Internal-combustion engines – Lubricators – Crankcase – pressure control
Patent
1997-12-08
1999-07-20
Kwon, John
Internal-combustion engines
Lubricators
Crankcase, pressure control
123 73AD, 184 33, F01M 100
Patent
active
059244003
ABSTRACT:
In a portable engine using a fuel gas within a cassette type gas bomb or canister, an engine body is provided with a lubricating oil supply for supplying a lubricating oil from an air intake port side. The supply means has a fixed quantity discharging type lubricating oil pump housed in a separation chamber between a side wall of a crankcase of the body. A recoil starter is disposed beside the side wall and a plunger is directly driven by a crank shaft. A discharge piping system has a throttle tube for controlling a flow amount and communicates between an air intake tube connected to the air intake port and a discharge port of the pump. Furthermore, there is a lubricating oil tank, a suction piping system communicating between the tank and the suction port of the pump, and a return piping system communicating the discharge side of the pump and the tank.
REFERENCES:
patent: 5537980 (1996-07-01), Yamamoto
patent: 5701856 (1997-12-01), Nagano et al.
Kwon John
Mitsubishi Heavy Industries Ltd.
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