Oil supply structure for power unit, and power unit
AssigneeHonda Motor Co., Ltd.
InventorsHiroyuki Sugiura, Noriyuki Suzuki, Kinya Mizuno, Yasushi Fujimoto
Life of this patent
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Abstract
An oil supply structure for a power unit includes a working oil pump, a lubrication oil pump, an oil storage section, a working oil pressure detection part and a lubrication hydraulic pressure detection part, the oil storage section including a lubrication oil storage chamber in which a suction section of the lubrication oil pump is opened, and a working oil storage chamber in which a suction section of the working oil pump is opened, and oil overflowed from the working oil storage chamber being stored in the lubrication oil storage chamber.
Claims13
An oil supply structure for a power unit comprising:
- an engine;
- a transmission configured to change an output of the engine;
- a hydraulic clutch interposed between the engine and the transmission, and configured to cut off and connect power between the engine and the transmission;
- a working oil passage configured to supply oil into the hydraulic clutch;
- a working oil pump configured to pump oil into the working oil passage;
- a lubrication oil passage configured to lubricate movable parts in a power unit case;
- a lubrication oil pump configured to pump oil into the lubrication oil passage;
- an oil storage section configured to store oil returned from the working oil passage and the lubrication oil passage and pumped from the working oil pump and the lubrication oil pump;
- a working oil pressure detection part configured to detect a decrease in pressure of the oil in the working oil passage to a predetermined value or less and output an alarm signal;
- and
- a lubrication hydraulic pressure detection part configured to detect a decrease in pressure of the oil in the lubrication oil passage to a predetermined value or less and output an alarm signal,
- wherein the oil storage section comprises a lubrication oil storage chamber in which a suction section of the lubrication oil pump is opened, and a working oil storage chamber in which a suction section of the working oil pump is opened, and
- wherein oil overflowed from the working oil storage chamber is stored in the lubrication oil storage chamber.
Dependencies are inferred from the claim text.