Title:
COMPRESSER FOR AIR CONDITIONER
Document Type and Number:
Japanese Patent JP3236253
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To adjust the capacity of a compresser in plural stages by comprising a group of the first and second compressing cylinders respectively composed of two compressing cylinders, and opening and closing the first and second cylinder passages communicated with the group of the first and second compressing cylinders by the unload valves.
SOLUTION: When the first and second unload valves (hereinafter valve) 70, 80 are not energized, the coolant flown into an intake chamber 51 from an external, is taken into a cylinder through a partially opened communication port 72a and a valve chamber 54, and only one cylinder among four cylinders, is used. Then when the communication port 72a is opened by energizing only the first valve 70, the discharge pressure acting in the second discharging chamber, is acted on a piston 83, and the communication port 82a is completely closed, thereby only two cylinders are used. Further when only the second valve 80 is energized, three cylinders are used, and when the both valves 70, 80 are energized, four cylinders are used.
Inventors:
Youn
Application Number:
JP30390497A
Publication Date:
December 10, 2001
Filing Date:
November 06, 1997
Export Citation:
Assignee:
Manto Air Co., Ltd.
International Classes:
F04B27/04; F04B17/04; F04B25/04; F04B49/00; F04B53/10; F16K31/06; (IPC1-7): F04B49/00; F04B27/04; F16K31/06
Domestic Patent References:
| JP6460795A | ||||
| JP57159980A | ||||
| JP55139281U | ||||
| JP4811460U | ||||
| JP6297286U |
Attorney, Agent or Firm:
Youichi Ohshima
Previous Patent: Decorative supplies
Next Patent: METHOD FOR HANDLING SEMICONDUCTOR CHIP AND APPARATUS FOR PERFORMING THE METHOD
Next Patent: METHOD FOR HANDLING SEMICONDUCTOR CHIP AND APPARATUS FOR PERFORMING THE METHOD