HEAT PUMP DEVICE - TOSHIBA CARRIER CORP

Title:

HEAT PUMP DEVICE

Document Type and Number:

Japanese Patent JP2016065659

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a heat pump device capable of assuring a desired reliability and performance.SOLUTION: A heat pump device in accordance with the preferred embodiment includes a compressor, a condenser, an overcooling heat exchanger, an expansion valve, an evaporator, a bypass flow passage, a bypass expansion valve and a control device. The bypass flow passage is arranged at a suction part of the compressor from a branch part between the overcooling heat exchanger and the expansion valve through a low pressure flow passage of the overcooling heat exchanger. The bypass expansion valve is arranged in the bypass flow passage between the branch part and a low pressure side flow passage of the overcooling heat exchanger. The first temperature sensor and the second temperature sensor are arranged at the upstream side and the downstream side of the evaporator. The third temperature sensor and the fourth temperature sensor are arranged at the upstream side and the downstream side of the low pressure side flow passage of the overcooling heat exchanger. The control device controls a degree of opening of the bypass expansion valve on the basis of the detected values of the third temperature sensor and the fourth temperature sensor.SELECTED DRAWING: Figure 1

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Inventors:

TAKAYAMA TSUKASA
TANAKA MAKOTO

Application Number:

JP2014194017A

Publication Date:

April 28, 2016

Filing Date:

September 24, 2014

Export Citation:

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Assignee:

TOSHIBA CARRIER CORP

International Classes:

F25B1/00; F25B40/00

Domestic Patent References:

JP2007139225A	2007-06-07
JP2003279169A	2003-10-02
JP2008025886A	2008-02-07
JP2009092251A	2009-04-30
JP2010071614A	2010-04-02
JP2009109065A	2009-05-21
JP2007225162A	2007-09-06

Foreign References:

WO2014141375A1	2014-09-18
US7647790B2	2010-01-19
US20110113808A1	2011-05-19
WO2014128830A1	2014-08-28
WO2014128831A1	2014-08-28
US7204099B2	2007-04-17
US5522233A	1996-06-04

Attorney, Agent or Firm:

Shiga International Patent Office

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