Patent ID: 11906063
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F  G | IPC F

Claim 15:
16. A method of operating a pressure actuated switching valve comprising:
introducing a fluid into a valve chamber having a first chamber portion including a first inner diameter, a second chamber portion having a second inner diameter that is greater than the first inner diameter, a third chamber portion having a third inner diameter that is greater than the first inner diameter, a fourth chamber portion having a fourth inner diameter that is greater than first inner diameter, and a fifth chamber portion;
snapping the pressure actuated switching valve open by unseating a first section of a valve member from a sealing surface defined between the first chamber and the second chamber portion with a first fluid pressure directed at the first section;
holding the pressure actuated switching valve open with the first fluid pressure acting on the first section and a second fluid pressure acting on a third section of the valve member in the fifth chamber portion;
passing a portion of the first fluid through an outlet connected to the second chamber portion;
reducing the first fluid pressure; and
snapping the valve member closed seating the first section on the sealing surface with a spring positioned in the fifth chamber portion.