The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2005
Filed:
Aug. 31, 2001
Kåre Aflekt, Trondheim, NO;
Einar Brendeng, Trondheim, NO;
Armin Hafner, Trondheim, NO;
Petter Nekså, Trondheim, NO;
Jostein Pettersen, Ranheim, NO;
Håvard Rekstad, Trondheim, NO;
Geir Skaugen, Trondheim, NO;
Gholam Reza Zakeri, Trondheim, NO;
Kåre Aflekt, Trondheim, NO;
Einar Brendeng, Trondheim, NO;
Armin Hafner, Trondheim, NO;
Petter Nekså, Trondheim, NO;
Jostein Pettersen, Ranheim, NO;
Håvard Rekstad, Trondheim, NO;
Geir Skaugen, Trondheim, NO;
Gholam Reza Zakeri, Trondheim, NO;
Sinvent AS, Trondheim, NO;
Abstract
A method of defrosting of a heat exchanger (evaporator) in a vapor compression system including, downstream of a heat exchanger (evaporator) () to be defrosted, at least a compressor (), a second heat exchanger (condenser/heat rejecter) (), and an expansion device () connected by conduits in an operable manner to form an integral closed circuit. The heat exchanger () to be defrosted is subjected to essentially the same pressure as the compressor's () discharge pressure. Thus, the heat exchanger () is defrosted as the high-pressure discharge gas from the compressor () flows through to the heat exchanger, giving off heat to the heat exchanger (). In the circuit, in connection with the expansion device () a first bypass loopwith a first valve ('), is provided. A pressure reducing device (′) is provided in a second bypass loop in conjunction with a second valve (′″) disposed downstream of the heat exchanger () being defrosted, whereby the first valve (′) is open and the second valve (′″) is closed when defrosting takes place.