Valve and Stop Arrangement for Reciprocating Compressor

Patent metadata

Field	Value
Publication number	US-2016348662-A1
Application number	US-201415115080-A
Country	US
Kind code	A1
Filing date	Sep 23, 2014
Priority date	Jan 28, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

The present invention relates to an arrangement integrated by at least one reed-type suction valve and at least one flexible stop which, arranged within the compression cylinder of the compressor, acts as end-of-stroke for the movement of said suction valve. Thus, flexible stop includes an angular inertial arrangement, so that it includes a free end spaced from the free end of suction valve. In addition, free end of flexible stop is cooperative to the movement of piston.

First claim

1 . Reciprocating compressor provided with a valve and stop arrangement, the compressor comprising:
at least one compression cylinder and at least one piston; at least one reed-type suction valve, cooperating to the at least one suction hole and arranged inside the compression cylinder; at least one flexible stop associated to the suction valve and arranged within compression cylinder; the flexible stop comprising a reed-type embodiment; the flexible stop comprising an inertial arrangement wherein the free end thereof is spaced from the free end of the suction valve; and the free end of the flexible stop being cooperative to the movement of the piston; the reciprocating compressor being characterized in that it comprises; at least one means of dynamic energy dissipation associated to the flexible stop; said means of dynamic energy dissipation comprises a viscoelastic material layer associated to the flexible stop.

2 . Valve and stop arrangement for reciprocating compressor according to claim 1 , characterized in that the suction valve is cooperative to the suction hole defined in a valve-plate.

3 . Valve and stop arrangement for reciprocating compressor according to claim 2 , characterized in that the suction valve and the flexible stop are fastened to the valve-plate.

4 . Valve and stop arrangement for reciprocating compressor according to claim 2 , characterized in that the free end of the flexible stop is cooperative to the movement of the piston depending on the physical contact between said free end and the piston.

5 . Valve and stop arrangement for reciprocating compressor according to claim 1 , characterized in that the suction valve is cooperative to the suction hole defined in the piston.

6 . Valve and stop arrangement for reciprocating compressor according to claim 5 , characterized in that the suction valve and the flexible stop are fastened to the piston.

7 . Valve and stop arrangement for reciprocating compressor according to claim 4 , characterized in that the free end of the flexible stop is cooperative to the movement of the piston due to the physical contact between said free end and the valve-plate.

8 . Valve and stop arrangement for reciprocating compressor according to claim 1 , characterized in that the free end of flexible stop is also cooperative to the movement of the suction valve.

9 . Valve and stop arrangement for reciprocating compressor according to claim 1 , characterized in that the flexible stop comprises a geometry analogous to the geometry of the suction valve.

10 . Valve and stop arrangement for reciprocating compressor according to claim 1 , characterized in that the flexible stop comprises a thickness higher than the thickness of the suction valve.

11 . (canceled)

12 . (canceled)

13 . Valve and stop arrangement for reciprocating compressor according to claim 1 , characterized in that the layer of viscoelastic material further comprises at least one support structure.

14 . Valve and stop arrangement for reciprocating compressor according to claim 1 , characterized in that the flexible stop defines the maximum stroke of movement of the suction valve.

Assignees

• Whirlpool Sa

Inventors

• Lilie Dietmar Erich Bernhard

Classifications

• F04C29/128

  of the elastic type, e.g. reed valves · CPC title

• F04B2201/06061

  of the inlet valve · CPC title

• F04B39/1073 Primary

  the members being reed valves · CPC title

• F04B49/22

  by means of valves (F04B49/03 takes precedence) · CPC title

• F16K15/144

  the closure elements being fixed along all or a part of their periphery · CPC title