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US 9,938,967 B2Granted
Reciprocating compressor system
AssigneeEmerson Climate Technologies, Inc.
InventorsKirill M. Ignatiev, Michael M. Perevozchikov
Life of this patent
Estimating the term…
Abstract
A compressor may include a crankcase, a crankshaft, a piston, a discharge valve and a suction plenum. The crankcase defines a discharge plenum receiving working fluid at a first pressure. The crankshaft is disposed within the discharge plenum. The piston is drivingly connected to the crankshaft and reciprocatingly received in a cylinder. The piston and cylinder cooperate to define a compression chamber therebetween. The discharge valve may control fluid flow through a discharge passage between the compression chamber and the discharge plenum. The suction plenum may receive working fluid at a second pressure that is less than the first pressure. The suction plenum may provide working fluid at the second pressure to the compression chamber.
Claims20
A compressor comprising:
- a crankcase defining an interior volume;
- a crankshaft disposed within said crankcase;
- first and second pistons drivingly connected to said crankshaft;
- first and second cylinders reciprocatingly receiving said first and second pistons, respectively, said first piston and said first cylinder defining a first compression chamber therebetween, said second piston and said second cylinder defining a second compression chamber therebetween;
- a first suction plenum attached to said first cylinder and from which said first compression chamber draws working fluid, said first suction plenum including a first inlet through which working fluid flows into said first suction plenum;
- a first discharge passage extending through said first piston and through which compressed working fluid flows from said first compression chamber to said interior volume of said crankcase;
- and
- a second suction plenum attached to said second cylinder and from which said second compression chamber draws working fluid, said second suction plenum including a second inlet through which working fluid flows into said second suction plenum from said interior volume of said crankcase,
- wherein said second suction plenum includes a third inlet through which working fluid flows into said second suction plenum, wherein said third inlet is fluid isolated from said interior volume of said crankcase.
6 more elements
A method comprising:
- operating a compressor in a first operating mode, the compressor including a crankcase, first and second cylinders, a crankshaft disposed within an interior volume of said crankcase, first and second pistons driven by said crankshaft and reciprocatingly received in said first and second cylinders, respectively, said first piston and said first cylinder defining a first compression chamber therebetween, said second piston and said second cylinder defining a second compression chamber therebetween, said compressor including a first discharge passage through which compressed fluid flows from said first compression chamber to said interior volume of said crankcase, operating said compressor in said first operating mode includes receiving working fluid in said first and second compression chambers and compressing working fluid in said first and second compression chambers;
- and
- operating said compressor in a second operating mode in which working fluid is received in and compressed in one of said first and second compression chambers and in which working fluid is restricted from flowing into another of said first and second compression chambers,
- wherein in said first operating mode, said second compression chamber receives working fluid from said interior volume of said crankcase.
1 more element
A compressor comprising:
- a crankcase defining an interior volume;
- a crankshaft disposed within said crankcase;
- first and second pistons drivingly connected to said crankshaft;
- first and second cylinders reciprocatingly receiving said first and second pistons, respectively, said first piston and said first cylinder defining a first compression chamber therebetween, said second piston and said second cylinder defining a second compression chamber therebetween;
- a first suction plenum attached to said first cylinder and from which said first compression chamber draws working fluid, said first suction plenum including a first inlet through which working fluid flows into said first suction plenum;
- a first discharge passage extending through said first piston and through which compressed working fluid flows from said first compression chamber to said interior volume of said crankcase;
- a second suction plenum attached to said second cylinder and from which said second compression chamber draws working fluid, said second suction plenum including a second inlet through which working fluid flows into said second suction plenum from said interior volume of said crankcase;
- a first valve controlling fluid flow into said first suction plenum through said first inlet;
- a second valve controlling fluid flow into said second suction plenum through said second inlet;
- and
- a third valve controlling fluid flow into said second suction plenum through a third inlet.
8 more elements
Dependencies are inferred from the claim text.