Patent Number: 6,253,837

Title: By-pass values for heat exchanger

Abstract: A by-pass valve and a heat exchanger employing same is disclosed where the by-pass valve makes a short circuit from the heat exchanger inlet to the heat exchanger outlet to disable the heat exchanger under certain temperature conditions. The by-pass valve includes a housing defining a chamber. Three main ports communicate with the chamber, one being a valve port. A temperature responsive actuator located in the chamber operates a spring loaded valve to open and close the valve port. The valve port can be connected to one of the heat exchanger inlet or outlet, the other main ports are then connected in series with the other of the heat exchanger inlet or outlet.

Inventors: Seiler; Thomas F. (Milton, CA), Bettio; Dario (Mississauga, CA), Peric; Yuri (Oakville, CA)

Assignee: Long Manufacturing Ltd.

International Classification: F28F 27/00 (20060101); F28F 27/02 (20060101); G05D 23/13 (20060101); G05D 23/01 (20060101); F28D 1/04 (20060101); F28D 1/053 (20060101); F01M 5/00 (20060101); F01P 7/16 (20060101); F01P 7/14 (20060101); F28F 027/02 ()

Expiration Date: 07/03/2018