公开(公告)号：WO2019125997A1

公开(公告)日：2019-06-27

申请号：PCT/US2018/065932

申请日：2018-12-17

Applicant: CALTHERM CORPORATION

Inventor： OSWALD, Kevin ,  KUSHNER, Kurt ,  GREENLEE, Morgan ,  WEIDNER, Kyle ,  CORRELL, Jason

IPC: F01P7/16

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.