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Patent Searching and Data


Title:
FLUID MACHINERY
Document Type and Number:
Japanese Patent JPS61237887
Kind Code:
A
Abstract:

PURPOSE: To vary the capacity of the swash plate type fluid machinery by forming a small hole for discharging the working fluid in a cylinder in the course of compression to the low pressure side onto the cylinder head onto which the edge part of the cylinder contacts.

CONSTITUTION: A low-pressure side passage 3A and a high-pressure side passage 3B for fluid are formed onto a cylinerhead 4 onto which the cylinder 9 of the swash-plate type fluid machinery contacts, and a small hole 51 which communicates to the low-pressure side passage 3A through a relief passage 52 is formed between the both flow passages. Since a fluid control valve 50 for controlling the capacity is arranged in the relief passage 52, the working fluid in the course of compression is introduced through bypass into the low- pressure side passage 3A through the small hole 51, so far as the control valve is in opened state, and the capacity of the fluid machinery can be reduced.


Inventors:
Kanamaru, Naonobu
Sasaya, Kazuyuki
Application Number:
JP1985000076458
Publication Date:
October 23, 1986
Filing Date:
April 12, 1985
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
F04B1/20; F04B25/04; F04B27/08; (IPC1-7): F04B1/20; F04B25/04