Mitsubishi Heavy Industries Limited

Hiroyoshi Marushima

Makoto Sakaguchi

Hiroyoshi Kochi

Daisuke Tanioka

Chikaya Ito

A zero-governor fitting structure for a gas engine, configured in such a manner that the lower half of a fuel tank for a gasoline engine is utilized as a support box for supporting the zero-governor in which a gas supply inlet pipe and a zero governor can be reliably mounted with vibration and heating of the zero-governor avoided. A zero-governor mounting structure for a gas engine equipped with a zero-governor is provided with a support box fixed to the upper part of the gas engine. The support box is formed as a box having two depths. The zero-governor is supported, through a vibration insulation gasket, on the bottom plate of the shallower depth space of the support box. A gas supply inlet pipe and an elbow joint which is connected to the gas supply inlet pipe and can be bent the direction of the gas flow at a right angle toward the zero-governor are received in the deeper depth space, and the elbow joint is connected to the bottom inlet of the zero-governor.

Zero-governor fitting configuration in gas engine

Providing a gas engine in which the drain oil in the blow-by gas as a lubricant is mixed into the air fuel-gas mixture, the lubricant actively lubricating the bearing surfaces of the wear parts such as the valve seats and valve guides as to the intake-air valve and the exhaust gas valve, so that the lubricating device improves the engine lubricating conditions. A lubrication device for a gas engine thereby a valve gear roomis formed on a cylinder head, including: a blow-by gas discharge pipethrough which the blow-by gas flowing into the valve gear roomis discharged; whereby, an oil mist separatoris arranged at the downstream side of the blow-by gas discharge pipe, the oil mist separator separating the drain oil and the air in the blow-by gas; the outlet regarding the drain oil from the oil mist separator communicates with an oil discharge devicethrough an oil pipe, the an oil discharge device being arranged at an upstream side of a gas mixermixing the fuel gas with the intake air for the engine, the upstream being in relation to the intake air; the outlet regarding the air from the oil mist separator communicates with an air inlet of the air cleanerfor the engine intake air, through a breathing pipe

Lubrication device for gas engine

In this multipurpose engine, a fuel gas evaporated within a fuel tank of the engine is drawn out of the fuel tank and is adsorbed by an adsorbing material, the fuel gas is separated from the adsorbing material, and then the fuel gas separated from the adsorbing material is suctioned into an intake system of the engine by using negative pressure inside the intake system. The adsorbing material is accommodated in a canister, and two connection ports used for connection with the canister are respectively provided at a heat-insulating intake pipe between a carburetor and the engine and at a clear section of an air cleaner.

Growing community of inventors

Kanagawa, Japan

Hiroyoshi Marushima