Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
COMPRESSOR OUTPUT CALCULATION DEVICE AND CONTROL DEVICE USING THE SAME
Document Type and Number:
Japanese Patent JP2005016352
Kind Code:
A
Abstract:

To allow torque or power estimation of a compressor with high accuracy without using a refrigerant flow sensor.

A refrigerating cycle includes a variable displacement compressor capable of controlling pressure difference between discharged refrigerant pressure and sucked refrigerant pressure, a condenser, and a decompressing mechanism and an evaporator. In the compressor output calculation device and a control device using the same, torque or power of a compressor is calculated on the basis of the detected amount or estimated value of refrigerant flow rate, the detected amount or estimated value of discharged refrigerant pressure, the detected amount or estimated value of sucked refrigerant pressure, and rotation speed of the compressor.


Inventors:
IMAI TOMONORI
INOUE ATSUO
Application Number:
JP2003000179938
Publication Date:
January 20, 2005
Filing Date:
June 24, 2003
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SANDEN CORP
International Classes:
F02D29/04; B60H1/32; F04B27/18; F04B49/00; (IPC1-7): F04B49/00; B60H1/32; F02D29/04
Attorney, Agent or Firm:
伴 俊光