Title:
REFRIGERATOR OR AIR CONDITIONER AND CONTROL METHOD FOR THE SAME
Document Type and Number:
Japanese Patent JP2016125746
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve a thermal efficiency of a refrigerator or an air conditioner constituting an approximation reverse Ericsson cycle.SOLUTION: This invention forms a reverse Ericsson cycle mainly comprising: an isothermal heat radiation stroke by a condenser; an isothermal heat absorption stroke by an evaporator; an isobaric heat radiation stroke at a liquid region performed by heat-exchanging at a regenerative heat exchanger; and an isobaric heat absorption stroke in a super-heated steam region. A partial stroke performed in the super-heated steam region of the isothermal heat radiation stroke is replaced with heat insulation compression strokes of a plurality of stages by the compressors of a plurality of stages and the isobaric heat radiation strokes of a plurality of stages by a gas cooler and the condenser, the refrigerant of wet state at the isobaric heat absorption stroke is fed into the regenerative heat exchanger. There is provided a control device for performing a controlling operation in such a way that the final point of the isobaric heat radiation stroke is positioned from a sensible heat limit super-cooled point becoming a final point of the isobaric heat radiation stroke when the saturated gas refrigerant is fed into the regenerative heat exchanger at the isobaric heat absorption stroke to a wet limit super-cooled point becoming a final point of the isobaric heat radiation stroke when the final point of a heat insulation expansion stroke by the first expansion means is positioned on a saturation refrigerant liquid line.SELECTED DRAWING: Figure 1
Inventors:
INO HIROMI
SEKIYA YOSHIZO
SABUZAWA TOSHIKAZU
MACHIDA AKITO
SEKIYA YOSHIZO
SABUZAWA TOSHIKAZU
MACHIDA AKITO
Application Number:
JP2014266465A
Publication Date:
July 11, 2016
Filing Date:
December 26, 2014
Export Citation:
Assignee:
MAEKAWA SEISAKUSHO KK
International Classes:
F25B1/00; F25B1/10
Domestic Patent References:
| JP2009529123A | 2009-08-13 | |||
| JP2009133547A | 2009-06-18 | |||
| JPS5556567A | 1980-04-25 | |||
| JP2008185327A | 2008-08-14 | |||
| JP2004061061A | 2004-02-26 |
Attorney, Agent or Firm:
Seishin ip patent business corporation