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Patent Searching and Data


Title:
VARIABLE DISPLACEMENT COMPRESSOR
Document Type and Number:
Japanese Patent JPS61145379
Kind Code:
A
Abstract:

PURPOSE: To perform a displacement control while preventing working fluid from being heated, by both providing an oil pump in the shaft of a swash plate type compressor and operating this oil pump with its delivery pressure acting on the other end of a sleeve urging its one end by a spring and connecting with a tilt plate.

CONSTITUTION: If the pressure in a suction pressure chamber 45 decreases while a swash plate type compressor is in operation, a diaphragm 41 in a displacement control valve extends by action of a spring 46, and a valve unit 40 is detected from a valve seat 39. In this way, delivery oil of an oil pump 28, formed on a driving shaft 5, is allowed to flow into a pressure chamber 13 through a small hole 38, valve hole and an oil passage 32. The pressure chamber 13 is both arranged on the driving shaft and formed in a rotary part 8 by a flange 11a in one end side of a sleeve 11 connected with a tilt turning lever 18 of a swash plate 16, and the pressure chamber, if its pressure increases to a high level, decreases a tilt angle of the swash plate by moving the sleeve leftward.


Inventors:
NISHIZAWA KAZUTOSHI
TAKAGI MASASHI
MATSUOKA AKIO
Application Number:
JP26711984A
Publication Date:
July 03, 1986
Filing Date:
December 17, 1984
Export Citation:
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Assignee:
NIPPON DENSO CO
International Classes:
F04B27/14; F04B25/04; (IPC1-7): F04B25/04
Attorney, Agent or Firm:
Takashi Okabe