초록 ▼

The unloader has a piston-operated valving element which opens and closes a compressor, air inlet housing, inlet port to load and unload the associated compressor. A control, pressured air supply is addressed to the piston to cause the latter to translate the valving element into port closure, and i

The unloader has a piston-operated valving element which opens and closes a compressor, air inlet housing, inlet port to load and unload the associated compressor. A control, pressured air supply is addressed to the piston to cause the latter to translate the valving element into port closure, and in the absence of the aforesaid supply, vacuum pressure and incoming air displace the valving element from closure of the ports. One spring seats the piston, and another moves the valving element into closure when the compressor is shut down, in one embodiment of the invention. A guide rod pilots movements of the piston and valving element. In the combination, the unloader is wholly confined within an aluminum die-cast air inlet housing.

대표청구항 ▼

An unloader, for emplacement wholly within the inlet housing of a gas compressor, comprising: a valving element; wall means movable for engaging and displacing said valving element; guide means for (a) piloting displacement of said valving element, and (b) also for piloting movement of said wall mea

An unloader, for emplacement wholly within the inlet housing of a gas compressor, comprising: a valving element; wall means movable for engaging and displacing said valving element; guide means for (a) piloting displacement of said valving element, and (b) also for piloting movement of said wall means; wherein said valving element and said wall means are slidably engaged with said guide means; and further including biasing means, interposed between said valving element and one of said wall and guide means, for urging said valving element in a given direction; and wherein said valving element comprises a cylinder having a hollow, longitudinal interior and being closed at one end; and said guide means is received within said hollow interior of said cylinder.