公开(公告)号：US20190195375A1

公开(公告)日：2019-06-27

申请号：US15849902

申请日：2017-12-21

Applicant: Caltherm Corporation

Inventor： Kevin Oswald ,  Kurt Kushner ,  Morgan Greenlee ,  Kyle Weidner ,  Jason Correll

IPC: F16K15/02 ,  F01M5/00

CPC classification number: F16K15/025 ,  F01M5/007 ,  F01P7/16 ,  F01P11/08

Abstract: A thermostatic cartridge assembly for a by-pass valve that regulates fluid flow between two different fluid circuits includes a casing defining a first fluid port and a second port; a thermostatic body having a piston movable along a central axis of the thermostatic body in response to heating and expansion of the thermally responsive material; a cap joined to a second end of the casing; a biasing member urging an end of the piston against a roof of the casing; and a sleeve carried by the thermostatic body, the sleeve having a circumferential side wall and a ceiling that seat against surfaces of the casing to block the first fluid port when the thermally responsive material is at a first temperature, the circumferential side wall blocking the second fluid port when the thermally responsive material is at a second temperature greater than the first temperature.