MULTI-CYLINDER ROTARY COMPRESSOR AND REFRIGERATION CYCLE DEVICE

Title:

MULTI-CYLINDER ROTARY COMPRESSOR AND REFRIGERATION CYCLE DEVICE

Document Type and Number:

WIPO Patent Application WO/2012/086779

Kind Code:

A1

Abstract:

In a multi-cylinder rotary compressor (M), a compression mechanism (3) interconnects a back-pressure introduction pathway (H) to a blade back chamber (11b) that movably houses the back end of a second blade (12b). A check valve mechanism (G) is provided to a lubricating oil interconnection path (J) that interconnects the blade back chamber (11b) and an oil sump (14). When high pressure is introduced from the back-pressure introduction pathway (H) to the blade back chamber (11b), the lubricating oil interconnection path (J) opens, and when low pressure is introduced to the blade back chamber (11b), the lubricating oil interconnection path (J) closes. The back-pressure introduction pathway (H) and the lubricating oil interconnection path (J) are configured in a manner such that the amount of fluid flowing in from the back-pressure introduction pathway (H) to the blade back chamber (11b) when high pressure is introduced to the blade back chamber (11b) and the second blade (12b) moves in the direction that expands the volume of the blade back chamber (11b) is greater than the amount of fluid flowing out from the blade back chamber (11b) to the back-pressure introduction pathway (H) when the second blade (12b) moves in the direction that reduces the volume of the blade back chamber (11b).

More Like This:

WO/2020/164891	A SCROLL COMPRESSOR INCLUDING A BASEPLATE HAVING A MOUNTING BASE AND A CYLINDRICAL RIM SECURED BY A DOUBLE-WELDED T-JOINT
WO/2018/037906	COMPRESSOR

Inventors:

HIRAYAMA TAKUYA (JP)
JAFET FERDHY MONASRY (JP)

Application Number:

PCT/JP2011/079868

Publication Date:

June 28, 2012

Filing Date:

December 22, 2011

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOSHIBA CARRIER CORP (JP)
HIRAYAMA TAKUYA (JP)
JAFET FERDHY MONASRY (JP)

International Classes:

F04C23/00; F04C18/356

Foreign References:

JP2008520901A	2008-06-19
JP2010163926A	2010-07-29
JP2009203861A	2009-09-10

Attorney, Agent or Firm:

KURATA, Masatoshi et al. (JP)
Masatoshi Kurata (JP)

Download PDF:

View/Download PDF PDF Help

Claims:

Previous Patent: HIGH-TEMPERATURE VALVE DEVICE

Next Patent: POLYETHYLENE HAVING IMPROVED BRANCHING DEGREE DISTRIBUTION