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US 5,960,824 AGranted
Scroll compressor having contoured fixed rotation suction control valve
AssigneeFord Motor Company
InventorTimothy James Sullivan
Life of this patent
Estimating the term…
Abstract
A suction control valve for a scroll compressor has a valve piston with a contoured surface for encouraging aerodynamic flow through the valve. The contoured surface is not symmetrical about a vertical axis. Slots are provided in the housing and piston for engaging the valve spring to prevent rotation of the piston so that the nonsymmetry of the contoured piston surface does not affect fluid flow during operation.
Claims10
A scroll compressor, comprising:
- a housing defining a suction chamber, an intermediate chamber and a cylinder, said cylinder having a sidewall containing an opening and a top wall containing an opening and a slot;
- a valve piston having a top portion containing a slot and being slidably disposed in said cylinder, said piston being movable between and open position at which said piston is disposed toward a bottom of said cylinder allowing maximum fluid flow from said intermediate chamber through said sidewall opening to said cylinder and suction cavity, and a closed position at which said piston is disposed toward a top of said cylinder allowing minimum fluid flow from said intermediate chamber through said sidewall opening to said cylinder and suction chamber;
- and
- a valve spring mounted on said valve piston and seated in said piston and top wall slots.
1 more element
A suction control valve for scroll compressor, comprising:
- a housing defining a cylinder having a top wall containing a suction chamber opening and a spring slot, and having a sidewall containing an intermediate chamber opening;
- a valve piston having a top portion containing a spring slot and being slidably disposed in said cylinder, said piston being movable between and open position at which said piston is disposed toward a bottom of said cylinder allowing maximum fluid flow in through said intermediate chamber opening and out through suction chamber opening, and a closed position at which said piston is disposed toward a top of said cylinder allowing minimum fluid flow in through said intermediate chamber opening and out through said suction chamber opening;
- and
- a valve spring mounted on said valve piston and seated in said piston and top wall spring slots.
1 more element
Dependencies are inferred from the claim text.