Throttle for fluid in absorption heat pump

摘要

The throttle (4) to release fluid from a high pressure to a lower one has a valve chamber with inlet and outlet pipes for the fluid and a controllable closing element whereby the fluid flow can be altered from zero to a maximum between the inlet and outlet. There is a return device to press the closing element closed. The element is mechanically coupled with the high pressure fluid so that the fluid presses against the return device so as to increase the fluid flow, the higher the high pressure is. The element is a piston filling the valve chamber bore and has at least one hole to allow the fluid flow.