Title:
REFRIGERANT COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2021/132445
Kind Code:
A1
Abstract:
Provided is a refrigerant compressor comprising an oil pump capable of drawing up lubricating oil in an oil pan and then supplying the oil to a sliding location, regardless of the direction of rotation of a rotating shaft. The present invention also addresses the problem of a decrease in the volume of a refrigerant suction chamber due to formation of an oil suction passageway for drawing up the lubricating oil from the oil pan. An oil pump 31 accommodated in an oil pump chamber 30 is provided with an inner gear 32, an outer gear 33 eccentrically in mesh with the inner gear 32, and an offset direction reversing means capable of reversing an offset direction of the outer gear 33. The offset direction reversing means is switched in accordance with the rotating direction of the outer gear 33 to cause lubricating oil to be delivered from an oil suction chamber 40 to an oil ejection chamber 50, regardless of the rotating direction of the rotating shaft 14.
Inventors:
KURIBARA TOSHIAKI (JP)
Application Number:
PCT/JP2020/048387
Publication Date:
July 01, 2021
Filing Date:
December 24, 2020
Export Citation:
Assignee:
VALEO JAPAN CO LTD (JP)
International Classes:
F04B27/12; F04B39/02; F04C2/10
Foreign References:
| JPH09273479A | 1997-10-21 | |||
| JPS423348B1 | ||||
| JP2007291962A | 2007-11-08 | |||
| US20120177520A1 | 2012-07-12 | |||
| CN202612040U | 2012-12-19 | |||
| KR101587840B1 | 2016-01-22 |
Download PDF:
Previous Patent: WATER-IN-OIL-TYPE EMULSIFIED SUNSCREEN COSMETIC
Next Patent: INK CONTAINING FINE METAL PARTICLES
Next Patent: INK CONTAINING FINE METAL PARTICLES