Motor-driven expansion valve

Details Motor-driven expansion valve Motor-driven expansion valve

1984-09-26

1985-12-03

Wayner, William E.

Valves and valve actuation

Electrically actuated valve

Rotary electric actuator

251248, 251273, F16K 3102, F16K 3144

Patent

active

045561931

ABSTRACT:
A motor-driven expansion valve comprises a valve casing having a first passage, a second passage, and a communication passage having a valve seat and permitting the first passage to communicate with the second passage, a valve member provided within the valve casing and movable toward and away from the valve seat, bellows covering the area between the valve member and the valve casing and urging the valve member away from the valve seat, a drive screw disposed substantially in alignment with the valve member and threaded into the valve casing such that, by its rotational movement, it is moved in the same direction as the valve member to cause the valve member to be moved toward and away from the valve seat, a motor, a drive gear to which a rotational force is transmitted from the output shaft of the motor, and a driven gear which is concentrically mounted on the drive screw to be rotated with the drive screw and which meshes with the drive gear to receive the rotational force from the drive gear.

REFERENCES:
patent: 290450 (1883-12-01), Medden
patent: 702342 (1902-06-01), Clough
patent: 1934314 (1933-11-01), Lawler
patent: 3464227 (1969-09-01), Matthies
patent: 3577743 (1971-05-01), Long

Affiliated with

Also associated with

Rating

Motor-driven expansion valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motor-driven expansion valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor-driven expansion valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1390989