| 摘要 |
The check valve is useful in air conditioning compressor units and is designed to take up little space while delivering a maximum flow of air or other gas when in the open position. The valve includes a generally cylindrical valve body with a generally cylindrical central passageway extending lengthwise and which is divided by a sloped annular seat into two portions of different diameters. A ball-shaped valve element is slideably disposed in the larger diameter portion of the passageway, the outer end of which is blocked by a transverse pin. Spaced longitudinally extending protrusions pass radially inwardly from the walls of the larger passageway portion to contact and guide the ball and to define with the passageway walls and ball exterior longitudinal gas flow channels between the ball and passageway walls. These channels are of improved size relative to prior art valves and allowed increased gas flow therethrough for more rapid and efficient air conditioning.
|
