Patent ID: 6470861
Filing Date: 2002-10-29
Classification: F02M,Y10T

Abstract:
An integrated pressure management apparatus comprising:a housing defining an interior chamber, the housing including first and second ports communicating with the interior chamber; a pressure operable device separating the chamber into a first portion and a second portion, the first portion communicating with the first port, the second portion communicating with the second port, the pressure operable device permitting fluid communication between the first and second ports in a first configuration and preventing fluid communication between the first and second ports in a second configuration; a signal chamber in fluid communication with the first portion of the interior chamber, the pressure operable device further separating the signal chamber from the second portion of the interior chamber; a solenoid displacing the pressure operable device from the first configuration to the second configuration; and a passageway through the housing, the passageway providing the fluid communication between the first portion of the interior chamber and the signal chamber, the passageway being defined at least in part by a void between the housing and the solenoid.