JPH02115590A - Blade of rotary compressor and its manufacture - Google Patents
Blade of rotary compressor and its manufactureInfo
- Publication number
- JPH02115590A JPH02115590A JP26907788A JP26907788A JPH02115590A JP H02115590 A JPH02115590 A JP H02115590A JP 26907788 A JP26907788 A JP 26907788A JP 26907788 A JP26907788 A JP 26907788A JP H02115590 A JPH02115590 A JP H02115590A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- blade
- divided
- rotary compressor
- dividing
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims description 4
- 238000005245 sintering Methods 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract 2
- 230000009191 jumping Effects 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、ロータリー圧縮機に使用されるブレードとそ
の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a blade used in a rotary compressor and a method for manufacturing the same.
(従来の技術)
従来、ロータリー圧縮機に使用されるブレードは、例え
ば実開昭62−62395号公報に記載され、かつ、第
8図に示したごとく、中実状とした板状本体(A)から
形成されている。(Prior Art) Conventionally, a blade used in a rotary compressor is described in, for example, Japanese Utility Model Application Publication No. 62-62395, and as shown in FIG. is formed from.
(発明が解決しようとする課題)
ところで、以上のブレードは、中実伏の板状本体(A)
から形成され、その重量が大であることから、特にイン
バータ制御運転可能とした機種に採用する場合で、シリ
ンダ室に内装した偏心回転部を高速回転させるようなと
き、該偏心回転部の回転に伴い往復動される前記板状本
体(A)の慣性力が増大し、この板状本体(A)の偏心
回転部に対する追従性が悪くなって、往復動時に前記板
状本体(A)が偏心回転部から離間する現象、所謂跳び
現象が発生して、跳んだ板状本体(A)が偏心回転部に
再接触するときの衝撃により、該偏心回転部や板状本体
(A)の破損を招いたり、また、板状本体(A)による
衝撃が騒音や振動の発生原因となるなどの問題があった
。(Problem to be solved by the invention) By the way, the above blade has a solid flat plate-like body (A).
Due to its large weight, when the eccentric rotating part installed in the cylinder chamber is rotated at high speed, especially when used in a model capable of inverter-controlled operation, it is necessary to As a result, the inertia of the plate-like body (A) that is reciprocated increases, and the ability of the plate-like body (A) to follow the eccentric rotating portion deteriorates, causing the plate-like body (A) to move eccentrically during the reciprocating movement. When a phenomenon in which the plate-shaped body (A) is separated from the rotating part, a so-called jumping phenomenon occurs, and the plate-shaped body (A) that has jumped comes into contact with the eccentric rotating part again, the shock may cause damage to the eccentric rotating part or the plate-shaped body (A). In addition, the impact caused by the plate-shaped main body (A) causes noise and vibration.
そこで、以前に、前記板状本体の高さ方向に、その往復
動方向に向けて延びる複数の長孔をドリルなどで刺抜形
成して、前記板状本体の軽量化を図り、該板状本体の跳
び現象を阻止するようにしたブレードを提案したのであ
る。(実願昭63−48553号 昭和63年4月11
日提出)ところが、以上のようなブレードは、その素材
として工具鋼などの硬質材料が使用され、しかも肉厚が
約2〜4w■程度の極めて薄厚とされていることから、
前記長孔をドリルなどで形成するためには、非常に困難
な作業を伴い、長時間を必要として製作コストが高くな
る問題があった。Therefore, previously, a plurality of elongated holes extending in the height direction of the plate-like body in the direction of its reciprocating motion were formed using a drill or the like to reduce the weight of the plate-like body. He proposed a blade that would prevent the body from jumping. (Jitsugan No. 1983-48553 April 11, 1988)
However, the blades mentioned above are made of hard materials such as tool steel, and the wall thickness is extremely thin, approximately 2 to 4 mm.
Forming the elongated holes using a drill or the like involves very difficult work, requires a long time, and has the problem of increasing manufacturing costs.
本発明は以上のような各種問題に鑑みてなしたもので、
その目的は、簡単な作業でもって、全体重h1のII
ffi化を図り、跳び現象を阻止することができるロー
タリー圧縮機のブレードとその製造方法を提供すること
にある。The present invention was made in view of the various problems mentioned above.
The purpose is to carry out simple work, with a total weight of h1
It is an object of the present invention to provide a blade of a rotary compressor that can achieve ffi and prevent a jumping phenomenon, and a method for manufacturing the same.
(課題を解決するための手段)
上記目的を達成するために、本発明は、シリンダ室(3
a)に内装する偏心回転部(4)の外周面に、頂部を当
接しながら往復動される板状本体(61)から成るロー
タリー圧縮機のブレードにおいて、前記板状本体(61
)を、板厚方向に置針した第1分割板(62)と第2分
割板(63)とを重ね合わせて構成し、これら第1及び
第2分割板(E32)(63)における重合面(64)
の少なくとも一方側に、該重合面(64)側に開放され
る凹溝(65)を形成したことを特徴とするものである
。(Means for Solving the Problem) In order to achieve the above object, the present invention provides a cylinder chamber (3
In a rotary compressor blade comprising a plate-shaped body (61) that is reciprocated while a top part is in contact with the outer peripheral surface of an eccentric rotating part (4) installed in the rotary compressor, the plate-shaped body (61)
) is constructed by overlapping a first divided plate (62) and a second divided plate (63) placed in the thickness direction, and the overlapping surface ( 64)
A groove (65) that is open to the overlapping surface (64) is formed on at least one side of the groove.
また、前記ブレードを製造するにあたっては、1111
記板状本体(61)を板厚方向に置針した第1分割板(
62)と第2分割板(63)とを、これら各分割板13
2)(63)の重合面(64)側に開放される凹溝(6
5)と共にそれぞれ個別に形成した後に、前記各分割板
(62)(63)を前記重合面(64)で重ね合わせて
一体化するようにしたことを特徴とするものである。In addition, in manufacturing the blade, 1111
A first divided plate (with needles placed in the plate-like main body (61) in the plate thickness direction)
62) and the second dividing plate (63), each of these dividing plates 13
2) Concave groove (6) opened on the overlapping surface (64) side of (63)
5), and then the divided plates (62) and (63) are overlapped and integrated at the overlapping surface (64).
(作用)
以上のブレードでは、前記第1分割板(62)と第2分
割板(63)との重合面(64)のうち少なくとも一方
側に、該重合面(64)側に開放される凹溝(65)が
形成されていることから、この凹溝(65)の存在で前
記板状本体(61)の全体重量が軽量となって、該板状
本体(61)の跳び現象が阻止されるのである。(Function) In the above blade, at least one side of the overlapping surface (64) of the first dividing plate (62) and the second dividing plate (63) has a recess that is open to the overlapping surface (64) side. Since the groove (65) is formed, the presence of the groove (65) reduces the overall weight of the plate-shaped body (61), and prevents the plate-shaped body (61) from jumping. It is.
また、前記ブレードを製造するにあたっては、1111
記板献本体(61)を板厚方向に置針した第1分割板(
62)と第2分割板(63)とを、前記・■台面(64
)側に開放される凹溝(65)と共にそれぞれ個別に形
成して、この後前記各分割板(62)(63)を前記重
合面(64)で重ね合わせて一体化するようにしたため
に、軽量化されたブレードを簡単に製造できるのである
。In addition, in manufacturing the blade, 1111
The first divided plate (61) on which the plate main body (61) is placed in the thickness direction
62) and the second dividing plate (63) are connected to the base surface (64).
) side, and the divided plates (62) and (63) are then integrated by overlapping each other at the overlapping surface (64). This makes it easy to manufacture lightweight blades.
(実施例) 実施例について、図面を参照して説明する。(Example) Examples will be described with reference to the drawings.
第5図に示したロータリー圧縮機は、密閉ケーシング(
1)の内方上部側にモータ(2)を、下部側に圧縮要素
(3)を配設すると共に、この圧縮要素(3)のシリン
ダ室(3a)に偏心回転部(4)を内装して、該偏心回
転部(4)を前記モータ(2)から延びる駆動軸(5)
で偏心回転させることにより、前記シリンダ室(3a)
内で吸入冷媒を圧縮して外部に吐出させるようにしてい
る。The rotary compressor shown in Figure 5 has a hermetic casing (
1), a motor (2) is disposed on the inner upper side, a compression element (3) is disposed on the lower side, and an eccentric rotating part (4) is disposed inside the cylinder chamber (3a) of the compression element (3). The eccentric rotating part (4) is connected to a drive shaft (5) extending from the motor (2).
By eccentrically rotating the cylinder chamber (3a)
The suction refrigerant is compressed inside and discharged to the outside.
前記圧縮要素(3)は、シリンダ(31)と、該シリン
ダ(31)の上下部位に配設されたフロン及びリヤヘッ
ド(32) (33)とを備え、これら各ヘッド(3
2)(33)で囲まれる前記シリンダ(31)内に前記
シリンダ室(3a)を形成すると共に、該シリンダ室(
3a)内にローラ(34)を配設し、このローラ(34
)に前記駆動軸(4)の偏心軸部(51)を挿嵌させて
、これら偏心軸部(51)とローラ(34)とで前記偏
心回転部(4)を構成している。The compression element (3) includes a cylinder (31), and front and rear heads (32) and (33) disposed above and below the cylinder (31), and each of these heads (3
2) The cylinder chamber (3a) is formed within the cylinder (31) surrounded by (33), and the cylinder chamber (3a) is
A roller (34) is disposed within 3a), and this roller (34)
) is inserted into the eccentric shaft (51) of the drive shaft (4), and the eccentric shaft (51) and the roller (34) constitute the eccentric rotating section (4).
また、前記シリンダ(31)には、前記ローラ(34)
の外周面に頂部が常時接触されるブレード(6)を往復
動自由に支持して、このブレード(6)で画成されるシ
リンダ室(3a)の吸入側に冷媒吸入管(11)を接続
し、かつ、前記ブレード(6)で画成されるシリンダ室
(3a)の吐出側を前記ケーシング(1)の内部に開放
させて、前記ローラ(34)の前記シリンダ室(3a)
内での偏心回転により、前記吸入管(11)からの吸入
冷媒を圧縮して、前記ケーシング(1)の内部から外部
吐出管(12)を介して外部へと吐出させるようにして
いる。The cylinder (31) also includes the roller (34).
A refrigerant suction pipe (11) is connected to the suction side of the cylinder chamber (3a) defined by the blade (6) by supporting a blade (6) whose top part is always in contact with the outer circumferential surface of the refrigerant cylinder (6). The discharge side of the cylinder chamber (3a) defined by the blade (6) is opened to the inside of the casing (1), and the cylinder chamber (3a) of the roller (34) is opened.
The eccentric rotation within the casing compresses the suction refrigerant from the suction pipe (11) and discharges it from the inside of the casing (1) to the outside via the external discharge pipe (12).
しかして以上のロータリー圧縮機に使用されるブレード
(6)を、次のような軽量化構造としたのである。Therefore, the blade (6) used in the above rotary compressor has the following lightweight structure.
即ち、前記ブレード(6)は、第1図で詳しく示したご
とく、その往復動方向先端側に丸味をもった頂部(81
a)を、また、基部側にフラット状の基端面(6l b
)及びバネ受面(E31 c)をもった矩形薄肉の板状
本体(61)で形成される。That is, as shown in detail in FIG. 1, the blade (6) has a rounded top (81) on the tip side in the reciprocating direction.
a), and a flat proximal surface (6l b) on the proximal side.
) and a spring receiving surface (E31 c).
そして、前記板状本体(61)を、板厚方向に二つに分
割された第1分割板(62)と第2分割板(63)とで
構成し、これら各分割板(62)(63)の対向面側に
形成される重合面(64)(64)の上下方向に、該各
重合而(64)側に開放される断面半円形状をなし、か
つ、重合時に円形孔となる複数の凹溝(65)(85)
をそれぞれ前記ブレード(6)の往復動方向に向けて形
成すると共に、前記各分割板(f32)(63)の重合
面(64)をそれぞれ接合一体化させることにより、前
記各凹溝(65)の存在で軽量とされた11;1配板状
本体(61)を形成するのである。The plate-shaped main body (61) is composed of a first divided plate (62) and a second divided plate (63) that are divided into two in the thickness direction, and each of these divided plates (62) (63) is divided into two parts in the thickness direction. ) A plurality of overlapping surfaces (64) formed on the opposing surface side of (64), each having a semicircular cross section that is open to each of the overlapping points (64) and forming circular holes when overlapping. Concave groove (65) (85)
are formed to face the reciprocating direction of the blade (6), and the overlapping surfaces (64) of the divided plates (f32) (63) are joined and integrated, thereby forming the grooves (65). The presence of the 11:1 plate-like main body (61) which is lightweight is formed.
また、前記板状本体(61)は、第3図に示したごとく
、前記第1分割板(62)側だけに、その重合面(64
)側に開放される深溝形の凹溝(65)を形成し、前記
第2分割板(63)側をフラットな平板状に形成して、
これら第1及び第2分割板(62)(63)の各重合面
(64)を互いに重合一体化させて形成してもよいので
ある。Further, as shown in FIG. 3, the plate-shaped main body (61) has its overlapping surface (64
), forming a deep groove-shaped groove (65) open to the side, and forming the second dividing plate (63) side into a flat plate shape,
The overlapping surfaces (64) of the first and second dividing plates (62) and (63) may be formed by overlapping and integrating with each other.
更に、前記板状本体(61)は、第4図に示すように、
前記各分割板(62)(E3.3)に、大きな1つの凹
溝(65)を形成して、この凹溝(65)でもって、前
記板状本体(61)の軽口化を行うようにしてもよい。Furthermore, as shown in FIG. 4, the plate-shaped main body (61)
One large groove (65) is formed in each of the dividing plates (62) (E3.3), and this groove (65) makes the plate-like main body (61) lighter. It's okay.
次に、1n記ブレード(6)の製造方法を、第2図に基
づいて説明する。尚、この第2図は、前記第1図で示し
たブレード(6)の製造方法を記載している。Next, a method for manufacturing the blade 1n (6) will be explained based on FIG. 2. Incidentally, this FIG. 2 describes a method of manufacturing the blade (6) shown in FIG. 1 above.
即ち、先ず、前記第1分割板(62)と第2分割板(6
3)とを、それぞれ各別に焼結成形手段により成形して
、この焼結成形時に、前記各分割板(62)(63)の
各重合面(θ4)(E34)に、半円形とされた複数の
凹溝(85)(65)を同時成形する。That is, first, the first dividing plate (62) and the second dividing plate (62)
3), respectively, by a sintering forming means, and at the time of sintering, a semicircular shape was formed on each overlapping surface (θ4) (E34) of each of the dividing plates (62) (63). A plurality of grooves (85) (65) are formed simultaneously.
次に、前記各分割板(E32)(63)の重合面(64
)(84)間に、銅粉などを介装させて互いに重ね合わ
せ、前記各分割板132)(E33)を焼成炉などで焼
成するのであり、斯(することにより、前記銅粉などが
前記各重合面(64)に溶浸されて、前記各分割板(6
2)(f33)が接合一体化されるのである。Next, the overlapping surface (64) of each dividing plate (E32) (63)
) (84) The divided plates 132) (E33) are stacked on top of each other with copper powder or the like interposed therebetween, and fired in a firing furnace or the like. Each of the overlapping surfaces (64) is infiltrated, and each of the dividing plates (64) is infiltrated.
2) (f33) is joined and integrated.
また、前記ブレード(6)は、鍛造手段を利用して製造
することも可能であり、即ち、先ず、平板状とされた前
記各分割板(62)(63)を形成して、これら分割板
C62)(83)の各重合面(84)(64)に、それ
ぞれ鍛造手段により前記各凹溝(65)(65)を形成
する。Further, the blade (6) can also be manufactured by using forging means, that is, first, the divided plates (62) and (63) are formed into flat plate shapes, and then these divided plates are formed. The concave grooves (65) (65) are formed on the overlapping surfaces (84) (64) of C62) (83) by forging means, respectively.
そして、前記各分割板(62)(83)の重合面(64
)(84)間に、銅粉などを介装して互いに重ね合わせ
、前記各分割板(62)(63)を加熱することにより
、前記銅粉などを溶融させて、前記各分割板(62)(
83)を接合一体化させるのである。Then, the overlapping surface (64) of each of the dividing plates (62) (83)
) (84) The divided plates (62) and (63) are overlapped with each other with copper powder etc. interposed between them, and the divided plates (62) and (63) are heated to melt the copper powder etc. )(
83) are joined and integrated.
(発明の効果)
以上説明したように、本発明にかかるロータリー圧縮機
のブレードでは、該ブレードを構成する板状本体(61
)を、板厚方向に置針した第1分割板(62)と第2分
割板(63)とを重ね合わせて形成し、これら各分割板
(E32)([33)における重合面(64)の少なく
とも一方側に、該重合面(64)側に開放される凹溝(
65)を形成したから、この凹溝(65)の存在で前記
板状本体(61)の全体重量を軽量となし、該板状本体
(61)の跳び現象を確実に防止することができ、従っ
て前記板状本体(61)などの破損事故や騒音及び振動
の発生を阻止できるに至ったのである。(Effects of the Invention) As explained above, in the rotary compressor blade according to the present invention, the plate-like body (61
) is formed by overlapping the first divided plate (62) and the second divided plate (63) placed in the thickness direction, and the overlapping surface (64) of each divided plate (E32) ([33)] At least one side has a concave groove (
65), the presence of the concave groove (65) makes the overall weight of the plate-like body (61) lightweight, and the jumping phenomenon of the plate-like body (61) can be reliably prevented. Therefore, it has become possible to prevent damage to the plate-shaped main body (61) and the generation of noise and vibration.
また、前記ブレードを製造するにあたっては、前記板状
本体(61)を板厚方向に置針した第1分割板(62)
と第2分割板(63)とを、前記重合面(64)側に開
放される凹溝(65)と共にそれぞれ個別に形成して、
この後前記各分割板(62)(E33)を前記重合面(
64)で重ね合わせて一体化するようにしたために、経
用化ブレードを安価な製造コストでもって簡単に製造で
きるに至ったのである。In manufacturing the blade, a first divided plate (62) with needles placed on the plate-like main body (61) in the plate thickness direction is used.
and a second dividing plate (63) are each formed individually with a groove (65) open to the overlapping surface (64) side,
After that, each of the dividing plates (62) (E33) is attached to the overlapping surface (
64), it has become possible to easily manufacture a durable blade at a low manufacturing cost.
第1図は本発明にかかるロータリー圧縮機のブレードを
示す斜視図、第2図は同ブレードの製造方法を示す斜視
図、第3図及び第4図は同ブレードの他の実施例を示す
斜視図、第5図はロータリー圧縮機の全体構造を示す縦
断面図、第6図は従来のブレードを示す斜視図である。
(3a)・・・・シリンダ室
(4)・・・・・偏心回転部
(61)・・・・板状本体
(62)・・・・第1分割板
(63)・・番・第2分割板
(64)”・・重合面
(65)・・・・凹溝FIG. 1 is a perspective view showing a rotary compressor blade according to the present invention, FIG. 2 is a perspective view showing a method of manufacturing the same blade, and FIGS. 3 and 4 are perspective views showing other embodiments of the same blade. 5 is a longitudinal sectional view showing the overall structure of a rotary compressor, and FIG. 6 is a perspective view showing a conventional blade. (3a)...Cylinder chamber (4)...Eccentric rotating part (61)...Plate body (62)...First dividing plate (63)...Number 2 Dividing plate (64)"... Overlapping surface (65)... Concave groove
Claims (1)
外周に頂部を当接しながら往復動される板状本体(61
)をもったロータリー圧縮機におけるブレードであって
、前記板状本体(61)は、板厚方向に二分された第1
分割板(62)と第2分割板(63)との重ね合わせか
ら成り、これら第1及び第2分割板(62)(63)の
重合面(64)には、該重合面(64)に開放する凹溝
(65)が形成されていることを特徴とするロータリー
圧縮機におけるブレード。 2)シリンダ室(3a)に内装する偏心回転部(4)に
外周に頂部を当接しながら往復動される板状本体(61
)をもったロータリー圧縮機におけるブレードの製造方
法であって、前記板状本体(61)を板厚方向に二分し
た第1分割板(62)と第2分割板(63)とを、これ
ら第1及び第2分割板(62)(63)の重合面(64
)に開放される凹溝(65)と共にそれぞれ個別に形成
した後に、これら第1及び第2分割板(62)(63)
を前記重合面(64)で重ね合わせて一体化したことを
特徴とするロータリー圧縮機におけるブレードの製造方
法。[Scope of Claims] 1) A plate-shaped body (61) that is reciprocated while its top abuts the outer periphery of an eccentric rotating part (4) installed in a cylinder chamber (3a).
) in a rotary compressor, the plate-like main body (61) has a first blade divided into two in the thickness direction.
Consisting of a dividing plate (62) and a second dividing plate (63) overlapping each other, the overlapping surface (64) of the first and second dividing plates (62) and (63) has an overlapping surface (64). A blade for a rotary compressor, characterized in that an open groove (65) is formed. 2) The plate-shaped main body (61
), in which a first dividing plate (62) and a second dividing plate (63), which are obtained by dividing the plate-shaped main body (61) into two in the thickness direction, are divided into two parts. The overlapping surface (64) of the first and second dividing plates (62) (63)
), and then the first and second dividing plates (62) (63)
A method for manufacturing a blade for a rotary compressor, characterized in that the blades are integrated by overlapping them at the overlapping surface (64).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26907788A JPH02115590A (en) | 1988-10-25 | 1988-10-25 | Blade of rotary compressor and its manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26907788A JPH02115590A (en) | 1988-10-25 | 1988-10-25 | Blade of rotary compressor and its manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02115590A true JPH02115590A (en) | 1990-04-27 |
Family
ID=17467343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26907788A Pending JPH02115590A (en) | 1988-10-25 | 1988-10-25 | Blade of rotary compressor and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02115590A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10307040A1 (en) * | 2003-02-20 | 2004-09-16 | Luk Automobiltechnik Gmbh & Co. Kg | Vacuum pump, especially for power assisted vehicle braking system, includes vane having interior hollow spaces with closed injection holes |
DE102014010005B4 (en) * | 2014-07-05 | 2020-07-30 | FRÖTEK Vermögensverwaltung GmbH | Vane vacuum pump |
-
1988
- 1988-10-25 JP JP26907788A patent/JPH02115590A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10307040A1 (en) * | 2003-02-20 | 2004-09-16 | Luk Automobiltechnik Gmbh & Co. Kg | Vacuum pump, especially for power assisted vehicle braking system, includes vane having interior hollow spaces with closed injection holes |
DE102014010005B4 (en) * | 2014-07-05 | 2020-07-30 | FRÖTEK Vermögensverwaltung GmbH | Vane vacuum pump |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102249115B1 (en) | Compressor | |
JP4961351B2 (en) | Process for manufacturing pistons and pistons for oblique axis piston engines | |
CN1802509A (en) | Rotary fluid machinery | |
JPH0756268B2 (en) | Oil pump | |
JPH084669A (en) | Scroll type fluid machine | |
JPH02115590A (en) | Blade of rotary compressor and its manufacture | |
JPH01163401A (en) | Scroll type machine | |
JP2005509800A (en) | Compressor with Z-plate | |
JP2005511957A (en) | Compressor discharge section structure | |
CN110905809A (en) | Pump body assembly, heat exchange equipment, fluid machine and operation method thereof | |
JP2001304149A (en) | Scroll compressor | |
CN211397884U (en) | Pump body assembly, heat exchange equipment and fluid machinery | |
JPH025780A (en) | Scroll compressor | |
CN1598318A (en) | Asymmetric scroll compressor | |
JPH0444111B2 (en) | ||
JP2554646B2 (en) | Oldham coupling of scroll compressor | |
JPS60159390A (en) | Preparation of oldham's coupling for scroll compressor | |
JPH1089268A (en) | Scroll-type fluid machine | |
CN1287091C (en) | Vorticity compression pump | |
JP2001193677A (en) | Screw fluid machine | |
JPS58150083A (en) | Opposed swash plate system compressor | |
JPS59141782A (en) | Scroll fluid device | |
JPH01211601A (en) | Scroll fluid machine | |
JPH081181B2 (en) | Rotary compressor | |
JPH03225002A (en) | Scroll fluid machinery |