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Patent Searching and Data


Title:
SCROLL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2017/203923
Kind Code:
A1
Abstract:
A scroll compressor according to the present invention can suppress seizing at the sliding surface between an Oldham coupling and a movable scroll, and has high reliability. The scroll compressor (101) is equipped with a movable scroll (26) having first key grooves (26d), a housing (23) having second key grooves (23d), and an Oldham coupling (39) between the movable scroll (26) and the housing (23). The Oldham coupling (39) has an annular main body part (39a), two pairs of first key parts (39b) fitted into the first key grooves (26d), and a second key part (39c) fitted into the second key grooves (23d). A key gap (70) is formed between the outer peripheral surface of the first key parts (39b) and the inner peripheral surface of the first key grooves (26d). The key gap (70) has a first gap (71) on the inside in the radial direction of the Oldham coupling (39), and a second gap (72) on the outside in the radial direction. The second gap (72) is wider than the first gap (71), and thus is able to retain a larger amount of lubricating oil than the first gap (71).

Inventors:
YOSUKE YOSHINOBU
KAWAMOTO TAKAYUKI
Application Number:
JP2017/016399
Publication Date:
November 30, 2017
Filing Date:
April 25, 2017
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
F04C18/02; F04C29/02
Domestic Patent References:
WO2014051102A12014-04-03
Foreign References:
JP2007023819A2007-02-01
US20150337838A12015-11-26
JPH02161189A1990-06-21
JP2011510209A2011-03-31
Other References:
See also references of EP 3467312A4
Attorney, Agent or Firm:
Shinjyu Global IP (JP)
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