ENGINE HAVING DISPLACEMENT EXPANDER AS REGENERATOR

WIPO Patent Application WO/2010/128558

A1

An exhaust valve of a displacement expander (an expander) as a regenerator is equipped with a variable valve mechanism, and the opening timing of the exhaust valve is made the later as the intake pressure of the entire engine is made the lower. In a partial state, the gas is once expanded excessively in an expansion chamber and then compressed again, and the exhaust valve is opened at the timing when the internal pressure in the expansion chamber becomes higher than the atmospheric pressure, thereby reducing the pumping loss of the displacement expander. The displacement engine having the regenerator is so highly efficient at the partial time that a gearbox or the like is not needed for the power transmission from the regenerator to the displacement engine. The displacement expander is integrated with a displacement compressor having the continuously variable valve mechanism in an intake valve, as a supercharger, so that the engine output can be controlled by controlling the supercharging pressure, thereby reducing the pumping loss of the displacement engine by a throttle valve. From the viewpoint of improving the mileage, therefore, the displacement engine is particularly applicable to the engine for movers of high frequencies of the partial state.

OOYAMA KAZUO (JP)

PCT/JP2009/058698

November 11, 2010

May 08, 2009

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JOHO CORP (JP)
OOYAMA KAZUO (JP)

F02B41/00; F01B31/00; F02B33/42

JPH0417117U	1992-02-13
JPS489108U	1973-02-01
JPS63215828A	1988-09-08
JPS63285222A	1988-11-22
JPH03242427A	1991-10-29

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