Constant volume type piston rotor engine

Abstract

The invention relates to an isasteric piston rotor engine, wherein a piston rotor is arranged in a cylinder, the piston rotor is consists a piston and a button stem, the piston rotor is respectively connected with a chief shaft and an eccentric shaft by a wheel gearing; the piston divides the cylinder into at least one air chamber, the two ends of the cylinder are sealed by a cylinder cap which is fixed at the cylinder or the piston rotor, an air inlet, an air outlet, an oil injection nozzle and a spark plug are arranged at the cylinder; an air compression device is arranged for providing compressed air for the air chamber; the blast air in the air chamber acts on the piston rotor to cause the rotor to perform circular motion around the eccentric shaft, and power is output by the chief shaft; as the air capacity of the chamber is invariable, the expansion pressure of the high temperature air in the air chamber can not be reduced when working, namely, the discharged working air can be introduced into the air chamber of the duplex type cylinder to work one more time to realize the reutilization of the working air; the engine can be made into an external combustion engine by adding or reducing a relative device.

Description

Technical field [0001] The invention relates to the field of engines, in particular it is a constant-capacity piston-rotary engine. Background technique [0002] At present, the known linear reciprocating (or triangular rotor) piston engines all belong to variable capacity engines. During work, the engine completes its four strokes of air intake, compression, work, and exhaust through the change of the volume of the working air chamber. Among them, only the power stroke outputs power to the outside. When the high-temperature gas pushes the piston to do work, the expansion pressure of the high-temperature gas in the cylinder decreases rapidly due to the rapid expansion of the volume of the cylinder, resulting in insufficient power output. When the power stroke ends, Its high-temperature gas must be discharged before it can enter the next working cycle, and the high-temperature exhaust gas that is about to be discharged can only be converted into harmful noise and wasted. Exi...

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Problems solved by technology

[0003] In order to overcome the problems that the existing engine cannot solve the problem that the expansion pressure of the high-temperature gas is reduced due to the expansion of the volume of the air chamber when it is doing work, and the high-temperature exhaust gas is difficult to make full use of, the invention provides a constant-volume piston-rotary engine , when the engine is doing work, the expansion pressure of the high-temperature gas in the gas chamber will not decrease, and it can be easily introduced into the gas chamber of the engine of the same quality as it to do work again, so as to realize the repeated use of the high-temperature gas in the explosion

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