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US4486153A Expired / Lapsed US ⏱️ 0.0 years remaining

Refrigerator with encapsulated motor compressor

Assignee: Danfoss AS
•
Filing: 1983-03-24
•
Granted: 1984-12-04
•
Expires: 2003-03-24
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Abstract

Abstract A refrigeration compressor is provided with a combined sound dampening and centrifugal liquid separator chamber.

Inventors

  • 👤 Bendt W. Romer
  • 👤 Jens O. Lorentzen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 17:01
CPC Classifications
F; F25; F25B; F25B43/00; F04; F04B; F04B39/00; F04B39/12; F04B39/123; F25B31/00; F25B31/02; F25B2400/00; F25B2400/02

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 179 words
A refrigerator with an encapsulated motor compressor, comprising, a capsule, a compressor unit resiliently mounted in said capsule, a housing casting for said compressor unit, said housing casting defining (and having) a cylinder chamber for receiving a piston and a combined sound damping and centrifugal liquid separator chamber, first suction gas inlet means connected to and extending through said capsule to said combined chamber, second (said) suction gas inlet means connected to said housing casting and having fluid communication with (including a suction gas inlet connection for) said combined chamber, (and a suction gas inlet connector for said capsule,) said first and second suction gas inlet means having fluid communication and being relatively moveable to each other, said combined chamber having a rotationally symmetrical separator face with a vertical axis for operation as a liquid separator, a tangential inlet passage between said second suction gas inlet means (connection) and the top of said separator face, central gas outlet means adjacent the top of said separator face and a central liquid outlet aperture at the bottom of said separator face.
Claim 2
Dependent Claim 179 words
A refrigerator with an encapsulated motor compressor, comprising, a capsule, a compressor unit resiliently mounted in said capsule, a housing casting for said compressor unit, said housing casting defining (and having) a cylinder chamber for receiving a piston and a combined sound damping and centrifugal liquid separator chamber, first suction gas inlet means connected to and extending through said capsule to said combined chamber, second (said) suction gas inlet means connected to said housing casting and having fluid communication with (including a suction gas inlet connection for) said combined chamber, (and a suction gas inlet connector for said capsule,) said first and second suction gas inlet means having fluid communication and being relatively moveable to each other, said combined chamber having a rotationally symmetrical separator face with a vertical axis for operation as a liquid separator, a tangential inlet passage between said second suction gas inlet means (connection) and the top of said separator face, central gas outlet means adjacent the top of said separator face and a central liquid outlet aperture at the bottom of said separator face.
Claim 3
Dependent Claim 24 words
A refrigerator according to claim 1 wherein said combined chamber forms the first chamber of a suction sound damper having at least two chambers.
Claim 4
Dependent Claim 33 words
A refrigerator according to claim 1 wherein said combined chamber is formed with a bore, a cover for said bore, said central gas outlet means being an insert above said tangential inlet passage.
Claim 5
Dependent Claim 15 words
A refrigerator according to claim 1 wherein said liquid outlet aperture is a throttle opening.
Claim 6
Dependent Claim 63 words
A refrigerator according to claim 1 wherein said second suction gas inlet means is formed by a spring loaded first tube having a funnel shaped end, a second tube having a funnel shaped end disposed between said first tube and said first gas inlet means and biased against said first gas inlet means, said funnel shaped ends providing a lost motion hinge effect.
Claim 7
Dependent Claim 54 words
A refrigerator according to claim 1 wherein said second suction gas inlet means and said first suction gas inlet means each has a funnel shaped end, and spring loaded telescopic tube means extending between said first and second means, said funnel shaped ends and said telescopic tube means providing a lost motion hinge effect.
Claim 8
Dependent Claim 40 words
A refrigerator according to claim 1 wherein said second suction gas inlet means has an inlet funnel construction and said first gas inlet means has an outlet nozzle construction cooperable with and in spaced relation to said inlet funnel construction.
Claim 9
Dependent Claim 202 words
A refrigerator with an encapsulated motor compressor, comprising, a capsule, a compressor unit resiliently mounted in said capsule, a housing casting for said compressor unit, said housing casting defining a cylinder chamber for receiving a piston and a combined sound damping and centrifugal liquid separator chamber, first suction gas inlet means connected to and extending through said capsule to said combined chamber, second suction gas inlet means connected to said housing casting and having fluid communication with said combined chamber, said first and second suction gas inlet means having fluid communication and being relatively moveable to each other, said combined chamber having a rotationally symmetrical separator face with a vertical axis for operation as a liquid separator, a tangential inlet passage between said second suction gas inlet means and the top of said separator face, central gas outlet means adjacent the top of said separator face, a central liquid outlet aperture at the bottom of said separator face, said combined chamber forming the first chamber of a suction sound damper having at least two chambers, a second sound damping chamber being defined by a depression in said housing, and passage means extending between said second sound damping chamber and said combined chamber.
Claim 10
Dependent Claim 202 words
A refrigerator with an encapsulated motor compressor, comprising, a capsule, a compressor unit resiliently mounted in said capsule, a housing casting for said compressor unit, said housing casting defining a cylinder chamber for receiving a piston and a combined sound damping and centrifugal liquid separator chamber, first suction gas inlet means connected to and extending through said capsule to said combined chamber, second suction gas inlet means connected to said housing casting and having fluid communication with said combined chamber, said first and second suction gas inlet means having fluid communication and being relatively moveable to each other, said combined chamber having a rotationally symmetrical separator face with a vertical axis for operation as a liquid separator, a tangential inlet passage between said second suction gas inlet means and the top of said separator face, central gas outlet means adjacent the top of said separator face, a central liquid outlet aperture at the bottom of said separator face, said combined chamber forming the first chamber of a suction sound damper having at least two chambers, a second sound damping chamber being defined by a depression in said housing, and passage means extending between said second sound damping chamber and said combined chamber.
Claim 11
Dependent Claim 213 words
A refrigerator with an encapsulated motor compressor, comprising, a capsule, a compressor unit resiliently mounted in said capsule, a housing casting for said compressor unit, said housing casting defining a cylinder chamber for receiving a piston and a combined sound damping and centrifugal liquid separator chamber, first suction gas inlet means connected to and extending through said capsule to said combined chamber, second suction gas inlet means connected to said housing casting and having fluid communication with said combined chamber, said first and second suction gas inlet means having fluid communication and being relatively moveable to each other, said combined chamber having a rotationally symmetrical separator face with a vertical axis for operation as a liquid separator, a tangential inlet passage between said second suction gas inlet means and the top of said separator face, central gas outlet means adjacent the top of said separator face, a central liquid outlet aperture at the bottom of said separator face, said combined chamber forming the first chamber of a suction sound damper having at least two chambers a passage extending from the last of said chambers of said suction sound damper to said cylindrical chamber, said last referred to passage having a branch throttle passage having fluid communication with the interior atmosphere of said capsule.
Claim 12
Dependent Claim 213 words
A refrigerator with an encapsulated motor compressor, comprising, a capsule, a compressor unit resiliently mounted in said capsule, a housing casting for said compressor unit, said housing casting defining a cylinder chamber for receiving a piston and a combined sound damping and centrifugal liquid separator chamber, first suction gas inlet means connected to and extending through said capsule to said combined chamber, second suction gas inlet means connected to said housing casting and having fluid communication with said combined chamber, said first and second suction gas inlet means having fluid communication and being relatively moveable to each other, said combined chamber having a rotationally symmetrical separator face with a vertical axis for operation as a liquid separator, a tangential inlet passage between said second suction gas inlet means and the top of said separator face, central gas outlet means adjacent the top of said separator face, a central liquid outlet aperture at the bottom of said separator face, said combined chamber forming the first chamber of a suction sound damper having at least two chambers a passage extending from the last of said chambers of said suction sound damper to said cylindrical chamber, said last referred to passage having a branch throttle passage having fluid communication with the interior atmosphere of said capsule.

References Cited (Backward Citations)

US2277999A Cited
US3483677A Cited
US3494110A Cited
US4147479A Cited
US4086032A Cited
US4371319A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-12-04 1988-06-04 1988-12-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-12-04 1992-06-04 1992-12-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-12-04 1996-06-04 1996-12-04 $7700.00 Window Closed / Lapsed

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