초록 ▼

A compressor having an inlet valve which includes a valve housing and a control tube having a portion adapted to be in communication with a source of fluid. A piston is normally spring biased away from a valve element which is adapted to be alternately placed in sealing contact with a valve seat and

A compressor having an inlet valve which includes a valve housing and a control tube having a portion adapted to be in communication with a source of fluid. A piston is normally spring biased away from a valve element which is adapted to be alternately placed in sealing contact with a valve seat and withdrawn from such contact. The piston and valve element are movably mounted on the exterior of the control tube. Orifices in the control tube are adapted to control movement of the piston against the bias of the spring and also to provide a modulating influence as well as additional pressure balancing characteristics. The valve is also adapted to function as a bypass valve, a check valve and a blowdown function.

대표청구항 ▼

A compressor inlet valve comprising a valve housing, a control tube disposed at least partially within said housing and having a first portion adapted to be in communication with a source of fluid, valve element means disposed within said housing and mounted on said control tube for relative movemen

A compressor inlet valve comprising a valve housing, a control tube disposed at least partially within said housing and having a first portion adapted to be in communication with a source of fluid, valve element means disposed within said housing and mounted on said control tube for relative movement thereon, valve seat means disposed within said housing for cooperating with said valve element in opening and closing said valve, piston means disposed within said housing mounted on said control tube for relative movement thereon, said piston means being interposed between said control tube first portion and said valve element, main spring means for biasing said piston generally toward said control tube first portion, and first orifice means formed in said control tube adjacent to said piston, whereby at least a portion of the fluid introduced into said control tube first portion will emerge through said first orifice means and urge said piston to move against the bias of said main spring means in order to move said valve element to a closed position.