Intake pulsation damper of swash plate-type compressor

Patent metadata

Field	Value
Publication number	US-10844853-B2
Application number	US-201715780565-A
Country	US
Kind code	B2
Filing date	Jun 27, 2017
Priority date	Aug 24, 2016
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

The present invention relates to a suction pulsation reducing device of a swash plate type compressor, and more particularly, to a suction pulsation reduction apparatus provided on a suction channel formed in a rear head of a swash plate type compressor, in which a moving range of a core portion is limited and all parts to be mounted on a suction channel are integrally formed in a case.

First claim

The invention claimed is:

1. A suction pulsation reduction apparatus provided on a suction channel formed in a rear head of a swash plate type compressor comprising:
a case including an inlet located at a suction port side and having one side of the case opened in a longitudinal direction, an outlet formed by making a predetermined region on an outer circumferential surface hollow, and a latching portion protruding outwardly from the outer circumferential surface of an end part of the case;
a core portion moving in the longitudinal direction in the case according to a suction pressure of a coolant introduced from the inlet to control an opening/closing area of the inlet;
an elastic spring inserted into the case and seated on an other side surface of the case to elastically support the core portion,
a core hook portion protruding inwardly in a predetermined region on an inner circumferential surface of the case; and
a hook moving groove extending in the longitudinal direction on an outer circumferential surface of the core portion at a position corresponding to the core hook portion and depressed inwardly,
wherein the hook moving groove extends from a point spaced by a predetermined distance from an other end of the core portion in the longitudinal direction, and
wherein the core hook portion protrudes at a point spaced by a predetermined distance from the other end of the core portion in the longitudinal direction of the case, and the distance spaced from the other end of the core portion is equal to or shorter than a length of the hook moving groove.

2. The suction pulsation reduction apparatus of claim 1 , wherein a predetermined region of one end of the core portion which is located at an inlet side of the case is provided with a chamfer portion formed to have a diameter gradually reducing.

3. The suction pulsation reduction apparatus of claim 1 , wherein the case is integrally formed with the core hook portion by injection molding.

4. A swash plate type compressor including the suction pulsation reduction apparatus of claim 1 ,
wherein the latching portion is seated on a groove protruding on the suction channel, and
a body hook portion is latched to a hook coupling portion depressed into the groove at a position corresponding to the body hook portion of the case.

5. A suction pulsation reduction apparatus provided on a suction channel formed in a rear head of a swash plate type compressor, comprising:
a case including an inlet located at a suction port side and having one side of the case opened in a longitudinal direction, an outlet formed by making a predetermined region on an outer circumferential surface hollow, and a latching portion protruding outwardly from the outer circumferential surface of an end part of the case;
a core portion moving in the longitudinal direction in the case according to a suction pressure of a coolant introduced from the inlet to control an opening/closing area of the inlet;
an elastic spring inserted into the case and seated on an other side surface of the case to elastically support the core portion,
a core hook portion protruding inwardly in a predetermined region on an inner circumferential surface of the case;
a hook moving groove extending in the longitudinal direction on an outer circumferential surface of the core portion at a position corresponding to the core hook portion and depressed inwardly;
a core guide protruding inwardly in a predetermined region on the inner circumferential surface of the case and extending from one side to the other side in the longitudinal direction, and
a guide moving groove extending in the longitudinal direction on an outer circumferential surface of the core portion at a position corresponding to the core guide and depressed inwardly;
wherein the hook moving groove extends from a point spaced by a predetermined distance from an other end of the core portion in the longitudinal direction.

6. The suction pulsation reduction apparatus of claim 5 , wherein the number of core guides and the number of core hook portions are at least one.

7. The suction pulsation reduction apparatus of claim 6 , wherein the core guide and the core hook portion are disposed at positions corresponding to each other with respect to a center of the core portion on the outer circumferential surface of the core portion.

8. The suction pulsation reduction apparatus of claim 1 , wherein the latching portion protrudes outwardly along the edge of one end of the case and protrudes while being spaced at regular intervals in a circumferential direction.

9. The suction pulsation reduction apparatus of claim 1 , further comprising:
a body hook portion protruding outwardly in a predetermined region on the outer circumferential surface of the case and further protruding gradually toward the inlet.

10. The suction pulsation reduction apparatus of claim 9 , wherein the number of body hook portions is at least one.

Assignees

• Hanon Systems

Inventors

• Yoon Young Seop
• Lim Seung Taek

Classifications

• F04B39/10

  Adaptations or arrangements of distribution members · CPC title

• F04B39/0027

  Pulsation and noise damping means · CPC title

• F04B27/08 Primary

  having cylinders coaxial with, or parallel or inclined to, main shaft axis · CPC title

• F16K27/0209

  Check valves or pivoted valves · CPC title

• Y10T137/7937

  Cage-type guide for stemless valves · CPC title