KR101841279B1 - Swash plate type compressor - Google Patents

Swash plate type compressor Download PDF

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Publication number
KR101841279B1
KR101841279B1 KR1020110039322A KR20110039322A KR101841279B1 KR 101841279 B1 KR101841279 B1 KR 101841279B1 KR 1020110039322 A KR1020110039322 A KR 1020110039322A KR 20110039322 A KR20110039322 A KR 20110039322A KR 101841279 B1 KR101841279 B1 KR 101841279B1
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KR
South Korea
Prior art keywords
muffler
suction
chamber
swash plate
suction port
Prior art date
Application number
KR1020110039322A
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Korean (ko)
Other versions
KR20120121481A (en
Inventor
이건호
김기범
이태진
이승원
Original Assignee
학교법인 두원학원
주식회사 두원전자
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Application filed by 학교법인 두원학원, 주식회사 두원전자 filed Critical 학교법인 두원학원
Priority to KR1020110039322A priority Critical patent/KR101841279B1/en
Priority to PCT/KR2012/003221 priority patent/WO2012148180A2/en
Publication of KR20120121481A publication Critical patent/KR20120121481A/en
Application granted granted Critical
Publication of KR101841279B1 publication Critical patent/KR101841279B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

A swash plate compressor according to the present invention is a swash plate compressor including a housing, a cylinder block having a plurality of cylinder bores formed therein and coupled to the housing, and a piston reciprocally received in the cylinder bore, A suction port formed; A suction chamber formed in the housing to connect the suction port and the cylinder bore; And a muffler cap installed in the suction chamber.
Accordingly, the muffler cap is provided in the suction chamber to form the muffler, thereby suppressing the pulsation of the suction refrigerant as much as possible, thereby reducing noise and vibration.

Description

[0001] Swash plate type compressor [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swash plate compressor, and more particularly, to a swash plate compressor that reduces noise and vibration due to pulsation of a suction refrigerant.

2. Description of the Related Art Generally, an air conditioner of a vehicle uses a refrigerant to maintain a temperature of a vehicle interior lower than an external temperature, and includes a compressor, a condenser, and an evaporator to form a circulation cycle of the refrigerant.

Such a compressor is a device for compressing and feeding a refrigerant, and is driven by the engine or a motor.

BACKGROUND ART [0002] A reciprocating compressor is a device for compressing a refrigerant by reciprocating motion of a piston, and a swash plate type compressor is typical. The swash plate type compressor is provided with a disk-shaped swash plate on a drive shaft which receives the power of the engine in a state where the inclination angle is changed or fixed so as to correspond to the rotation of the drive shaft, and a shoe Are reciprocated linearly within a plurality of cylinder bores formed in the cylinder block, thereby sucking the refrigerant gas, compressing and discharging the refrigerant gas.

In addition, in the course of sucking, compressing and discharging the refrigerant gas, a valve plate is provided between the housing and the cylinder block for interrupting suction and discharge of the refrigerant gas.

Further, in the case of a double-head swash plate type compressor, the front and rear housing blocks are divided into a front cylinder block and a rear cylinder block, respectively. The front and rear housings are hermetically sealed before and after the front and rear cylinder blocks. A suction port through which the refrigerant flows is formed.

In addition, suction and discharge mufflers for pulsation and noise reduction of the suction / discharge refrigerant are formed in the front and rear cylinder blocks.

Among them, the suction muffler is used to reduce the pulsation at the start of the compressor.

However, in the conventional swash plate type compressor, the suction muffler is formed as a separate space (chamber) on the outer circumferential surface of the cylinder block, thereby increasing the overall size of the compressor.

Further, when the suction port is formed in the housing, a separate connecting passage for connecting the suction port and the suction muffler is added, which increases the manufacturing cost.

On the other hand, a muffler mounted on the inlet side of the suction port through a separate piping is also disclosed, but it is also difficult to improve the problem of an increase in cost and an increase in the size of the compressor.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-described problems of the related art, and it is an object of the present invention to provide a compressor of a swash plate type that reduces noise and vibration by suppressing the pulsation of a suction refrigerant as much as possible without increasing the size of the compressor. Compressor.

According to an aspect of the present invention, there is provided a swash plate compressor including a housing, a cylinder block having a plurality of cylinder bores formed therein and coupled to the housing, and a swash plate including a piston reciprocably received in the cylinder bores, A type compressor, comprising: a suction port formed in the housing; A suction chamber formed in the housing to connect the suction port and the cylinder bore; And a muffler cap installed in the suction chamber.

Further, the suction chamber and the muffler cap are spaced apart from each other, and a muffler is formed therebetween.

A muffler protruding toward the bottom of the suction chamber is formed in the muffler cap.

On the other hand, a refrigerant flow hole is formed in the muffler cap.

Further, the diameter of the refrigerant flow hole is formed to be smaller than the diameter of the suction port.

The diameter of the refrigerant flow hole is 0.5 times or more of the diameter of the suction port.

In the meantime, the muffler cap is provided with a step fixing protrusion, and the suction chamber is formed with a step fixing groove into which the step fixing protrusion is inserted.

Further, the muffler cap is characterized in that a plurality of partitions extending from the inner circumferential surface of the muffler cap in the center direction are formed.

A chamber is formed between the plurality of partition walls, and the chamber corresponds to each of the cylinder bores.

The cross-sectional area of the chamber inlet formed by the plurality of partitions is smaller than the cross-sectional area of the interior of the chamber.

Further, the muffler is characterized in that a notch is formed in the refrigerant introduction direction of the suction port.

According to the swash plate type compressor according to the present invention, the muffler cap is installed in the suction chamber to form the muffler, thereby suppressing the pulsation of the suction refrigerant as much as possible, thereby reducing noise and vibration.

That is, only the muffler cap is added to the existing parts of the compressor to serve as a muffler, so that the overall size of the compressor is not increased.

Accordingly, the muffler is integrally formed in the suction chamber, thereby reducing the size, installation space, and manufacturing cost of the compressor compared to a conventional compressor having separate suction and discharge mufflers.

1 is a longitudinal sectional view showing a swash plate type compressor according to the present invention.
2 is an exploded perspective view showing a rear housing for explaining a suction muffler according to the first embodiment of FIG.
3 is a perspective view showing the muffler cap of Fig.
4 is a cross-sectional view taken along the line 'a-a' in FIG.
FIG. 5 is an exploded perspective view showing a rear housing for explaining a suction muffler according to the second embodiment of FIG. 1; FIG.
FIG. 6 is a perspective view showing a muffler cap according to the third embodiment of FIG. 1. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view illustrating a rear housing for explaining a suction muffler according to the first embodiment of FIG. 1, and FIG. 3 is a perspective view of the muffler of FIG. 2, FIG. 5 is an exploded perspective view showing a rear housing for explaining a suction muffler according to the second embodiment of FIG. 1, and FIG. 5 is an exploded perspective view showing a rear housing for explaining a suction muffler according to the second embodiment of FIG. 6 is a perspective view showing a muffler cap according to the third embodiment of FIG.

1 to 6, a swash plate type compressor (C) according to the present invention includes a cylinder block 110 having a plurality of cylinder bores 100, a cylinder bore 100 of the cylinder block 110, The front and rear housings 130 and 140 are hermetically coupled to the front and rear of the cylinder block 110, respectively. The front and rear housings 130 and 140 are coupled to the front and rear ends of the cylinder block 110, A swash plate 160 interlocked with the driving shaft 150 and the piston 120 and the swash plate 160 interposed between the cylinder block 110 and the front and rear housings 130 and 140, And a valve plate 190 interposed therebetween.

First, a suction chamber 131 and a discharge chamber 132 are formed in the front and rear housings 130 and 140, respectively.

The cylinder block 110 is interposed between the front and rear housings 130 and 140 and includes a front cylinder block 111 on the side of the front housing 130 and a rear cylinder block 112 on the side of the rear housing 140 .

A swash plate chamber 101 is formed between the front cylinder block 111 and the rear cylinder block 112 and a plurality of cylinder bores 100 are formed in each of the cylinder blocks 111 and 112 so that the piston 120 reciprocates. Is formed.

Between the boss 161 of the swash plate 160 and the cylinder block 110, a thrust bearing (not shown) is mounted between the boss 161 and the cylinder block 110 to support the swash plate 160 during the suction stroke and the compression stroke of the piston 120 by the rotation of the swash plate 160 180 are installed.

Hereinafter, a structure for reducing the suction pulsation of the compressor according to the present invention will be described with reference to the drawings.

2 to 4, the compressor pulsation reduction structure according to the first embodiment of the present invention includes a suction port 210 formed in the rear housing 140, a suction port 210 formed on the suction port 210, A suction chamber 131 formed in the rear housing 140 to connect the suction chamber 100 and a muffler cap 220 installed in the suction chamber 131.

The suction chamber 131 and the muffler cap 220 are spaced apart from each other as shown in FIG. 4, and a muffler 230 is formed therebetween. The muffler 230 reduces pulsation and noise of the suction refrigerant.

A refrigerant flow hole 221 is formed in the muffler cap 220 and a diameter of the refrigerant flow hole 221 is smaller than a diameter of the suction port 210. Specifically, the diameter of the refrigerant flow hole 221 is preferably 0.5 times or more the diameter of the suction port 210.

Of course, the cross-sectional area of the refrigerant flow hole 221 is smaller than the cross-sectional area of the muffler 230.

The muffler cap 220 is formed with a step fixing protrusion 222 on the outer side and a step fixing groove 131a into which the step fixing protrusion 222 is inserted is formed in the suction chamber 131. The bottom surface of the muffler cap 220 and the bottom surface of the suction chamber 131 are spaced apart from each other by the engagement of the step fixing projections 222 and the step fixing grooves 131a to form the muffler 230 do.

A plurality of fixing protrusions 131b formed in the suction chamber 131 and a through hole 225 formed in the muffler cap 220 for inserting the fixing protrusions 131b may be coupled to the muffler cap 220, The bottom surface of the suction chamber 131 and the bottom surface of the suction chamber 131 may be spaced from each other to form the muffler 230.

As a result, pulsation of the suction refrigerant is reduced in the process of reducing-expanding-expanding the suction refrigerant while passing through the suction port 210 - the muffler 230 - the refrigerant flow hole 221.

Meanwhile, the muffler 230 forms a resonance space therein to transmit the reduced noise to the cylinder bore 100 in the process of moving the suction refrigerant.

According to the present invention, since the muffler cap 220 is installed in the suction chamber 131 to suppress the pulsation of the suction refrigerant as much as possible, noise and vibration are reduced. That is, only the muffler cap 220 is added to the existing parts of the compressor to serve as a muffler, so that the overall size of the compressor is not increased.

Accordingly, the muffler 230 is integrally formed in the suction chamber, thereby reducing the size, installation space, and manufacturing cost of the compressor compared with a conventional compressor having separate suction and discharge mufflers.

Hereinafter, other embodiments of the pulsation reduction structure according to the present invention will be described using the same reference numerals as those of the first embodiment, and a detailed description thereof will be omitted.

5, in the pulsation reduction structure according to the second embodiment of the present invention, a plurality of partition walls 223 extending in the center direction from the inner peripheral surface of the muffler cap 220 are formed in the muffler cap 220 And a chamber 224 is formed between the plurality of partition walls 223, and the chamber 224 corresponds to the cylinder bore 100, respectively.

At this time, the cross-sectional area of the chamber inlet 224a formed by the plurality of partitions 223 is smaller than the cross-sectional area inside the chamber 224. Of course, the sectional area of the refrigerant flow hole 221 is larger than the inlet cross-sectional area of the chamber 224.

As a result, the pulsation of the suction refrigerant is reduced once again in the course of the expansion-reduction-expansion of the suction refrigerant as it passes through the refrigerant inflow hole 221 - the chamber inlet 224a - the chamber 224. Thereafter, the suction refrigerant whose pulsation is reduced is sucked into the cylinder bore 100 corresponding to each chamber 224.

6, in the pulsation reduction structure according to the third embodiment of the present invention, a muffler 230 'protruding toward the bottom of the suction chamber 131 is formed in the muffler cap 220, The muffler 230 'is provided with a notch 231' in the refrigerant introduction direction of the suction port 210.

That is, the pulsation of the suction refrigerant is reduced in the process of reducing-expanding-expanding the suction refrigerant while passing through the suction port 131 - the muffler 230 '- the refrigerant inflow hole 221.

The partition wall 223 and the chamber 224 of the second embodiment may be applied to the muffler cap 220 in the same manner.

Although the preferred embodiments of the present invention have been described in detail, the technical scope of the present invention is not limited to the above-described embodiments, but should be construed according to the claims. It will be understood by those skilled in the art that many modifications and variations are possible without departing from the scope of the present invention.

For example, although the double-head swash plate type compressor has been described in the foregoing description and drawings, the present invention is not limited thereto, and the present invention can be similarly applied to a single swash plate type compressor and a capacity variable type swash plate type compressor.

100 - cylinder bore 110 - cylinder block
111 - front cylinder block 112 - rear cylinder block
120 - Piston 130 - Front housing
140 - Rear housing 150 - Drive shaft
160 - swash plate 210 - suction port
220 - muffler cap 230 - muffler

Claims (11)

A cylinder block 110 coupled to the housings 130 and 140 and a piston 120 accommodated in the cylinder bore 100 such that the cylinder bores 100 reciprocate In the swash plate type compressor,
A suction port 210 formed in the housing 130, 140;
A suction chamber 131 formed in the housing 130, 140 to connect the suction port 210 and the cylinder bore 100; And
And a muffler cap (220) installed in the suction chamber (131)
Wherein the muffler cap (220) is formed with a plurality of partition walls (223) extending in the center direction from an inner peripheral surface thereof.
The method according to claim 1,
Wherein the suction chamber (131) and the muffler cap (220) are spaced apart from each other and a muffler (230) is formed therebetween.
The method according to claim 1,
And a muffler (230 ') protruding toward the bottom of the suction chamber (131) is formed in the muffler cap (220).
The method according to claim 1,
And a refrigerant flow hole (221) is formed in the muffler cap (220).
5. The method of claim 4,
Wherein a diameter of the refrigerant flow hole (221) is smaller than a diameter of the suction port (210).
6. The method of claim 5,
Wherein the diameter of the refrigerant flow hole (221) is at least 0.5 times the diameter of the suction port (210).
The method according to claim 1,
A step fixing protrusion 222 is formed in the muffler cap 220 and a step fixing groove 131a into which the step fixing protrusion 222 is inserted is formed in the suction chamber 131. [ .
delete The method according to claim 1,
Wherein a chamber (224) is formed between the plurality of partitions (223), and the chamber (224) corresponds to a cylinder bore (100).
10. The method of claim 9,
Sectional area of an inlet (224a) of the chamber (224) formed by the plurality of partitions (223) is smaller than a cross-sectional area of the interior of the chamber (224).
The method of claim 3,
And a cutout portion (231 ') is formed in the muffler (230') in the refrigerant introduction direction of the suction port (210).
KR1020110039322A 2011-04-27 2011-04-27 Swash plate type compressor KR101841279B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020110039322A KR101841279B1 (en) 2011-04-27 2011-04-27 Swash plate type compressor
PCT/KR2012/003221 WO2012148180A2 (en) 2011-04-27 2012-04-26 Swashplate-type compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110039322A KR101841279B1 (en) 2011-04-27 2011-04-27 Swash plate type compressor

Publications (2)

Publication Number Publication Date
KR20120121481A KR20120121481A (en) 2012-11-06
KR101841279B1 true KR101841279B1 (en) 2018-03-23

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Application Number Title Priority Date Filing Date
KR1020110039322A KR101841279B1 (en) 2011-04-27 2011-04-27 Swash plate type compressor

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WO (1) WO2012148180A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109653994A (en) * 2018-12-11 2019-04-19 珠海格力节能环保制冷技术研究中心有限公司 Head fixing device, compressor and the refrigeration equipment of compressor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04276192A (en) * 1991-03-05 1992-10-01 Matsushita Electric Ind Co Ltd Compressor
JP3179296B2 (en) * 1994-08-11 2001-06-25 株式会社ゼクセルヴァレオクライメートコントロール Hinge ball of variable displacement rocking plate compressor
JPH09256949A (en) * 1996-03-25 1997-09-30 Zexel Corp Refrigerant compressor
JP4759771B2 (en) * 2001-02-21 2011-08-31 株式会社ヴァレオジャパン Compressor

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WO2012148180A2 (en) 2012-11-01
WO2012148180A3 (en) 2013-03-28
KR20120121481A (en) 2012-11-06

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