ENCLOSED COMPRESSOR, TWO-CYLINDER ROTARY COMPRESSOR, AND REFRIGERATING CYCLE APPARATUS

Title:

ENCLOSED COMPRESSOR, TWO-CYLINDER ROTARY COMPRESSOR, AND REFRIGERATING CYCLE APPARATUS

Document Type and Number:

WIPO Patent Application WO/2010/024409

Kind Code:

A1

Abstract:

In an enclosed container (1), there is mounted a portion of a pressure switching valve (K) for switching the pressure of a second blade chamber (10b) formed in a second cylinder (6B), into a discharge pressure and a suction pressure. The pressure switching valve (K) is equipped with a valve body (21) having a slider hole (25) along the axial direction, and a slider (24) arranged in the slider hole (25). The slider (24) can be switched between a first operation position, at which the spaces in the second blade chamber (10b) and the enclosed container (1) communicate with each other, and a second operation position, at which the second blade chamber (10b) and a suction communication passage (26) to be connected with a second cylinder chamber (Sb) communicate with each other, so that the capacities of the full-capacity run and the half-capacity run can be varied. Thus, the constitution is simplified, and the number of parts is decreased to reduce the step number. The influences on the cost can be suppressed to shorten the time period the run-switching.

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Inventors:

FUTAMI TOSHIHIKO (JP)
HIRAYAMA TAKUYA (JP)

Application Number:

PCT/JP2009/065114

Publication Date:

March 04, 2010

Filing Date:

August 28, 2009

Export Citation:

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Assignee:

TOSHIBA CARRIER CORP (JP)
FUTAMI TOSHIHIKO (JP)
HIRAYAMA TAKUYA (JP)

International Classes:

F04C23/00; F04C18/356; F04C29/00

Domestic Patent References:

WO2005061901A1

2005-07-07

Foreign References:

JPH05256286A	1993-10-05
JP2008509326A	2008-03-27
JP2006316965A	2006-11-24
JP2004360476A	2004-12-24
JPH0249994A	1990-02-20
JP2005171848A	2005-06-30
JP2004132353A	2004-04-30
JP2004100608A	2004-04-02
JPH01247786A	1989-10-03

Attorney, Agent or Firm:

SUZUYE, Takehiko et al. (JP)
Takehiko Suzue (JP)

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