Electrically operated refrigerant valve

Details Electrically operated refrigerant valve Electrically operated refrigerant valve

1989-05-08

1990-01-30

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Having means to produce digital pulses

25112915, 251 65, F16K 3106

Patent

active

048968609

ABSTRACT:
A solenoid operated refrigerant expansion valve, particularly for automotive air conditioning systems, having a center-post guided tubular armature which slides on the post to provide valving of cross-ports communicating with a hollow region in the post which communicates with the valve outlet. The tubular armature has a pair of sleeves disposed on the interior at opposite ends thereof which provide the sole sliding contact surfaces on the post for minimizing friction therebetween to reduce the tendency of the armature to seize on the post.

REFERENCES:
patent: 3588039 (1971-06-01), Chelminski
patent: 4452424 (1984-06-01), Kawata
patent: 4504039 (1985-03-01), Kariya
patent: 4548047 (1985-10-01), Hayashi et al.

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