Patent ID: 9291094
Filing Date: 2016-03-22
CPC Classification: F02B,F02D,F16K,G05D,Y02T

Claim Text:
1. A variable flow valve assembly, comprising: a main body defining a chamber and a shelf, an inlet port, an outlet port, and a wall located between the inlet port and the outlet port, the wall defining a metering orifice for selectively allowing a medium to flow from the inlet port to the outlet port, wherein the chamber of the main body includes a pressurized chamber; a piston moveable within the chamber of the main body in a plurality of partially open positions to vary the amount of medium flowing through the modulation orifice, wherein the piston separates the pressurized chamber from the inlet port; a position sensor for determining the position of the piston within the chamber of the main body; a controller that is in signal communication with the position sensor; a solenoid in signal communication with the controller; and a cover seated against the shelf of the main body, the cover providing sealing between the pressurized chamber and the atmosphere.