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Patent Searching and Data


Title:
COMBINATION PUMP
Document Type and Number:
Japanese Patent JP2003027912
Kind Code:
A
Abstract:

To provide an integrated combination pump capable of adjusting the basic oil discharge pressure by a vane type variable displacement pump while ensuring the basic oil discharge pressure by a power pump driven by the driving force of the engine.

The combination pump 1 comprises a cycloid pump 2 as a first pump and a vane pump 9 as a second pump, and a pump housing is shared. The cycloid pump 2 uses the driving force of a crankshaft, and the vane pump 9 uses the driving force of the cycloid pump 2. The maximum capacity of the first pump can be reduced thereby, and adequate oil discharge pressure and adequate oil discharge quantity is ensured by operating the vane pump 9 as an auxiliary pump in an operation range in which the oil discharge pressure only by the first pump is insufficient.


Inventors:
Suzumori, Kiichiro
Takahara, Toshihiro
Application Number:
JP2001000214451
Publication Date:
January 29, 2003
Filing Date:
July 13, 2001
Export Citation:
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Assignee:
TOYODA SPINNING & WEAVING CO LTD
DENSO CORP
International Classes:
F01M1/02; F01M1/16; F04B23/12; F04C2/10; F04C2/344; F04C2/356; F04C11/00; F04C14/02; F04C14/22; F01M1/12; (IPC1-7): F01M1/02; F01M1/16; F04B23/12; F04C2/10; F04C2/344; F04C2/356; F04C11/00; F04C15/04
Attorney, Agent or Firm:
服部 雅紀