which a discharge cylinder 2 and an expansion cylinder 3 with a normally open intake valve 4 and exhaust windows 5, a crankshaft 6 with connecting rod-piston groups attached to it, a piping system 7 connecting the discharge and expansion cylinder through receiver 8, and an attached high-pressure cylinder 9 through a pressure reducing valve 10.

Compressed air from a high-pressure cylinder 9 enters the receiver 8, where an overpressure of the order of 0.6-0.8 MPa is maintained using a pressure reducing valve 10. Through the piping system 7 from the receiver 8, compressed air enters the expansion cylinder 3 through a normally open intake valve 4, driving the piston group of the expansion cylinder 3, while creating torque on the crankshaft 6 of the piston engine. The bulk of the moment (about 2/3) taken from the crankshaft 6 is spent on driving the vehicle propulsion device, and the other smaller part (about 1/3) of the moment is taken up by the piston groups of the pressure cylinder 2, setting them in motion, while ensuring compression and movement of atmospheric air into the receiver 8. The compressed air having a higher temperature is mixed in the receiver 8 with the air received through the pressure reducing valve 10 from the high pressure cylinder 9, thereby increasing it energy efficiency. During braking, downhill, coasting of the vehicle, the torque generated by the engine on the crankshaft 6 drives the piston groups of the pressure 2 and expansion cylinders 3, compressing and moving atmospheric air into the receiver 8, which entered the pressure cylinder 2, and also into the expansion cylinder through the exhaust windows 5, thus ensuring its recovery.

A normally open valve can be made with a locking element in the form of a spring-loaded ring with a stopper with the possibility of movement relative to the cylinder cover (see RU No. 11312) suspended on a tension spring (see RU No. 2097576), in the form of elastic elements parallel to the gas flow, and limiters cantilever fixed in the package (see RU No. 388852).

The proposed technical solution allows you to effectively and reliably ensure the operation of the power plants of vehicles with environmentally friendly exhaust.

Claims (1)

A piston engine consisting of a cylinder block, a connecting rod and piston groups working on a common crankshaft, a gas distribution system including self-acting valves, a receiver, a piping system, characterized in that the cylinder block contains at least one discharge cylinder and one expansion cylinder with at least one normally open self-acting valve and exhaust windows, the discharge cylinder is connected by a piping system to the expansion cylinder through the receiver, the receiver being ADDITIONAL associated with the high pressure cylinder through the pressure reducing valve.

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