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Patent Searching and Data


Title:
FEED PUMP USED IN HYDRAULIC SYSTEM
Document Type and Number:
Japanese Patent JPH0712056
Kind Code:
A
Abstract:

PURPOSE: To charge a feed pump at the initial charging of a system, that is, at the 'exchaust charging'.

CONSTITUTION: An annular grooved notch 13 is extended from a chamber 10, a hollow-body ring 14 is fit in the notch 13, the inner diameter of the hollow- body ring 14 is smaller than the outer diameter of a valve closing body 9 in a non-pressure state of a system, and the hollow-body ring 14 receives the action of a hydraulic pressure medium to receive the volume compression expanding its inner diameter.


Inventors:
Merbold, Dirk
Application Number:
JP1994000032308
Publication Date:
January 17, 1995
Filing Date:
March 02, 1994
Export Citation:
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Assignee:
ROBERT BOSCH GMBH
International Classes:
F04B53/10; B60T8/40; B60T17/02; B62D5/06; F04B11/00; F04B49/24; F04C14/24; (IPC1-7): F04B53/10
Attorney, Agent or Firm:
矢野 敏雄 (外2名)