Refrigeration system anad a method for regulating the refrigeration capacity of such a system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 6, 1998
Grant Date -
N/A
app pub date -
Jul 10, 1996
filing date -
Feb 3, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A refrigeration system whose refrigeration capacity can be regulated continuously in a simple and reliable manner by gradually restricting the flow of refrigerant through an economizer channel to the compressor. The refrigeration system includes a rotary screw compressor, a condenser, a first pressure reducing valve, an economizer, a second pressure reducing valve, and an evaporator connected in sequence by respective channels. An outlet channel connects the evaporator to a low pressure inlet port of the rotary screw compressor to form a closed loop for a refrigerant. An economizer channel selectively connects the economizer to a closed working chamber of the rotary screw compressor. An adjustable valve provided in the economizer channel continuously regulates a mass flow of gaseous refrigerant through the economizer channel. And a sensing device senses a value of at least one parameter of the refrigerant in the closed loop which is indicative of a required refrigeration capacity. The adjustable valve is governed based on the at least one parameter sensed by the sensing device, and the at least one parameter is at least one of a temperature of refrigerant in the outlet channel of the evaporator and a pressure of refrigerant in the outlet channel of the evaporator.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully