Title:
CRANKSHAFT, INVERTER COMPRESSOR AND REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/218207
Kind Code:
A1
Abstract:
Disclosed in the present application are a crankshaft, an inverter compressor and a refrigeration device. The crankshaft comprises a main shaft (10), a crank (20), and a crank shaft (30) mounted on one end of the main shaft (10) by means of the crank (20), wherein the main shaft (10) is provided with an oil suction inner cavity (11) and a distribution oil channel (12) that penetrates the crank shaft (30); an outer wall face of the main shaft (10) is provided with a first spiral oil groove (13) and a second spiral oil groove (14) which each have one end in communication with the oil suction inner cavity (11); and the other ends of the first spiral oil groove (13) and the other end of the second spiral oil groove (14) are respectively provided with a first hole channel (151) and a second hole channel (162) which are in communication with the distribution oil channel (12), the two hole channels having an approximately equal deflection depth and outlet area. In this way, when the crankshaft is rotated forward or reversely at the same speed, it is possible to ensure an approximately equal supply of lubricating oil through the two spiral oil grooves, thus achieving an approximately equal amount of oil supply to the crankshaft during forward and reverse rotation at the same speed.
Inventors:
HONG JIAHUA (CN)
SHEN XUEBAO (CN)
CAO HONGJUN (CN)
SHEN XUEBAO (CN)
CAO HONGJUN (CN)
Application Number:
PCT/CN2022/085618
Publication Date:
October 20, 2022
Filing Date:
April 07, 2022
Export Citation:
Assignee:
ANHUI MEIZHI COMPRESSOR CO LTD (CN)
International Classes:
F04B39/00; F04B39/02; F16C3/14
Foreign References:
| CN214741941U | 2021-11-16 | |||
| CN214577618U | 2021-11-02 | |||
| CN214533435U | 2021-10-29 | |||
| CN214577616U | 2021-11-02 | |||
| CN1497177A | 2004-05-19 | |||
| US6457561B1 | 2002-10-01 | |||
| CN105041610A | 2015-11-11 | |||
| KR20000038950A | 2000-07-05 | |||
| JPS60116885A | 1985-06-24 | |||
| JP2010038009A | 2010-02-18 | |||
| US20040241013A1 | 2004-12-02 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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