JPS60206995A - Vacuum pump - Google Patents
Vacuum pumpInfo
- Publication number
- JPS60206995A JPS60206995A JP6452784A JP6452784A JPS60206995A JP S60206995 A JPS60206995 A JP S60206995A JP 6452784 A JP6452784 A JP 6452784A JP 6452784 A JP6452784 A JP 6452784A JP S60206995 A JPS60206995 A JP S60206995A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- rotor
- vane
- vacuum pump
- side plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/348—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the vanes positively engaging, with circumferential play, an outer rotatable member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業−１−の利用分野
本発明は、ベーンで作動されるタイプの真空ポンプの改
良に係り、特にそのベーンとシリンダとの摩擦を軽減で
きるようにしたものに関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Application of Industry-1- The present invention relates to an improvement of a vane-operated vacuum pump, and in particular to a vacuum pump that can reduce the friction between the vane and cylinder. Regarding.
（ロ）従来技術
ベーン形真空ポンプでは、その突−ｔＥ、ｌ；を＋ｒ（
変するベーンを突設した回転子をシリンダ内に内接配置
するとともに、ベーンを回転子とともに回転させてベー
ンのｒｉｉｆ後に形成される仕ν）部屋の容積を減増さ
せ、この容積変化で吸排機能を発揮するように構成され
ている。ところで、この種へ一ンにより作動される真空
ポンプにあっては、ペー／が気密性を保持してシリンダ
内周面に摺接されることが作動上不可欠であるから、多
くの場合、その基端部を回転子に設けた格納溝にフリー
に挿入してベーンをＩＰ１転子に対しその半径方向にＵ
」没自在となし、これによりベーンの先端が常にシリン
ダ内周面に追従接触されるようにするのが普通である。(b) In the conventional vane type vacuum pump, the protrusion -tE,l; is +r(
A rotor with protruding vanes that changes is placed internally in the cylinder, and the vanes are rotated together with the rotor to decrease or increase the volume of the chamber formed after the vane RIIF, and this change in volume causes suction and exhaust. It is configured to perform its functions. By the way, in this type of vacuum pump operated by a cylinder, it is essential for the operation that the cylinder maintains airtightness and slides into contact with the inner circumferential surface of the cylinder. Freely insert the base end into the storage groove provided on the rotor and insert the vane in the radial direction of the IP1 trochanter.
It is common practice to make the vane retractable so that the tip of the vane is always in follow-up contact with the inner circumferential surface of the cylinder.
しかるに、かかる構成の真空ポンプでは、ベーン′が回
転子によって拘束されることなくその半径方ｌりに自由
に移動できるものであるから、回転子が高速回転される
高速運転状態ではベーンに強力な遠心力が付加されてベ
ーンが強くシリンダ内周面に押し付けられることになり
、この結果、その接触部に摩擦による損耗を来たして早
期に性能が低下したりあるいは作動不能となる耐用性が
短い問題があった。However, in a vacuum pump with such a configuration, the vanes are not constrained by the rotor and can move freely in the radial direction, so in high-speed operating conditions where the rotor rotates at high speed, the vanes have a strong force. Centrifugal force is applied and the vanes are strongly pressed against the cylinder inner circumferential surface, resulting in wear and tear on the contact area due to friction, leading to early performance deterioration or inoperability, resulting in short service life. was there.
（ハ）目的
本発明は、かかる点に着目してなされたもので、この種
ベーンを南する真空ポンプにおける特に−（−）に対す
るシリンダの接触支持機構を改良することにより、前記
のような遠心力に起因するバ・−７・とシリンダとの摩
擦問題を大幅に軽誠できるようにしたものを提供せんと
している。(C) Objective The present invention has been made with attention to this point, and by improving the contact support mechanism of the cylinder especially for - (-) in this type of vacuum pump that moves south of the vane, the above-mentioned centrifugal We aim to provide a device that can significantly reduce the problem of friction between the bar and the cylinder caused by force.
（ニ）構成
本発明は、この目的を達成するために５回転子と、この
回転子にその内周面を外接させて配置されるシリンダと
、基端部を前記回転子に設けた格納溝に挿入するととも
にその先端を前記シリンダの内周面に摺接させて該回転
子から各々半径方向に出没自在に突設される適数枚のベ
ーンと、前記回転シリンダ内の容積ｕ１変による吸排を
軸心方向で行なう吸排機構とを具備してなる真空ポンプ
であって、前記シリンダを前記回転子と偏心するその軸
心まわりに回転自由に支持したこ七を特徴としている。(d) Structure In order to achieve this object, the present invention includes a five-rotor, a cylinder disposed with its inner peripheral surface circumscribing the rotor, and a storage groove whose base end is provided in the rotor. A suitable number of vanes are inserted into the rotor and protrude from the rotor in a radial direction with their tips slidingly in contact with the inner circumferential surface of the cylinder. The vacuum pump is equipped with a suction/discharge mechanism that performs suction and discharge in the axial direction, and is characterized in that the cylinder is rotatably supported around its axis eccentric to the rotor.
（ホ）実施例 以下、本発明の一実施例を図面を参照して説明する。(e) Examples Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図、第２図は／に、発明に係るベーン形真空ポンプ
の構成を、Ｉべしている。図中、中心に位、％％：ｉ
Ｌ軸心０に配置される回転子１は、その両側に小径の回
転軸１′、ｌ゛を連設して両端のエンドプレート４．４
″に回転自由に支承されているとともに、その一端側よ
り図示矢印の方向に回転駆動される。この回転子ｌの外
周には、これにその内周面で外接するシリンダ２が回転
子ｌと偏心するその軸心０゛に配置されている。なお、
このシリンダ２はポンプ外周壁をなすケーシング５の内
面と適宜間隙をおいて、後述するように、その軸心Ｏ°
まわりに回転自由に支持されることになる。FIGS. 1 and 2 show the configuration of a vane-type vacuum pump according to the invention. In the figure, in the center, %%:i
The rotor 1, which is placed at the L axis 0, has small diameter rotating shafts 1' and 1' connected to each other on both sides thereof, and end plates 4.4 at both ends.
'', and is rotatably driven from one end side in the direction of the arrow shown in the figure.A cylinder 2, which is circumscribed by the inner peripheral surface of the rotor l, is attached to the outer periphery of the rotor l. It is located at its eccentric axis 0゛.
This cylinder 2 is arranged with an appropriate gap between the inner surface of the casing 5 that forms the outer circumferential wall of the pump, and its axial center is O°, as will be described later.
It is supported around the body so that it can rotate freely.
この回転子１とシリンダ２との間には１両者の間に形成
された空間を仕切る適数枚の、特に図示例では２枚のべ
一ノ３．３が回転子ｌ側がら１８０匹間隔で突設されて
いる。この各ベーン３は、その基端部３ｂを回転子１の
半径方向に設けた格納溝６に移動自由に挿入していると
ともに、適宜の円弾面に成形されたその先端３ａをシリ
ンダ内周面２ａに対してその肉厚一箇所で線接触的に接
触されるようにしている。したがって、ベーン３．３を
回〜： （−１と共に回転すると、低速運転状態では、
既存のものと同様にしてその先端３ａがシリンダ内周面
２ａに沿って摺接されるとともに、へ−ン３はその回転
子ｌがらの突出長を変えながら前記格納溝６から出没さ
れる。Between the rotor 1 and the cylinder 2, there are an appropriate number of plates partitioning the space formed between the two, in particular, in the example shown, two plates 3.3 are spaced 180 pieces apart from the rotor l side. It is installed protrudingly. Each vane 3 has its base end 3b inserted freely into a storage groove 6 provided in the radial direction of the rotor 1, and its tip 3a, which is formed into an appropriate circular elastic surface, is inserted into the inner periphery of the cylinder. It is arranged to be in line contact with the surface 2a at one point of its wall thickness. Therefore, rotating the vane 3.3 ~: (when rotating with -1, in low speed operating condition,
The tip 3a of the vane 3 is brought into sliding contact along the inner circumferential surface 2a of the cylinder in the same manner as the existing one, and the vane 3 is moved in and out of the housing groove 6 while changing the protrusion length of the rotor l.
しかして、ｉｉ７記シリンダ２は該シリンダ２の両側開
口端を閉塞する側板リング７．７にその両端で係合固持
８．８されている。そしで、この側板リング７．７は前
記エンドプレート４，４゛と適宜間隙をおいた状態で、
エンドプレート４．４゜に固定１０されかつ前記回転軸
１゛、１′を回転ｆＨ由に軸承しているところの偏心メ
タル１１．１１」―に各々回転自由に載架９．りされて
いる。したがって、この構成から前記シリンダ２は、側
板リング７．７を介し偏心メタル１１．１１に支持され
、かつ該側板リング７．７と共にこれら王者の共通する
軸心０°のまゎりに回転自由とされている。Thus, the cylinder 2 (ii7) is engaged and secured 8.8 at both ends to side plate rings 7.7 that close both open ends of the cylinder 2. Then, this side plate ring 7.7 is placed with an appropriate gap between it and the end plates 4, 4'.
Each of the racks 9. is mounted freely to rotate on the eccentric metal 11.11'' which is fixed 10 to the end plate 4.4° and supports the rotating shafts 1'' and 1' through rotation fH. has been removed. Therefore, due to this configuration, the cylinder 2 is supported by the eccentric metal 11.11 via the side plate ring 7.7, and can freely rotate together with the side plate ring 7.7 around the common axis of these two cylinders, 0°. has been done.
なお、その地図中１２はケーシング５のＬ部に開設した
該ポンプの吸気＋ｉ、１３．１３はポンプ内のｎｉＪ記
間隙部で上記吸気口１２と連通しているとともに、前記
格納溝６と合体すると該溝６内に吸気させる前記偏心メ
タル１１．１１に開設した吸気ボート、１４．１４はこ
の格納溝６．６内と′（−７３，３の各回転後方側に位
置する回転子１表面とを開通する吸気孔を示す。また、
１５．１５は各々チェック１６．１６を介、没してベー
／３．３の各回転前方側に位置するｉｐ］転子１表面か
らその内方に穿設された排気孔であって、各々回転子１
及びこれに連なる一方の前記回転軸ｌ゛の軸心長手方向
に穿設しである排気ボート１７と連通されている。すな
わち、かかる回転シリンダ２をもって回転子ｌの外周を
囲続せしめる構成のものにあっては、従来のベーン形ポ
ンプのように、シリンダ内の容積可変による吸排を行な
わしめるための吸排機構をそのシリンダ側に設置するこ
とは機構上困難であり、この点本発明に係るものでは」
二に其体的構成例を掲げたように、特にその吸υＦを軸
心方向で行なわＩ−める吸排機構を採用するようにして
いるのである。In addition, 12 in the map is the intake +i of the pump opened in the L part of the casing 5, and 13.13 is the niJ gap in the pump that communicates with the intake port 12 and is combined with the storage groove 6. Then, the intake boat 14.14 opened on the eccentric metal 11.11 to draw air into the groove 6 is located inside this storage groove 6.6 and on the rotor 1 surface located on the rear side of each rotation of '(-73, 3). It shows an intake hole that communicates with the
15.15 is an exhaust hole bored inwardly from the surface of the trochanter 1, which is sunk through the check 16.16 and located on the forward side of each rotation of the base/3.3. Rotor 1
It also communicates with an exhaust boat 17 which is perforated in the longitudinal direction of the axis of one of the rotating shafts l' connected thereto. That is, in a structure in which the rotary cylinder 2 is configured to surround the outer periphery of the rotor 1, the suction/discharge mechanism for suction/discharge by varying the volume inside the cylinder is installed in the cylinder, as in the conventional vane type pump. It is mechanically difficult to install it on the side, and in this respect the present invention does not
As shown in the second example of the body structure, a suction/discharge mechanism is adopted in which the suction (F) is performed in the axial direction.
汐に、この真空ポンプの特にべ−７３とシリンダ２との
相対的な作動を、それによる効果と共に、悦Ｑ１．ｌす
る。I would like to explain the relative operation of this vacuum pump, especially between base 73 and cylinder 2, as well as the effects thereof, as well as Yue Q1. I do it.
このポツプでは回転子１を回転すると、ベー７３．３に
遠心力が付ｒｊ−されて、その先端３ａがシリンダ内周
面２ａに押引けられる。そして、低速Ｖ！！転の状態で
はまだベーン３，３とシリンダ２との摩擦力は微小であ
るから、シリンダ２は略静止状態を保ち、これに対しペ
ー７３．３はこの種既存のものと同様に回転子ｌから出
没しなからその先端３ａがシリング内周面２ａに追従し
て摺動することになる。次に、回転子１が高速回転され
る高速運転状態では、ベーン３，３に強力な遠心力が付
加されてこれが強力にシリンダ２に押引けられることに
なり、一方シリンダ２は回転自由に支持されているから
、このときにはシリンダ２とベー７３．３との間に働く
ある臨界的摩擦力で該シリンダ２が４１１記側板リング
７．７と共にその軸心０°まわりに略同期して従動回転
することになるｃ本発明者の研究によるとシリンダ２は
へ−７３，３の略周速平均値の速度で回転されるものと
推測される）。したがって、この状態ではベーン３．３
からシリンダ２に作用する力は変化しなくとも、両者の
相対速度は非常に小さくて済むから（両者の相対すべり
速度はシリンダが静止している場合のｌ／１０程度と考
えられる）、その接触部分で起る摩擦の度合を著しく軽
減することができる。When the rotor 1 is rotated in this pop, a centrifugal force is applied to the bay 73.3, and its tip 3a is pushed and pulled toward the cylinder inner peripheral surface 2a. And low speed V! ! Since the frictional force between the vanes 3, 3 and the cylinder 2 is still very small in the rotating state, the cylinder 2 remains almost stationary. Since the tip 3a moves in and out, the tip 3a slides following the inner circumferential surface 2a of the sill. Next, in a high-speed operation state in which the rotor 1 rotates at high speed, a strong centrifugal force is applied to the vanes 3, 3, and this is strongly pushed and pulled by the cylinder 2, while the cylinder 2 is supported to rotate freely. Therefore, at this time, due to a certain critical frictional force acting between the cylinder 2 and the base 73.3, the cylinder 2 and the side plate ring 7.7 are driven to rotate approximately synchronously around their axis 0°. According to the research conducted by the present inventor, it is estimated that the cylinder 2 is rotated at a speed approximately equal to the average circumferential speed of -73.3). Therefore, in this state, vane 3.3
Even if the force acting on cylinder 2 does not change, the relative velocity between the two can be very small (the relative sliding velocity between the two is thought to be about 1/10 of that when the cylinder is stationary), so the contact It is possible to significantly reduce the degree of friction occurring in the parts.
ちなみに、この真空ポンプではこのベーン３．３とシリ
ンダ２どの接触支持機構の点及びこれに伴い下火された
前記吸排気系統の点を除いて、既存のこの種真空ポンプ
と同様の作動でポンプ機能を営むことは言うまでもない
。By the way, this vacuum pump operates in the same way as existing vacuum pumps of this type, except for the contact support mechanism between the vane 3.3 and the cylinder 2, and the intake and exhaust system that is lowered accordingly. Needless to say, it operates a function.
なお、本発明ではシリンダ２を円滑に従動回転するため
にはへ−７３を複数枚共働することが望ましいが、ベー
／数は勿論前記実施例のものに限らず、必要に応じその
枚数を適宜に増減することができる。In addition, in the present invention, in order to smoothly rotate the cylinder 2, it is desirable to have a plurality of blades 73 working together, but the number of blades is of course not limited to that of the above embodiment, and the number can be changed as necessary. It can be increased or decreased as appropriate.
（へ）効果
以Ｊ−のように１本発明はへ一ン形真空ポンプにおいて
゛ そのシリンダを回転子と偏心するその軸心まわりに
回転自由に支持するようにしたものであるから、シリン
ダに対するベーンの摩擦が深刻となる高速運転状態ムで
は該シリンダか従動回転して 両者の摩擦を有効に軽減
することが可能である。したがって、この真空ポンプで
は摩擦による損耗、発熱トラブルが少なく、長期に亘り
性能低ドするこｋのない耐用性に曖れる効果が得られる
。(F) Effects As shown in J-, the present invention is a single-type vacuum pump in which the cylinder is supported to freely rotate around its axis which is eccentric to the rotor. In high-speed operating conditions where vane friction becomes serious, the cylinder can be driven to rotate to effectively reduce the friction between the two. Therefore, this vacuum pump has less wear and tear due to friction and less heat generation troubles, and has long-term durability with no deterioration in performance.
図面は本発明の一実施例を示し、第１図は真空ポンプの
縦断面図、第２図はそのＡ−Ａ線断面図である。
ｌ・・・回転子
２畳・Φシリンダ
３．３１・ベー／
４．４°・０・エンドプレート
５・拳・ケーシング
６．６番・・格納溝
７．７一台・側板リング
１１．１１・・＠偏心メタル
代理人 弁理士 赤澤−博The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of a vacuum pump, and FIG. 2 is a sectional view taken along line A--A. l...Rotor 2 tatami, Φ cylinder 3.31, base/4.4°, 0, end plate 5, fist, casing No. 6.6... storage groove 7.7 one unit, side plate ring 11.11・・＠Eccentric Metal Representative Patent Attorney Hiroshi Akazawa
Claims (1)
れるシリンダと、基端部を前記回転子に設けた格納溝に
挿入するとともにその先端を前記シリンダの内周面に摺
接させて該回転子から各々半径方向に出没自在に突設さ
れる適数枚のベーンと、前記ｒａ４１転シリンダ内の容
積可変による吸排を軸心方向で行なう吸排機構とを具備
してなる真空ポンプであって、前記シリンダを前記回転
子と偏心するその軸心まわりに回転自由に支持したこと
を特徴とする真空ポンプ。a rotor; a cylinder disposed with its inner circumferential surface circumscribing the rotor; a proximal end thereof inserted into a storage groove provided in the rotor, and a distal end thereof slidingly contacted with the inner circumferential surface of the cylinder; A vacuum pump comprising: a suitable number of vanes protruding from the rotor so as to be freely protrusive and retractable in the radial direction; and a suction/discharge mechanism that performs suction/discharge in the axial direction by varying the volume within the RA41 cylinder. A vacuum pump characterized in that the cylinder is rotatably supported around an axis eccentric to the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6452784A JPS60206995A (en) | 1984-03-31 | 1984-03-31 | Vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6452784A JPS60206995A (en) | 1984-03-31 | 1984-03-31 | Vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60206995A true JPS60206995A (en) | 1985-10-18 |
Family
ID=13260779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6452784A Pending JPS60206995A (en) | 1984-03-31 | 1984-03-31 | Vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60206995A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009121517A2 (en) * | 2008-04-03 | 2009-10-08 | Vhit S.P.A. Unipersonale | A rotary displacement pump with vanes, suitable for operating with scarce or absent lubrication |
| EP2304244A2 (en) * | 2008-07-22 | 2011-04-06 | LG Electronics, Inc. | Compressor |
| US8636480B2 (en) | 2008-07-22 | 2014-01-28 | Lg Electronics Inc. | Compressor |
| EP2987951A1 (en) * | 2014-08-22 | 2016-02-24 | WABCO Europe BVBA | Vacuum pump with eccentrically driven vane |
| WO2016189801A1 (en) * | 2015-05-26 | 2016-12-01 | 株式会社デンソー | Cylinder-rotation-type compressor |
-
1984
- 1984-03-31 JP JP6452784A patent/JPS60206995A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009121517A2 (en) * | 2008-04-03 | 2009-10-08 | Vhit S.P.A. Unipersonale | A rotary displacement pump with vanes, suitable for operating with scarce or absent lubrication |
| WO2009121517A3 (en) * | 2008-04-03 | 2010-02-25 | Vhit S.P.A. Unipersonale | A rotary displacement pump with vanes, suitable for operating with scarce or absent lubrication |
| US9097254B2 (en) | 2008-07-22 | 2015-08-04 | Lg Electronics Inc. | Compressor |
| EP2304244A4 (en) * | 2008-07-22 | 2012-02-29 | Lg Electronics Inc | Compressor |
| US8636480B2 (en) | 2008-07-22 | 2014-01-28 | Lg Electronics Inc. | Compressor |
| US8876494B2 (en) | 2008-07-22 | 2014-11-04 | Lg Electronics Inc. | Compressor having first and second rotary member arrangement using a vane |
| US8894388B2 (en) | 2008-07-22 | 2014-11-25 | Lg Electronics Inc. | Compressor having first and second rotary member arrangement using a vane |
| US9062677B2 (en) | 2008-07-22 | 2015-06-23 | Lg Electronics Inc. | Compressor |
| EP2304244A2 (en) * | 2008-07-22 | 2011-04-06 | LG Electronics, Inc. | Compressor |
| EP2987951A1 (en) * | 2014-08-22 | 2016-02-24 | WABCO Europe BVBA | Vacuum pump with eccentrically driven vane |
| WO2016026556A1 (en) * | 2014-08-22 | 2016-02-25 | Wabco Europe Bvba | Vacuum pump with eccentrically driven vane (eccentric pump design) |
| CN106536855A (en) * | 2014-08-22 | 2017-03-22 | 威伯科欧洲有限责任公司 | Vacuum pump with eccentrically driven vane (eccentric pump design) |
| US9803642B2 (en) | 2014-08-22 | 2017-10-31 | Wabco Europe Bvba | Vacuum pump with eccentrically driven vane (eccentric pump design) |
| CN106536855B (en) * | 2014-08-22 | 2019-06-04 | 威伯科欧洲有限责任公司 | Vacuum pump with eccentric drive blade |
| WO2016189801A1 (en) * | 2015-05-26 | 2016-12-01 | 株式会社デンソー | Cylinder-rotation-type compressor |
| JP2016217325A (en) * | 2015-05-26 | 2016-12-22 | 株式会社日本自動車部品総合研究所 | Cylinder rotation type compressor |
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