公开(公告)号：US09885373B1

公开(公告)日：2018-02-06

申请号：US15290202

申请日：2016-10-11

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Steve Abel ,  Matt McClure ,  Kellan Geck

IPC: F16L55/04 ,  F15B1/24 ,  F16L55/05 ,  F16L55/055

CPC classification number: F15B1/24 ,  F15B2201/31 ,  F15B2201/411 ,  F16L55/04 ,  F16L55/041 ,  F16L55/053 ,  F16L55/055

Abstract: A fluid accumulator includes a tank, a piston, and a valve. The piston is movably disposed within the tank and divides the tank volume into a first fluid volume and a second fluid volume. The valve is coupled to the tank and includes a valve body, a valve element, a valve spring, a piston contact element, and a load limiter spring. The valve element is disposed within the valve body and is movable between an open position and a closed position. The valve spring has a first spring constant and supplies a force to the valve element that urges the valve element toward the open position. The piston contact element is spaced apart from, and is movable relative to, the valve element. The load limiter spring engages the valve element and the piston contact element, and has a second spring constant that is greater than the first spring constant.