Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PISTON COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/188762
Kind Code:
A1
Abstract:
Provided is a piston compressor configured so that loss in discharge pressure can be suppressed, a structure can be simplified, and the piston compressor can realize an air conditioning device capable of exhibiting excellent control performance. In this piston compressor 8, a first communication passage in communication with a cylinder bore is provided in a cylinder block. A drive shaft is provided with a rotating body. The rotating body rotates with the drive shaft, can be moved in the direction of the drive axis O of the drive shaft 3 by the differential pressure ΔP between suction pressure Ps in a suction chamber and control pressure Pc, and has formed therein a second communication passage intermittently communicating with the first communication passage as the drive shaft rotates. In the compressor, the flow rate of a refrigerant discharged from a compression chamber into a discharge chamber changes depending on the position of the rotating body in the direction of the drive axis O. The compressor is further provided with a differential pressure detection device capable of obtaining a signal in accordance with the differential pressure ΔP, and a flow rate estimation device which estimates the flow rate of a refrigerant on the basis of the signal.

Inventors:
KONDO, Hisaya (2-1 Toyoda-cho, Kariya-sh, Aichi 71, 〒4488671, JP)
YAMAMOTO, Shinya (2-1 Toyoda-cho, Kariya-sh, Aichi 71, 〒4488671, JP)
KANAI, Akinobu (2-1 Toyoda-cho, Kariya-sh, Aichi 71, 〒4488671, JP)
NISHII, Kei (2-1 Toyoda-cho, Kariya-sh, Aichi 71, 〒4488671, JP)
Application Number:
JP2019/012039
Publication Date:
October 03, 2019
Filing Date:
March 22, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI (2-1 Toyoda-cho, Kariya-shi Aichi, 71, 〒4488671, JP)
International Classes:
F04B27/12; F04B27/14; F04B39/10; F04B49/08; F04B49/22
Foreign References:
JPH07119631A1995-05-09
JPH05321828A1993-12-07
Attorney, Agent or Firm:
PATENA CORPORATION (Nagoya Daini Saitama Bldg, 2-28 Meieki 4-chome, Nakamura-ku, Nagoya-sh, Aichi 02, 〒4500002, JP)
Download PDF:



 
Previous Patent: LAYER TRANSFER DEVICE 

Next Patent: SLURRY FOR SPRAYING