Title:
HEAT PUMP
Document Type and Number:
Japanese Patent JP2016038107
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To present a constitution related to a safety measure even when failure of leakage of combustible refrigerant occurs to the case where an outdoor fan cannot maintain ventilation performance by generation of failure such as fault or malfunction.SOLUTION: A heat pump including an outdoor fan includes a rotational frequency signal detection unit for detecting a signal related to the rotational frequency of the outdoor fan. When an outdoor fan driving instruction for driving the outdoor fan is received, the rotational frequency signal detection unit detects the rotational frequency of the outdoor fan, and operation of the heat pump is stopped when the detected rotational frequency is equal to or less than a predetermined target rotational frequency.SELECTED DRAWING: Figure 5
Inventors:
NOBUHARA HIROHIKO
Application Number:
JP2014159297A
Publication Date:
March 22, 2016
Filing Date:
August 05, 2014
Export Citation:
Assignee:
YANMAR CO LTD
International Classes:
F24F11/02; F24F1/38; F24F1/48; F25B1/00
Domestic Patent References:
| JP2007139202A | 2007-06-07 | |||
| JP2009168420A | 2009-07-30 | |||
| JPH09189467A | 1997-07-22 | |||
| JPH10213332A | 1998-08-11 |
Foreign References:
| WO2011052046A1 | 2011-05-05 |
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office