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Title:
TANDEM PUMP UNIT
Document Type and Number:
Japanese Patent JP2001116104
Kind Code:
A
Abstract:

To provide a tandem pump unit having first and second cooperating hydraulic pumps connected to a drive source, and permitting simplification of piping work between a hydraulic motor and each hydraulic pump.

The first and second hydraulic pumps 10a, 10b support a common center section 20. The center section 20 is formed with a pair of first intake/discharge ports 32a and a pair of second intake/discharge ports 32b, the first and second intake/discharge ports 32a, 32b each being outwardly open at one end to serve as connections with a pair of first hydraulic lines and a pair of second hydraulic lines. The center section 20 is also formed with a pair of first oil passages 31a and a pair of second oil passages 31b, the first and second oil passages 31a, 31b communicating with the first and second hydraulic pumps at the other end.


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Inventors:
OHASHI RYOTA
RIZAWA HIRONORI
Application Number:
JP1999000295833
Publication Date:
April 27, 2001
Filing Date:
October 18, 1999
Export Citation:
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Assignee:
KANZAKI KOKYUKOKI MFG CO LTD
International Classes:
B60K17/10; F04B23/06; F16H39/08; (IPC1-7): F16H39/08; B60K17/10; F04B23/06
Attorney, Agent or Firm:
藤本 昇 (外2名)