Title:
VANE-TYPE COMPRESSOR
Document Type and Number:
Japanese Patent JP2019056314
Kind Code:
A
Abstract:
To stably supply backpressure to a backpressure chamber while reducing excess backpressure.SOLUTION: A high-pressure supply groove 123 and an intermediate-pressure supply groove 128 are formed at an opposing face 126 of a rear side plate 120. A spiral groove 452 is formed at an external peripheral face of a rotating shaft 150. A first oil passage 124 for making a discharge chamber 50 and the high-pressure supply groove 123 communicate with each other, and a second oil passage 134 including a clearance between the spiral groove 452 and the rear side plate 120, and making the discharge chamber 50 and the intermediate-pressure supply groove 128 communicate with each other are formed. A lubricant stored in the discharge chamber 50 is decompressed more than that in the first oil passage 124 by passing the second oil passage 134, and supplied to the intermediate-pressure supply groove 128.SELECTED DRAWING: Figure 1
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Inventors:
MATSUDA KUNIHISA
NAGANO HIROKI
HATTORI YUYA
MORI TATSUSHI
NAGANO HIROKI
HATTORI YUYA
MORI TATSUSHI
Application Number:
JP2017180257A
Publication Date:
April 11, 2019
Filing Date:
September 20, 2017
Export Citation:
Assignee:
TOYOTA IND CORP
International Classes:
F04C18/344; F04C29/00; F04C29/12
Attorney, Agent or Firm:
Fukami patent office