Electric expansion valve
AssigneeParker-Hannifin Corporation
InventorsChristian C. Parker, Craig M. Obermerk, Gordon R. Coates, III
Life of this patent
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Abstract
An electronically controlled stepper motor valve utilizes an electric feed through assembly providing electrical connection between the stepper motor and a mating cable connector; wherein the electric feed through assembly includes four individual leads that are sequenced to allow the mating cable connector to be installed in any of four positions, each 90 degrees apart. The ability to use a 90 degree elbow style cable connector allows the EEV footprint to be minimized which provides an advantage when the electric expansion valve is installed in the tight confines of a package system.
Claims19
An electric expansion valve comprising:
- a valve body defining an inlet and an outlet and a fluid passageway therebetween, the fluid passageway including a valve port;
- a stepper motor linear actuator;
- a pin movable axially in and out of the valve port to open and close the valve;
- an electric feed through assembly providing electrical connection between the stepper motor and a mating cable connector;
- wherein the electric feed through assembly includes four individual leads that are sequenced to allow the mating cable connector to be installed in any of four positions, each 90 degrees apart.
An electric expansion valve comprising:
- a valve body defining an inlet and an outlet and a fluid passageway therebetween, the fluid passageway including a valve port;
- a stepper motor linear actuator including a stepper motor, gear cup, gear train, bearing, plunger guide, and lead screw;
- a pin mating with the plunger and movable axially in and out of the valve port to open and close the valve;
- and
- an electric feed through assembly providing electrical connection between the stepper motor and a mating cable connector;
- wherein the electric feed through assembly includes four individual leads that are sequenced to allow the mating cable connector to be installed in any of four positions, each 90 degrees apart.
Dependencies are inferred from the claim text.