KR20070092053A - Crankshaft supporting device for compressor - Google Patents

Crankshaft supporting device for compressor Download PDF

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Publication number
KR20070092053A
KR20070092053A KR1020060021966A KR20060021966A KR20070092053A KR 20070092053 A KR20070092053 A KR 20070092053A KR 1020060021966 A KR1020060021966 A KR 1020060021966A KR 20060021966 A KR20060021966 A KR 20060021966A KR 20070092053 A KR20070092053 A KR 20070092053A
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KR
South Korea
Prior art keywords
compressor
lower bearing
rotating shaft
rotation shaft
coupled
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KR1020060021966A
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Korean (ko)
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KR101214484B1 (en
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백기대
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엘지전자 주식회사
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Priority to KR1020060021966A priority Critical patent/KR101214484B1/en
Publication of KR20070092053A publication Critical patent/KR20070092053A/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/025—Retaining or protecting walls made up of similar modular elements stacked without mortar
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

Abstract

A rotation shaft supporting device for a compressor is provided to interpose a movable elastic element between a supporting element and a lower bearing for preventing a load of the lower bearing in association with rotation force of a rotation shaft, thereby improving the reliability of the compressor. A rotation shaft supporting device for a compressor includes a supporting element mounted in a casing, and having a housing(63) coupled with the lower bearing and a lower frame(64) fixed with the housing by bolts(B) or welding. A lower bearing(61) is inserted into the supporting element, and rotatively coupled with a rotation shaft(37) of a driving motor for rotating together with the rotation shaft to transmit rotation force to a compression part, wherein the lower frame of the supporting element supports a lower area of the rotation shaft. An elastic element(70) is interposed between the supporting element and the lower bearing for elastically supporting the rotation shaft in the radial direction. The supporting element has a housing(63) coupled with the lower bearing and a lower frame(64) supporting the rotation shaft and the lower bearing and fixed with the housing by bolts(B) or welding.

Description

압축기의 회전축 지지장치{CRANKSHAFT SUPPORTING DEVICE FOR COMPRESSOR}Rotary shaft support device of compressor {CRANKSHAFT SUPPORTING DEVICE FOR COMPRESSOR}

도 1은 종래 압축기의 일례를 보인 단면도,1 is a cross-sectional view showing an example of a conventional compressor,

도 2는 도 1의 회전축 하부영역의 지지장치를 확대 도시한 단면도,Figure 2 is an enlarged cross-sectional view of the support device of the lower region of the rotation shaft of FIG.

도 3은 도 2의 분해 사시도,3 is an exploded perspective view of FIG. 2;

도 4는 본 발명의 일 실시예에 따른 탄성부재에 하부베어링이 결합되는 구조를 보인 사시도,Figure 4 is a perspective view showing a structure in which the lower bearing is coupled to the elastic member according to an embodiment of the present invention,

도 5는 본 발명의 분해 사시도,5 is an exploded perspective view of the present invention;

도 6은 본 발명의 회전축 지지장치를 보인 단면도,6 is a cross-sectional view showing a rotating shaft support device of the present invention,

도 7은 본 발명의 다른 실시예에 따른 탄성부재를 보인 사시도.7 is a perspective view showing an elastic member according to another embodiment of the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

60: 회전축 61: 하부베어링60: rotating shaft 61: lower bearing

63: 하우징 64: 하부프레임63: housing 64: lower frame

70, 80: 탄성부재 B: 볼트70, 80: elastic member B: bolt

본 발명은 압축기의 회전축 지지장치에 관한 것으로서, 더욱 상세하게는 회 전축의 회전력에 따라 하부베어링에 걸리는 부하를 줄이도록 함으로써 마찰손실의 절감으로 인한 효율의 증대와, 그에 따른 하부베어링의 마모감소 및 진동방지로 압축기의 신뢰도를 향상시킬 수 있도록 한 압축기의 회전축 지지장치에 관한 것이다. The present invention relates to an apparatus for supporting a rotating shaft of a compressor, and more particularly, to reduce the load on the lower bearing according to the rotational force of the rotating shaft, thereby increasing the efficiency due to the reduction of friction loss, and thus reducing the wear of the lower bearing. The present invention relates to a rotating shaft support device of a compressor to prevent the vibration from improving the reliability of the compressor.

도 1은 종래 압축기의 일례를 보인 단면도이고, 도 2는 도 1의 회전축 하부영역의 지지장치를 확대 도시한 단면도이며, 도 3은 도 2의 분해 사시도이다.1 is a cross-sectional view illustrating an example of a conventional compressor, and FIG. 2 is an enlarged cross-sectional view of a supporting device of a lower region of a rotating shaft of FIG. 1, and FIG. 3 is an exploded perspective view of FIG. 2.

이에 도시된 바와 같이, 압축기는 내부에 밀폐된 수용공간을 형성하는 케이싱(11)과, 케이싱(11)의 내부에 수용되어 냉매를 압축하는 압축부(21)와, 케이싱(11)의 내부에 설치되어 압축부(21)에 구동력을 제공하는 구동모터를 구비하고 있다.As shown in the drawing, the compressor includes a casing 11 forming a sealed space therein, a compression part 21 accommodated in the casing 11 to compress the refrigerant, and a casing 11 inside the casing 11. It is provided with a drive motor which is provided and provides a driving force to the compression unit (21).

상기 케이싱(11)의 일측에는 냉매를 흡입 및 토출할 수 있도록 흡입관(13) 및 토출관(15)이 구비되어 있으며, 케이싱(11)의 내부에는 압축부(21) 및 구동모터를 지지할 수 있도록 상하방향을 따라 이격되게 상부프레임(17) 및 하부프레임(64)이 설치되어 있다.One side of the casing 11 is provided with a suction tube 13 and a discharge tube 15 to suck and discharge the refrigerant, and the compression unit 21 and the driving motor can be supported inside the casing 11. The upper frame 17 and the lower frame 64 are installed so as to be spaced apart in the vertical direction.

상기 압축부(21)는 인벌류트형상의 랩(24)을 구비하여 상부프레임(17)에 고정설치되는 고정스크롤(23)과, 인벌류트형상의 랩(26)을 구비하여 고정스크롤(23)에 대해 선회가능하게 결합되는 선회스크롤(25)을 구비하고 있다.The compression unit 21 has an involute-shaped wrap 24 and is provided with a fixed scroll 23 fixed to the upper frame 17 and an involute-shaped wrap 26 and a fixed scroll 23. It is provided with a pivoting scroll (25) which is pivotally coupled with respect to.

상기 구동모터는 케이싱(11)의 내부에 고정 배치되는 고정자(33)와, 고정자(33)의 내부에 회전축(37)을 중심으로 회전가능하게 설치되는 회전자(35)로 구성되어 있다. 상기 회전축(37)의 상단에는 선회스크롤(25)이 고정스크롤(23)에 대해 선회할 수 있도록 회전중심으로부터 소정 편심되게 형성되어 선회스크롤(25)의 저부 에 상대운동 가능하게 결합되는 편심부(38)가 형성되어 있으며, 상부프레임(17) 및 하부프레임(64)에는 회전축(37)의 상부영역 및 하부영역을 각각 회전가능하게 지지하는 상,하부베어링(18, 61)이 각각 형성되어 있다. 회전자(35)는 다수의 철심(미도시)을 원통모양으로 적층한 후 그 양단을 엔드링(36)으로 지지하여 회전축(37)을 압입 고정하고 있다.The drive motor is composed of a stator 33 fixedly disposed inside the casing 11, and a rotor 35 rotatably installed about the rotation shaft 37 in the stator 33. An eccentric portion formed on the upper end of the rotating shaft 37 so as to be rotated relative to the bottom of the rotating scroll 25 by being formed eccentrically from the center of rotation so that the rotating scroll 25 can pivot with respect to the fixed scroll 23 ( 38 is formed, and upper and lower bearings 18 and 61 are respectively formed on the upper frame 17 and the lower frame 64 to rotatably support the upper region and the lower region of the rotating shaft 37, respectively. . The rotor 35 stacks a plurality of iron cores (not shown) in a cylindrical shape and supports both ends thereof with an end ring 36 to press-fit the rotating shaft 37.

상기 회전축(37)의 축선방향을 기준으로 엔드링(36)의 상단 및 하단에는 회전 시 편심부(38)에 의해 발생되는 회전 불균형으로 인한 압축기의 소음 및 진동을 상쇄시킬 수 있도록 밸런스웨이트(40, 50)가 용접(미도시)이나 볼트(미도시) 등의 방법에 의해 각각 고정결합되어 있다.The balance weight 40 is provided at the upper and lower ends of the end ring 36 on the basis of the axial direction of the rotating shaft 37 to offset the noise and vibration of the compressor due to the imbalance of rotation caused by the eccentric 38. , 50 are fixedly coupled to each other by a method such as welding (not shown) or bolt (not shown).

한편, 종래의 회전축 지지장치는 상기 하우징(63)이 하부프레임(64)에 볼트(B)로 고정결합되고 하부베어링(61)이 하우징(63)에 압입 결합한다. On the other hand, the conventional rotating shaft support device is the housing 63 is fixedly coupled to the lower frame 64 with a bolt (B) and the lower bearing 61 is press-fitted to the housing 63.

그리고 회전축(37)의 하단부를 하부베어링(61)에 회전가능하도록 결합시킨 후, 하부프레임(64)의 측면을 케이싱(11)의 내측에 용접결합하여 회전축(37)의 회전운동을 지지하여 이루어진다.Then, the lower end of the rotating shaft 37 is rotatably coupled to the lower bearing 61, and then the side of the lower frame 64 is welded to the inside of the casing 11 to support the rotational movement of the rotating shaft 37. .

이때 하부베어링(61)이 하우징(63)에 강제 압입되는 과정에서 회전축(37)의 회전중심에서 일부 틀어지는 경우가 발생한다. 이 상태에서 운전이 되면 회전축(37)의 회전력에 의해 하부베어링(61)에 부하가 발생되고 그로 인해 압축기의 효율이 저하되는 문제점이 있다.At this time, the lower bearing 61 is partially twisted at the rotation center of the rotation shaft 37 in the process of forcibly pressed into the housing 63. When operating in this state, there is a problem in that a load is generated on the lower bearing 61 by the rotational force of the rotary shaft 37, thereby lowering the efficiency of the compressor.

또한, 회전축(37)과의 마찰로 인해 하부베어링(61)의 내면이 마모가 되고 그 과정에서 압축기에서 진동이 발생하는 문제점이 있다.In addition, there is a problem that the inner surface of the lower bearing 61 is worn due to friction with the rotating shaft 37, and vibration occurs in the compressor in the process.

본 발명의 목적은 회전축 지지장치를 개선함으로써 하부베어링 내면에서 발생하는 마찰과 진동을 방지하여 압축기의 효율증대 및 신뢰도를 향상시킬 수 있도록 하는 압축기의 회전축 지지장치를 제공하는 것이다. An object of the present invention is to provide a rotary shaft support device of the compressor to improve the efficiency and reliability of the compressor by preventing the friction and vibration occurring in the lower bearing inner surface by improving the rotary shaft support device.

본 발명의 목적을 달성하기 위하여, 케이싱 내부에 설치되는 지지부재와, 구동모터의 회전자에 결합되어 회전하면서 그 회전력을 압축부에 전달하는 회전축이 회전가능하게 결합되어 상기 지지부재에 삽입되는 하부베어링과, 상기 지지부재와 하부베어링 사이에 개재되어 상기 회전축의 반경방향을 탄력적으로 지지하는 탄성부재를 포함하여 구성되는 압축기의 회전축 지지장치를 제공한다.In order to achieve the object of the present invention, the support member is installed in the casing, and the rotating shaft coupled to the rotor of the drive motor to transmit the rotational force to the compression portion rotatably coupled to the lower portion inserted into the support member It provides a rotary shaft support device for a compressor comprising a bearing and an elastic member interposed between the support member and the lower bearing to elastically support the radial direction of the rotary shaft.

이하, 본 발명에 의한 압축기의 회전축 지지장치를 첨부도면에 도시한 일 실시예에 의거하여 상세하게 설명한다.Hereinafter, the rotating shaft support device of the compressor according to the present invention will be described in detail based on the embodiment shown in the accompanying drawings.

도 4는 본 발명의 일 실시예에 따른 탄성부재에 하부베어링이 결합되는 구조를 보인 사시도이고, 도 5는 본 발명의 분해 사시도이며, 도 6은 본 발명의 회전축 지지장치를 보인 단면도이다.Figure 4 is a perspective view showing a structure in which the lower bearing is coupled to the elastic member according to an embodiment of the present invention, Figure 5 is an exploded perspective view of the present invention, Figure 6 is a cross-sectional view showing a rotating shaft support device of the present invention.

이하 종래와 동일한 구성은 동일한 참조부호를 부여하였다.Hereinafter, the same components as in the prior art have the same reference numerals.

전술한 바와 같이, 압축기는 내부에 밀폐된 수용공간을 형성하는 케이싱(11)과, 서로 상대운동가능하게 결합된 고정스크롤(23) 및 선회스크롤(25)을 구비하여 케이싱(11)의 내부 상부영역에 수용되어 냉매를 압축하는 압축부(21)와, 케이싱(11)의 내부 압축부(21)의 하측에 배치되어 압축부(21)에 구동력을 제공하는 구동 모터를 구비하고 있다. As described above, the compressor has a casing 11 to form a sealed receiving space therein, and a fixed scroll 23 and a pivoting scroll 25 coupled to each other so as to be movable relative to each other. A compression unit 21 accommodated in the area to compress the refrigerant and a drive motor disposed below the internal compression unit 21 of the casing 11 to provide a driving force to the compression unit 21 are provided.

상기 구동모터는 케이싱(11)의 내부에 고정 배치되는 고정자(33)와, 고정자(33)의 내부에 회전축(37)을 중심으로 회전가능하게 배치되는 회전자(35)로 구성되어 있으며, 회전축(37)의 상단에는 선회스크롤(25)을 편심구동시킬 수 있도록 편심부(38)가 형성되어 있다.The drive motor is composed of a stator 33 fixedly disposed inside the casing 11, and a rotor 35 rotatably disposed about the rotation shaft 37 inside the stator 33. An eccentric portion 38 is formed at the upper end of the 37 so as to eccentrically drive the turning scroll 25.

한편, 상부프레임(17) 및 하부프레임(64)에는 회전축(37)의 상부영역 및 하부영역을 각각 회전가능하게 지지하는 상,하부베어링(18, 61)이 각각 형성되어 있다.On the other hand, the upper frame 17 and the lower frame 64 are formed with upper and lower bearings 18 and 61 respectively rotatably supporting the upper region and the lower region of the rotation shaft 37.

본 발명의 회전축 지지장치는 케이싱(11) 내부에 설치되는 지지부재와, 구동모터의 회전자(35)에 결합되어 회전하면서 그 회전력을 압축부(21)에 전달하는 회전축(37)이 회전가능하게 결합되어 상기 지지부재에 삽입되는 하부베어링(61)과, 상기 지지부재와 하부베어링(61) 사이에 개재되어 상기 회전축(37)의 반경방향을 탄력적으로 지지하는 탄성부재(70)를 포함하여 구성된다.The rotating shaft support device of the present invention is rotatable, the support member is installed in the casing 11 and the rotating shaft 37 is coupled to the rotor 35 of the drive motor to transmit the rotational force to the compression unit 21 while rotating. A lower bearing 61 coupled to the support member and interposed between the support member and the lower bearing 61 to elastically support a radial direction of the rotation shaft 37. It is composed.

상기 지지부재는 상기 탄성부재(70)가 결합된 상기 하부베어링(61)이 강제로 압입 결합되도록 하는 하우징(63)과, 상기 회전축(37)의 하부영역을 지지하고 상기 하우징(63)이 볼트(B)나 용접(미도시) 등으로 고정 결합되는 하부프레임(64)을 포함하여 구성된다.The support member supports a housing 63 to force-fit the lower bearing 61 to which the elastic member 70 is coupled, and a lower region of the rotation shaft 37, and the housing 63 is bolted. It is configured to include a lower frame (64) fixedly coupled by (B) or welding (not shown).

상기 탄성부재(70)는 평면투영시 그 내외측이 파형 단면형상으로 형성되어 그 내측의 일부가 상기 하부베어링(61)과 접촉하고 그 외측의 일부가 상기 하우징(63)에 접촉하도록 형성하는 것이 바람직하다.The elastic member 70 is formed so that the inner and outer sides of the elastic projection 70 in the shape of a cross-sectional shape so that a portion of the inner side in contact with the lower bearing 61 and a portion of the outer side in contact with the housing 63. desirable.

상기 하부베어링(61)은 상기 탄성부재(70) 내부에 압입 결합되어 고정되는 구조이다.The lower bearing 61 is a structure that is press-fitted into the elastic member 70 and fixed.

이러한 구성에 의한 본 발명의 회전축 지지장치의 조립순서 및 작용효과는 다음과 같다.The assembly procedure and the effect of the rotary shaft support device of the present invention by such a configuration are as follows.

하부프레임(64)에 하우징(63)을 삽입한 후 볼트(B)로 고정 결합한다.Insert the housing 63 into the lower frame 64 and then fixedly fixed with the bolt (B).

그런 다음 탄성부재(70)에 하부베어링(61)을 강제 압입방식으로 고정 결합한 후, 이것을 하우징(63)에 압입하여 고정시킨다.Then, after the lower bearing 61 is fixedly coupled to the elastic member 70 by a forced press method, it is press-fitted into the housing 63 to fix it.

마지막으로 회전축(37)의 하단부를 하부베어링(61)에 회전가능하도록 결합시킨 후, 하부프레임(64)의 측면을 케이싱(11)의 내측에 용접결합하면 본 발명의 회전축 지지장치가 완성이 된다.Finally, after the lower end of the rotating shaft 37 is coupled to the lower bearing 61 to be rotatable, the side of the lower frame 64 is welded to the inner side of the casing 11 to complete the rotating shaft support device of the present invention. .

상기와 같은 회전축 지지장치는 회전축(37)이 회전가능하게 결합되는 하부베어링(61)이 상기 하우징(63)에 강제 압입되는 과정에서 회전축(37)의 회전중심에서 일부 틀어지더라도 상기 지지부재와 하부베어링(61) 사이에 개재되는 탄성부재(70)의 탄성으로 인해 지지장치의 유동성을 확보할 수 있어 압축기의 신뢰성을 높일 수 있다.The rotary shaft support device as described above may include the support member even if the lower bearing 61 to which the rotary shaft 37 is rotatably coupled is distorted in the center of rotation of the rotary shaft 37 while being forced in the housing 63. Due to the elasticity of the elastic member 70 interposed between the lower bearing 61 can secure the fluidity of the support device can increase the reliability of the compressor.

한편, 상기에서는 본 발명의 일 실시예로서 상기 탄성부재(70)가 평면투영시 그 내외측이 파형 단면형상으로 형성되는 구조로 설명하였으나, 이에 한정하지 않고, 다른 실시예로서 도 7에 도시된 바와 같이 외면이 일부 절개되어 돌출된 다수의 절개탄성부(81)가 포함된 탄성부재(80)로 구성될 수도 있다.On the other hand, in the above described as an embodiment of the present invention, the elastic member 70 has a structure in which the inner and outer sides are formed in a cross-sectional shape in the plane projection, but is not limited to this, shown in Figure 7 as another embodiment As described above, the outer surface may be partially cut, and may include an elastic member 80 including a plurality of cut elastic parts 81 protruding.

본 발명에 의한 압축기의 회전축 지지장치는 지지부재와 하부베어링 사이에 유동성의 탄성부재가 개재됨으로써 회전축의 회전력에 의한 하부베어링의 부하를 방지하여 압축기의 신뢰성를 높일 수 있고, 하부베어링의 내면의 마모되는 과정에서 발생하는 압축기의 진동을 방지하는 효과가 있다.The rotating shaft support apparatus of the compressor according to the present invention can increase the reliability of the compressor by preventing the load of the lower bearing due to the rotational force of the rotating shaft by interposing a flexible elastic member between the support member and the lower bearing, wear of the inner surface of the lower bearing There is an effect of preventing the vibration of the compressor generated in the process.

Claims (6)

케이싱 내부에 설치되는 지지부재와,A support member installed inside the casing, 구동모터의 회전자에 결합되어 회전하면서 그 회전력을 압축부에 전달하는 회전축이 회전가능하게 결합되어 상기 지지부재에 삽입되는 하부베어링과,A lower bearing which is coupled to the rotor of the drive motor and is rotated and is rotatably coupled to the support member to transmit the rotational force to the compression unit; 상기 지지부재와 하부베어링 사이에 개재되어 상기 회전축의 반경방향을 탄력적으로 지지하는 탄성부재를 포함하여 구성되는 압축기의 회전축 지지장치.And a resilient member interposed between the support member and the lower bearing to elastically support the radial direction of the rotary shaft. 제 1항에 있어서,The method of claim 1, 상기 지지부재는 상기 탄성부재가 결합된 상기 하부베어링이 압입 결합되도록 하는 하우징과,The support member includes a housing for press-fitting the lower bearing to which the elastic member is coupled; 케이싱에 설치되어 상기 회전축이 지지되도록 그 내부에 상기 하우징이 고정 결합되는 하부프레임을 포함하여 구성되는 압축기의 회전축 지지장치.And a lower frame installed in a casing, the lower frame having the housing fixedly coupled therein to support the rotating shaft. 제 1항에 있어서, The method of claim 1, 상기 탄성부재는 평면투영시 그 내외측이 파형 단면형상으로 형성되는 압축기의 회전축 지지장치.The elastic member is a rotating shaft support device of the compressor is formed in a cross-sectional shape of the inside and the outside when the plane projection. 제 1항에 있어서,The method of claim 1, 상기 하부베어링은 상기 탄성부재 내부에 압입 결합되는 압축기의 회전축 지 지장치.The lower bearing is a rotation shaft support device of the compressor is press-fitted into the elastic member. 제 1항에 있어서,The method of claim 1, 상기 탄성부재는 외면이 일부 절개되어 돌출된 다수의 절개탄성부를 포함하여 구성되는 압축기의 회전축 지지장치.The elastic member is a rotating shaft support device of the compressor is configured to include a plurality of incision elastic parts protruded by the outer surface. 제 1항에 있어서,The method of claim 1, 상기 압축기는 스크롤압축기인 것을 특징으로 하는 압축기의 회전축 지지장치.The compressor is a rotating shaft support device, characterized in that the scroll compressor.
KR1020060021966A 2006-03-08 2006-03-08 Crankshaft supporting device for compressor KR101214484B1 (en)

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Publication number Priority date Publication date Assignee Title
KR20170131633A (en) * 2015-04-10 2017-11-29 에머슨 클리메이트 테크놀로지즈 인코퍼레이티드 Spring Compressor Lower Bearing

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KR100208092B1 (en) 1997-07-29 1999-07-15 Samsung Electronics Co Ltd Scroll compressor
JP4810758B2 (en) 2001-06-11 2011-11-09 株式会社ジェイテクト Alignment spring for clutch release bearing
JP2005140064A (en) 2003-11-10 2005-06-02 Hitachi Ltd Electric compressor
JP2005233342A (en) 2004-02-20 2005-09-02 Toyota Industries Corp Bearing device and scroll type fluid machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170131633A (en) * 2015-04-10 2017-11-29 에머슨 클리메이트 테크놀로지즈 인코퍼레이티드 Spring Compressor Lower Bearing
US10344804B2 (en) 2015-04-10 2019-07-09 Emerson Climate Technologies, Inc. Scroll compressor lower bearing

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