Patent ID: 7802588
Filing Date: 2010-09-28
Classification: F16K,Y10T

Abstract:
1. A three-way poppet valve comprising: a valve body; and a valve assembly movable in a chamber of the valve body for controlling communication between a high pressure passage, a low pressure passage and an outlet passage; wherein the valve assembly has a first valve member movable between an open and closed position to respectively permit or block flow through the high pressure passage, and a second valve member movable between an open and closed position to respectively permit or block flow through a low pressure passage; wherein the second valve member is moved by the first valve member to the closed position when the first valve member is moved to the open position; and wherein when the first valve member is moved to the closed position, the second valve member remains in the closed position until a pressure differential between the chamber and the low pressure inlet reaches a prescribed criteria.