Title:
MOTOR DRIVEN VALVE CONTROLLER FOR MULTIFUNCTIONAL HEAT PUMP SYSTEM
Document Type and Number:
Japanese Patent JP3708245
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To shorten a time to a stable state and to improve reliability and comfortableness by deciding an opening of a motor driven valve according to information from a number-of-operating units sensing means and a connecting unit type sensing means when number of operating units is added.
SOLUTION: When number of operating units during operation is varied, openings of motor driven valves 4a, 4b, 4c of units before and after changes of the numbers of the units is decided from a number-of-operating units sensing means 10 and a connecting unit type sensing means 11. For example, when a unit B is added to a unit A, if capacity of the unit A > capacity of the unit B is satisfied, the opening of the added unit B is reduced from that of the operated unit A. Thus, since the opening of the valve is varied previously according to the number of the operating units and the type of the connecting unit, the time required until it is stabilized can be shortened as compared with that the opening of the valve is not varied. Accordingly, wet vapor suction due to abrupt change of a refrigerant circuit or rise of discharging temperature can be prevented.
Inventors:
Mune Hiraoka
Kuramochi Takeshi
Kuramochi Takeshi
Application Number:
JP24199696A
Publication Date:
October 19, 2005
Filing Date:
September 12, 1996
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F24F11/02; F25B13/00; (IPC1-7): F25B13/00; F24F11/02
Domestic Patent References:
| JP8110077A | ||||
| JP6123512A | ||||
| JP7158980A | ||||
| JP7260235A | ||||
| JP7180924A |
Attorney, Agent or Firm:
Shoji Mizoi
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