Global Patent Index - EP 0974743 A1

EP 0974743 A1 2000-01-26 - Lubrication system of reciprocating piston type compressor for engine supercharging

Title (en)

Lubrication system of reciprocating piston type compressor for engine supercharging

Title (de)

Schmierungssystem für einen Kolbenverdichter einer aufgeladenen Brennkraftmaschine

Title (fr)

Systéme de lubrification d'un compresseur à piston d'un moteur à combustion

Publication

EP 0974743 A1 (EN)

Application

EP 99113867 A

Priority

JP 20555698 A

Abstract (en)

To obtain accurate lubrication of a reciprocating piston type compressor for supercharging without affecting the operation of an engine oil pump, using engine lubricating oil. A lubricating oilway 89 for the compressor is branched off from a lubricating oilway 87 for an engine E fitted with an oil pump P1. A downstream end of this branched oilway 89 opens into an annular groove 77 connected to an operating chamber 37 of the inner surfaces of a pump cylinder body 20 of the reciprocating piston type compressor C for supercharging. A second oil pump P2 for supplying some of the lubricating oil flowing in the lubricating oilway 87 for the engine to the pump cylinder body 20 side, and having a smaller capacity than the oil pump P1, is fitted into the lubricating oilway 89 for the compressor. <IMAGE>

IPC 1-7 (main, further and additional classification)

F02B 39/14

IPC 8 full level (invention and additional information)

F02B 33/02 (2006.01); F01M 1/02 (2006.01); F01M 11/02 (2006.01); F02B 39/14 (2006.01)

CPC (invention and additional information)

F02B 39/14 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR IT

DOCDB simple family

EP 0974743 A1 20000126; EP 0974743 B1 20030312; DE 69905809 D1 20030417; DE 69905809 T2 20030904; JP 2000038925 A 20000208