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Patent Searching and Data

Document Type and Number:
Japanese Patent JPS61237887
Kind Code:

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.

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