Suction muffler
AssigneeTecumseh Products Company
InventorsHarold M. Harper, Raymond J. Schmitz, III, Tara C. Kandpal
Life of this patent
Estimating the term…
Abstract
A hermetic compressor including a suction muffler disposed opposite the suction inlet tube. A funnelled or countersunk inlet port on the muffler permits semi-direct refrigerant flow into the muffler, creating enhanced cooling of the motor and higher compressor efficiency. Baffle walls disposed parallel and on opposite sides of an internal standpipe within the suction muffler create an increased resonator effect with optimum refrigerant throughput.
Claims19
A compressor comprising:
- a housing;
- a motor compressor unit disposed within said housing for compressing fluid, said housing having a suction inlet tube emptying refrigerant fluid into the interior of said housing;
- and
- a suction muffler comprising:
- a rounded plastic box shaped muffler housing having a front wall, a back wall, and side walls connecting therebetween, said front wall having a countersunk inlet port, said suction inlet tube spaced apart from and emptying a first portion of the refrigerant fluid into said inlet port to impact said back wall whereby semi-direct fluid flow into said inlet port is created, said suction inlet tube emptying the remainder of the refrigerant fluid outside of said muffler and into said compressor housing, thereby improving motor cooling;
- a suction standpipe having an inlet rim and disposed within said muffler housing extending from said compressor assembly to a location a spaced distance away from said inlet port, said spaced distance dimensioned to provide maximum flow of fluid through said standpipe after fluid from said suction tube impacts said back wall of said muffler housing;
- and
- a baffle wall disposed within said muffler housing extending from said front wall to said back wall, said baffle wall located between said standpipe and a said side wall of said muffler housing to form a lateral subcavity that acts as a resonator, said baffle wall located in said muffler housing such that said suction standpipe inlet rim is within line of sight of said back wall impacted by the refrigerant so that said first portion of refrigerant fluid may directly enter said suction standpipe after impacting said back wall.
A suction muffler in combination with a hermetic motor compressor unit disposed within a housing having a suction inlet tube emptying refrigerant fluid into the interior of the housing, said suction muffler comprising:
- a rounded thermoplastic box shaped muffler housing having a front wall, a back wall, and side walls connecting therebetween, said front wall having a countersunk inlet port, said suction inlet tube spaced apart from and emptying a first portion of the refrigerant fluid into said inlet port to impact said back wall whereby semi-direct fluid flow into said inlet port is created, said suction inlet tube emptying the remainder of the refrigeration fluid outside of said muffler and into said compressor housing, thereby improving motor cooling;
- a suction standpipe having an inlet rim and disposed within said muffler housing extending from said compressor unit to a location a spaced distance away from said inlet port, said spaced distance dimensioned to provide maximum flow of refrigerant fluid through said standpipe after the fluid from said suction tube impacts said back wall of said muffler housing;
- and
- a baffle wall disposed within said muffler housing extending from said front wall to said back wall, said baffle wall located both between and parallel with said standpipe and a said side wall to form a lateral subcavity that acts as a resonator, said baffle wall located in said muffler housing such that said suction standpipe inlet rim is within line of sight of said back wall impacted by the refrigerant so that said first portion of refrigerant fluid may directly enter said suction standpipe after impacting said back wall.
Dependencies are inferred from the claim text.