System for driving engine accessories of internal combustion engine
AssigneeNissan Motor Co., Ltd.
InventorsTakashi Suga, Shigeru Kamegaya
Life of this patent
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Abstract
A hydraulic pump is mounted to a cylinder block of an internal combustion engine and powered by said engine, and a hydraulic motor for operating an engine accessory, such as alternator, compressor of air conditioner and the like, is mounted to the cylinder block and driven by a highly pressurized oil fed by the hydraulic pump. The cylinder block is formed with an oil flow passage through which the highly pressurized oil is conveyed from the hydraulic pump to the hydraulic motor. An oil return passage is provided for returning the oil from the hydraulic motor to the hydraulic pump. If desired, the oil return passage may be defined in the cylinder block.
Claims16
An engine accessory driving system for use with an internal combustion engine having a cylinder block, comprising:
- a hydraulic pump mounted to said cylinder block and powered by said engine;
- a hydraulic motor mounted to said cylinder block and driven by a highly pressurized oil fed by said hydraulic pump;
- means defining in said cylinder block an oil flow passage through which said highly pressurized oil is conveyed from said hydraulic pump to said hydraulic motor;
- and
- oil returning means for returning the oil from said hydraulic motor to said hydraulic pump.
An engine accessory driving system for use with an internal combustion engine having a V-type cylinder block;
- a hydraulic pump mounted on a bottom of a V-shaped recess which is defined by and between the two banks of said V-type cylinder block, said hydraulic pump being powered by said engine;
- first and second hydraulic motors respectively mounted to the two banks of said cylinder block, each hydraulic motor being driven by a highly pressurized oil fed by said hydraulic pump;
- means for defining in said cylinder block respective oil flow passages through which said highly pressurized oil is conveyed from said hydraulic pump to said first and second hydraulic pumps independently;
- and
- oil returning means for conveying the oil from said first and second hydraulic motors to said hydraulic pump.
Dependencies are inferred from the claim text.