Title:
CRANKSHAFT, COMPRESSOR, AND REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/098423
Kind Code:
A1
Abstract:
A crankshaft (100), comprising: a first shaft (110), a second shaft (130), a first crank arm (120), a second crank arm (140) and a recess portion (121). The first crank arm (120) is provided at one end of the first shaft (110), a first oil channel (111) is provided on the first crank arm (120), and the first oil channel (111) penetrates the first shaft (110); the second crank arm (140) is provided at one end of the second shaft (130), a second oil channel (131) is provided on the second crank arm (140), and the second oil channel (131) penetrates the second shaft (130); and the recess portion (121) is provided on an end surface of the first crank arm (120) far from the first shaft (110) or on an end surface of the second crank arm (140) far from the second shaft (130), the second crank arm (140) being used for connecting to the first crank arm (120), such that the recess portion (121) communicates with the first oil channel (111) and the second oil channel (131). The recess portion (121) stores lubricating oil and supplies oil to the second oil channel (131), which may improve the oil supply effect. The relative positions of the second shaft (130) and the first shaft (110) may be adjusted according to actual displacement requirements of a compressor to thereby adjust the eccentricity, such that the crankshaft may adapt to the displacement requirements of different compressors and is easy to machine and manufacture. The present invention also relates to a compressor that comprises a crankshaft and a refrigeration device that comprises a compressor.
Inventors:
WANG CHENGCHENG (CN)
Application Number:
PCT/CN2020/121597
Publication Date:
May 27, 2021
Filing Date:
October 16, 2020
Export Citation:
Assignee:
ANHUI MEIZHI COMPRESSOR CO LTD (CN)
International Classes:
F04B39/00; F04B35/04; F04B39/02; F16C3/14; F25B1/02; F25B31/00
Domestic Patent References:
| WO2016119869A1 | 2016-08-04 |
Foreign References:
| CN107288845A | 2017-10-24 | |||
| JP2001295766A | 2001-10-26 | |||
| CN106337872A | 2017-01-18 | |||
| CN206221259U | 2017-06-06 | |||
| CN102272453A | 2011-12-07 | |||
| JP2013036409A | 2013-02-21 | |||
| CN206054225U | 2017-03-29 | |||
| CN2931908Y | 2007-08-08 | |||
| CN104895764A | 2015-09-09 |
Other References:
See also references of EP 4027013A4
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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