JPS6053688A - Variable displacement type vane pump - Google Patents

Variable displacement type vane pump

Info

Publication number
JPS6053688A
JPS6053688A JP58149170A JP14917083A JPS6053688A JP S6053688 A JPS6053688 A JP S6053688A JP 58149170 A JP58149170 A JP 58149170A JP 14917083 A JP14917083 A JP 14917083A JP S6053688 A JPS6053688 A JP S6053688A
Authority
JP
Japan
Prior art keywords
pump
boat
control valve
discharge amount
port
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.)
Granted
Application number
JP58149170A
Other languages
Japanese (ja)
Other versions
JPH0549829B2 (en
Inventor
Tomio Daigo
富男 大后
Tomoaki Matsumoto
松本 奉昭
Noboru Hirokawa
広川 昇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nachi Fujikoshi Corp
Mazda Motor Corp
Original Assignee
Nachi Fujikoshi Corp
Mazda Motor Corp
Fujikoshi KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nachi Fujikoshi Corp, Mazda Motor Corp, Fujikoshi KK filed Critical Nachi Fujikoshi Corp
Priority to JP58149170A priority Critical patent/JPS6053688A/en
Publication of JPS6053688A publication Critical patent/JPS6053688A/en
Publication of JPH0549829B2 publication Critical patent/JPH0549829B2/ja
Granted legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

PURPOSE:To obtain a variable displacement type vane pump having less necessary parts and pipe connections, by providing a spool having a hollow section provided with two lands on its outer its outer periphery and formed therein with an orifice, and as well by urging one end of the spool by means of a spring. CONSTITUTION:A control valve 150 comprises a spring chamber 158 communicated with an outlet port 157, and a spool 154 including a hollow section 159 having two lands 154', 154'' on its outer periphery and formed therein with an orifice 155 with the spool being urged by a spring 153 at one end thereof. The control valve 150 is communicated such that a pump suction port is connected with a tank port 152, a first port 152 communicates a pump discharge port 14 with the hollow section 159 through a passage 110, and a second port 156 is connected with a discharge amount reducing device 18 through a passage 112. With this arrangement, the spool 154 moves in association with the value of the pressure differential across the orifice 155 to open and close the passages 110, 112 so that the discharge amount of the pump is decreased or increased.

Description

【発明の詳細な説明】 本発明は可変吐出量ベーンポンプ、特に自動車用自動変
速装置に使用される可変吐出量ベーンポンプに関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a variable displacement vane pump, and more particularly to a variable displacement vane pump used in automatic transmissions for automobiles.

従来の自動変速機用油圧ポンプは、定吐出形の内接ギヤ
ポンプまたは外接ギヤポンプが一般的である。この場合
、エンジンの回転数に比例した吐出量が得られるため、
高速回転では必要釣上の吐出量となり、かなりの部分を
フローレギュレーターからタンクへ戻しており、この部
分での損失エネルギーが問題となっている。この問題を
解決するためには、ポンプを可変吐出量形としである一
定回転以上になればポンプの理論吐出量そのものを囲域
することが必要となる。
Conventional hydraulic pumps for automatic transmissions are generally constant discharge type internal gear pumps or external gear pumps. In this case, the discharge amount is proportional to the engine speed, so
At high speeds, the required amount of discharge is required for fishing, and a considerable portion is returned from the flow regulator to the tank, and energy loss in this area is a problem. In order to solve this problem, it is necessary to make the pump a variable displacement type and to set the pump's theoretical displacement within the range when the rotation exceeds a certain level.

力・力・る可変吐出量形ポンプとしては、例λ−は出願
人が出願中で未公開の特願昭57 ] 67618号に
開示する可変吐出量ベーンポンプがある。このポンプは
従来品より改良されており、特にその第8図(本願の第
1図)において、可変吐出量ベーンポンプのローター回
転速度か一定の値を越えても、ポンプ吐出量を一定に維
持することを目的とした制御弁を有する可変吐出量べ〜
ンポンブが開示されている。即ちポンプの吐出口α<+
i:、山路(11す、オリフィス(13の、通路(13
りを経てアクテュエータAに導通・していも通路(11
0)には分岐通路(132)があり差圧一定弁(14り
のバルブチャンバ(141)に連通している。又通路(
131)には分岐通路(133)があり差圧一定弁のバ
ルブチャンバ(142)に連通している。バルブチャン
バ(、+2)内にはスプリング(143)がち9スグー
ル(144)を固有側へ押圧していた。差圧一定弁(X
4O)の出口ボート(145)はポンプの吐出量減少装
置9句と連結されている。そし、てポンプロータ(7り
の回転速度が一定の値をこえても、オリフイ7 (13
0)を通過する油量が増大することによるオリフィス前
後の圧力差によりポンプ圧油は通路(132)、差圧弁
(140)および通路(112)を通ってポンプ吐出量
減少装置O躯に導力・れで、ポンプ吐出量を減少させて
、ポンプ吐出量を一定に維持するようにされている。
An example of a variable displacement pump with force and force is a variable displacement vane pump disclosed in Japanese Patent Application No. 67618, pending and unpublished by the applicant. This pump has been improved over the conventional product, especially as shown in Figure 8 (Figure 1 of this application), which maintains the pump output constant even if the rotor rotational speed of the variable displacement vane pump exceeds a certain value. Variable discharge rate base with control valve for the purpose of
mpombu is disclosed. In other words, the pump discharge port α<+
i:, mountain path (11), orifice (13), passage (13
A conductive path (11) is connected to the actuator A through the
0) has a branch passage (132) that communicates with the constant differential pressure valve (14 valve chambers (141).
131) has a branch passage (133) that communicates with a valve chamber (142) of a constant differential pressure valve. Inside the valve chamber (, +2) was a spring (143) that pressed the spring (144) toward its own side. Constant differential pressure valve (X
The outlet boat (145) of 4O) is connected to the pump discharge rate reducing device 9. Even if the rotational speed of the pump rotor (7) exceeds a certain value, the orifice 7 (13
Due to the pressure difference before and after the orifice due to the increase in the amount of oil passing through 0), the pump pressure oil is guided to the pump discharge amount reducing device O body through the passage (132), the differential pressure valve (140), and the passage (112).・This reduces the pump discharge amount and maintains the pump discharge amount constant.

しかしながらかかる従来装置はオリフィス(13りと差
圧一定弁(140)とが別になっているため、制御弁装
置としては、オリフィス(130)、および差圧一定弁
(140)の2要素と、7個の通路(11〇八132)
(4,47)(148)(133)(14す(112)
を必要としたので、部品が多く、配管が面倒でスペース
を要した。
However, in such a conventional device, the orifice (13) and the constant differential pressure valve (140) are separate, so the control valve device consists of two elements: the orifice (130) and the constant differential pressure valve (140), and the constant differential pressure valve (140). passage (1108132)
(4,47) (148) (133) (14s (112)
Because it required many parts, the piping was troublesome and took up space.

丑たオリフィス(130)と差圧一定* (140)を
同時にポンプ(1)に一体的に付着丑たは形成テること
は困難であるため、少くともその一方を別直せざるを得
す、配管が困難でメインテ丈ンス上も問題があるばかり
か、例えば従来の定吐出量ポンプといった部材に比べて
スペースが大きく、ブた油圧システム全体を大幅に変更
する必要があり、かかるものに可変吐出量ベーンポンプ
を使用することは実用上人きな困8があった。
Since it is difficult to attach or form the fixed orifice (130) and the constant differential pressure* (140) simultaneously to the pump (1), at least one of them has to be replaced. Not only is piping difficult and maintenance difficult, but it also takes up a lot of space compared to components such as conventional constant-discharge pumps, and requires major changes to the entire hydraulic system. There are practical difficulties in using a volume vane pump.

本発明の目的は、部品が少く、配管も少い可変吐出量ベ
ーンポンプを提供することにある。
An object of the present invention is to provide a variable displacement vane pump with fewer parts and fewer piping.

本発明の別の目的は、従来の定吐出量ポンプを使用した
自動変速機装置の油圧システム゛に、大幅な変更を加え
ることなく、ポンプのみの取替えによって、可変吐出量
ベーンポング忙使用し7た自動変速(チ2装置とするこ
とができる可変吐出i7↑ベーンポンプを提供すること
にある。
Another object of the present invention is to eliminate the need for variable displacement vane pumps by replacing only the pump without making any major changes to the hydraulic system of an automatic transmission device that uses a conventional constant displacement pump. The purpose of the present invention is to provide a variable discharge i7↑ vane pump that can be an automatic speed change device.

このため不発明では、ポンプ/・ウジング内にポンプ吸
入口を有し、ポンプ吐出圧油をポンプ吐出口から制御弁
を弁してポンプ吐出−H1減少装置に導いて、ポンプロ
ーター回転速度が一定の匝以上になってもポンプ吐出量
を一定に維]1するようにされた可変吐出量ベーンポン
プにおいて、前記制御弁は、出[コボートと連通したス
プリング室に入れられたスプリング、外周に少くとも2
個のランドを有し内部にオリフィスを形成した中空部を
有し前記スプリングに一端を付勢されたスプール、ポン
プ吸入口と連通するタンクボート、前記ポンプ吐出口お
よび中空部と連通された第1のボート、および前記吐出
皇減少装置と連通され力・つ前記2個のランド間に開口
しオリフィス前後の圧力差が一定圧力1’J下のときは
前記タンクボートと連通しそして前記一定圧力以上のと
きは前記第1のボートと連通する筐筒に配置した第2の
ボート、を含むことを特徴とする可変吐出量ベーンポン
プとしたものである。かかる構成によって、制御弁は1
個のみと半減し、配管も3個と、半分以下となり、装置
全体をコンパクトにし、安価にできる。さらにポンプに
簡単に伺N衝たは内蔵できるので、従来製品と互換性あ
る可変吐出量ベーンポンプを提供できるものとなった。
For this reason, in the present invention, the pump has a pump suction port in the housing, and the pump discharge pressure oil is guided from the pump discharge port to the pump discharge - H1 reduction device by valving the control valve, so that the pump rotor rotational speed is constant. In a variable discharge vane pump which maintains the pump discharge constant even when the pump discharge exceeds 100 cm, the control valve has at least a spring placed in a spring chamber communicating with the co-boat, and at least a spring disposed on the outer periphery of the control valve. 2
a spool having a hollow part with an orifice formed therein and having one end biased by the spring; a tank boat communicating with the pump suction port; a first tank boat communicating with the pump discharge port and the hollow part; The boat is in communication with the discharge pressure reducing device and is opened between the two lands, and when the pressure difference before and after the orifice is below a constant pressure of 1'J, communicates with the tank boat and is above the constant pressure. In this case, the variable discharge amount vane pump is characterized in that it includes a second boat disposed in a housing communicating with the first boat. With such a configuration, the control valve has one
The number of pipes is reduced by half to only 3, and the number of piping is reduced by half to 3, making the entire device more compact and inexpensive. Furthermore, since the pump can be easily attached to the pump, it is now possible to provide a variable discharge volume vane pump that is compatible with conventional products.

捜下本発明の笑施例について、図面を参照して説明する
と、第2図において、ポンプ(1)の7・ウジング00
)内にポンプ吸入ロQ3ヲ有し、ポンプ吐出圧油をポン
プ吐出口αΦからただ1個の制御弁(150)を介して
ポンプ吐出量減少装置α樽に導いて、ポンプローター(
70)回転速度が一定の籠jす上になっても、ポンプ吐
出量を一定に維持するようされた可変吐出量ベーンポン
プの油圧回路図が示されている。!lJ御弁(150)
は、アクチュエータAと連結される出口ポート(157
)と連通したスプリング室(ISS)に入れられたスプ
リング(153)、外周に少くとも2個のランド(,1
54’X154”少を有し内部にオリフィス(155)
を形成した中空部(+!i9)’に有しスプリング(1
53)に一端を付勢されたスプール(1盪5す、ポンプ
吸入口と連通したタンクボー) (152)、通路(1
io)を介してポンプ吐出口U◆よ)−よび中空部(1
59)と連通された第1のポー) (151)、および
吐出量減少装置α樽と通路(112)を介して連通され
かつ2個のランド(154’ )(154’)間に17
140しオリフィス(155)前後の圧力差が一定圧力
以上、を下のときはタンクボー) (,152)と連通
しそして前記一定圧力9上のときは第1のボー) (1
51)と連通する位置に配置した第2のホード(156
)、を含む。オリフィス(155)は実施例のようにス
プリング(153)に隣接せずにスプール(15りの内
方′!Fたは反対側の第1のホー ト(151)に隣接
して形成されてもよい。
An embodiment of the present invention will be explained with reference to the drawings. In Fig. 2, the pump (1) 7.
) has a pump suction hole Q3 in the pump rotor (
70) A hydraulic circuit diagram of a variable displacement vane pump is shown in which the pump displacement is maintained constant even when the rotational speed is constant. ! lJ Goben (150)
is an outlet port (157) connected to actuator A.
), a spring (153) placed in a spring chamber (ISS) communicating with
54'X154" with internal orifice (155)
The spring (1
53), one end of which is energized by the spool (1 x 5, tank bow communicating with the pump inlet) (152), passage (1
io) through the pump outlet U◆) and the hollow part (1
59), and a first port 17 connected to the discharge rate reducing device α barrel via a passageway (112) and between two lands (154') (154').
140 and when the pressure difference before and after the orifice (155) is above a certain pressure or below, it communicates with the tank bow) (, 152), and when it is above the constant pressure 9, it communicates with the first bow) (1
The second hoard (156) is placed in a position communicating with the second hoard (156).
),including. The orifice (155) may be formed not adjacent to the spring (153) as in the embodiment, but adjacent to the inner side of the spool (15) or the first hole (151) on the opposite side. good.

以上の様な構成によりオリフィス(155)の孔径と一
定差FE升のスプリング(153)の強きを通光に選定
しておけば、規制流量以゛乍のR量がオリフィス(15
5)を通過し、ている間はスプール(154)がスプリ
ング(153)により図の下側に押圧されて通路転数に
比例して吐出量が変化する。回転数が増大しオリフィス
(155)を通過する油量が増大すると、オリフィス前
後の圧力差が流量に比例して増大する。又この圧力差は
直接スプール(154)の上下に作用]−7でいる。こ
の為圧力差が一定圧力以上になればスプール(154)
はスプリング(153)の力に抗して図上方向に移動す
る。この結果と して通路(110)と(、XXZ)が
導通しポンプ吐出量減少装置(、I印に圧油を供給Tる
ことになりポンプの吐出量は減少する。通路(220)
と(112)が導通を始める圧力差はスプリングC15
3)のバネ力に支配される。スプール(154)はオリ
フィス前後の圧力差t ’!(’;時ススプリング15
3)で規制されてる値に維持する様作用する。
With the above configuration, if the diameter of the orifice (155) and the spring (153) with a constant difference in FE are selected to allow strong light to pass through, the R amount above the regulated flow rate will be
5), while the spool (154) is pressed downward in the figure by the spring (153), the discharge amount changes in proportion to the number of rotations in the passage. As the rotational speed increases and the amount of oil passing through the orifice (155) increases, the pressure difference across the orifice increases in proportion to the flow rate. This pressure difference also acts directly on the top and bottom of the spool (154). Therefore, if the pressure difference exceeds a certain pressure, the spool (154)
moves upward in the figure against the force of the spring (153). As a result, the passage (110) and (XXZ) are brought into contact with each other, supplying pressurized oil to the pump discharge rate reducing device (marked I), and the discharge rate of the pump is reduced.Passage (220)
The pressure difference at which conduction begins between and (112) is due to spring C15
3) is controlled by the spring force. The spool (154) has a pressure difference t'! before and after the orifice. ('; Time spring 15
It acts to maintain the value regulated by 3).

即ち圧力差が大きくなればスプール(154)は図上方
へ移動し通路(110)と(112)を連通しポンプの
吐出量全減少させる。逆に圧力差が小さくなれば通路(
工10)と(112)の連通は遮断され結果としてポン
プの吐出量を増加させる。かかる操作が自動的に行なわ
れることによってポンプの吐出量を一定回転以上におい
て一定に維持することができる。
That is, when the pressure difference becomes large, the spool (154) moves upward in the figure to communicate the passages (110) and (112), thereby reducing the total discharge amount of the pump. Conversely, if the pressure difference decreases, the passage (
The communication between holes 10) and (112) is cut off, resulting in an increase in the discharge amount of the pump. By automatically performing such an operation, the discharge amount of the pump can be maintained constant above a certain rotation speed.

以上のように不実施例では、V二来品(第1図9が制御
弁を2個要し、配管を7り所必安としたのに対し、制御
弁(15りは1個に、そして配管は3ケ所(110バ1
46)(112Jと半分以下にでき配管取付けが容易で
、装置全体をコンパクトに安価にできる。
As mentioned above, in the non-implemented example, the V2 product (Fig. 1, 9) required two control valves and 7 pipes, whereas the control valve (15 valves required only one). And there are 3 piping locations (110 bar, 1
46) (It can be less than half the size of 112J, making piping installation easy, and the entire device can be made compact and inexpensive.

さらに制御弁(15りを小型にできるので、ポンプ(1
)のハウジング(ICIi内に一体的に付Nまたは形成
することができる。即ち第3図に示すように、第2、図
で示T f1il制御弁(150)をボングツ・ウジン
グ(10のポンプ吐出口(1ユに一体的に形成し、制御
弁(ISO)の各ボート(152%151.)(156
バ157)i、それぞn、ポンプ吸入口(13と(は図
示17ない〕・ウジフグ孔により、ポンプ吐出口(1ユ
とはボート孔で直接に、ポンプ吐出量減少装置0印とは
)・ウジング内にあけた孔(t12)により、それぞれ
/・ウジングに穿設した油路で連通させでいる。もちろ
ん制御弁(iso) ’1カートリッジバルブとして形
成し、ポンプ吐出口Qゆに設けた穴にねじ込むことによ
りポンプ(1)と付着させて第3図とほぼ同様な結果を
うることができることは当業者に明らかであろう。
Furthermore, since the control valve (15) can be made smaller, the pump (15) can be made smaller.
) can be integrally attached or formed within the housing (ICIi), i.e. as shown in FIG. Outlet (integrally formed in 1 unit, each boat (152% 151.) (156) of control valve (ISO)
157) i, respectively n, pump inlet (13 and (17 not shown), pump discharge port (1 means directly at boat hole, pump discharge rate reduction device 0 mark)・Through the hole (t12) drilled in the housing, they are communicated with each other through the oil passage drilled in the housing.Of course, the control valve (ISO) is formed as a cartridge valve and installed at the pump outlet Q. It will be clear to those skilled in the art that it can be attached to the pump (1) by screwing into the hole to achieve a result substantially similar to that in FIG.

このように不発9」全構成することによって、装置はき
わめてコンパクトになり、非常に狭いエンジンルームの
中に収容される自動変速機に従来2個以上の制御弁を要
することで使用か困難であった問題点を克服できるもの
となった。さらに、従来の定吐出量ポンプを使用した自
動変速機装置の油圧システムに、可変ポンプを使用する
ことに目5、油圧系の大幅な変更が必要であり、実用工
大きな難点となっていたが、不発明により、油圧システ
ムに、大幅な変更を加えることなく、ポンプのみの取替
えによって、可変吐出量ベーンポンプを使用した自動変
速機とすることができる。
By configuring the 9" in this way, the device becomes extremely compact, and conventionally requires two or more control valves in an automatic transmission housed in a very narrow engine room, making it difficult to use. This made it possible to overcome the problems. Furthermore, using a variable pump in the hydraulic system of an automatic transmission device that used a conventional constant-discharge pump required major changes to the hydraulic system, which was a major difficulty in practical engineering. According to the present invention, an automatic transmission using a variable displacement vane pump can be obtained by replacing only the pump without making any major changes to the hydraulic system.

即ちその他の従来の油圧系統の変更は一切必要がなくな
った。
In other words, there is no need to make any other changes to the conventional hydraulic system.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来の可変吐出量ベーンポンプの油圧回路図、
第2図は本発明の実施例の可変吐出量ベーンポンプの油
圧回路図、第3図は第2図とは異る可変吐出量ベーンポ
ンプの一部を切り欠いた部分拡大図を示す。 1・・ポンプ 10・・・ハウジング 13・・・ポンプ吸入口 14・・・ポンプ吐出口18
・・・ポンプ吐出量減少装置 70・・・ローター 150・・・制御弁151・・・
第1のポート152・・・り4/クポート153・・・
スフリンク154川スプール154’、154” ・・
・ランド 155・・・オリフィス 156・・・第2のボート1
57・・・出口ポート158・・・スプリング室159
・・・中空部 代理人 弁理士 河 内 潤 二
Figure 1 is a hydraulic circuit diagram of a conventional variable discharge vane pump.
FIG. 2 is a hydraulic circuit diagram of a variable discharge amount vane pump according to an embodiment of the present invention, and FIG. 3 is a partially cutaway partially enlarged view of the variable discharge amount vane pump, which is different from FIG. 2. 1...Pump 10...Housing 13...Pump suction port 14...Pump discharge port 18
... Pump discharge amount reducing device 70 ... Rotor 150 ... Control valve 151 ...
First port 152...ri4/ku port 153...
Sprinkle 154 river spool 154', 154"...
・Land 155... Orifice 156... Second boat 1
57... Outlet port 158... Spring chamber 159
...Junji Kawauchi, patent attorney, Hollow Department attorney

Claims (1)

【特許請求の範囲】 (1〕 ポンプハウジング内にポンプ吸入口を有し、ポ
ンプ吐出圧油全ポンプ吐出口から制御弁を介してポンプ
吐出量減少装置に導いて、ポンプローター回転速度が一
定の値以上になってもポンプ吐出量を一定に維持するよ
うにされた可変吐出量ベーンポンプにおいて、前記制御
弁は、出口ボートと連通したスプリング家に入れられた
スプリング、外周に少くとも2個のランドを有し内部に
オリフィスを形成した中空部を有し前記スプリングに一
端を付勢されたヌプール、ポンプ吸入口と連通するタン
クボート、前記ポンプ吐出口および中空部と連通された
第1のボート、および前記吐出量減少装置と連通されか
つ前記2個のランド間に開口しオリフィス前後の圧力差
が一定圧力以下のときは011記クンクボートと連通し
そして前記一定圧力ル上のときけ前記第1のボートと連
通する位置に配置した第2のボート、を含むことを特徴
とする可変吐出量ベーンポンプ。 (2)前記制御弁は前記ハウジング内に一体的に付着葦
たに形成された特許請求の範囲第】項に記載の可変吐出
量ベーンポンプ。 (3)前記制御弁は前記−・ウジンクと1体に形成され
、前記制御弁の各ボートはそれぞれ前記ポンプ吸入口、
ポンプ吐出口、および前記吐出量減少装置とはi′lJ
記ハウジングに穿設した油路で連通ずる特許請求の範囲
第1項に記載の可変吐出量ベーンポンプ。
[Scope of Claims] (1) A pump inlet is provided in the pump housing, and pump discharge pressure oil is guided from all pump discharge ports to a pump discharge amount reducing device via a control valve so that the pump rotor rotational speed is constant. In a variable displacement vane pump designed to maintain a constant pump displacement even when the pump displacement exceeds a specified value, the control valve includes a spring placed in a spring house communicating with an outlet boat, and at least two lands on the outer periphery. a tank boat having a hollow part with an orifice formed therein and having one end biased by the spring; a tank boat communicating with the pump suction port; a first boat communicating with the pump discharge port and the hollow part; and communicates with the discharge amount reducing device and opens between the two lands, and when the pressure difference before and after the orifice is less than a certain pressure, communicates with the Kunku boat No. 011, and when above the constant pressure level, the first a second boat disposed in communication with the boat.(2) The control valve is formed in a reed integrally attached within the housing. The variable discharge amount vane pump according to item 3. (3) The control valve is formed integrally with the -.
The pump discharge port and the discharge amount reducing device are i'lJ
The variable discharge amount vane pump according to claim 1, which communicates with the housing through an oil passage bored in the housing.
JP58149170A 1983-08-17 1983-08-17 Variable displacement type vane pump Granted JPS6053688A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58149170A JPS6053688A (en) 1983-08-17 1983-08-17 Variable displacement type vane pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58149170A JPS6053688A (en) 1983-08-17 1983-08-17 Variable displacement type vane pump

Publications (2)

Publication Number Publication Date
JPS6053688A true JPS6053688A (en) 1985-03-27
JPH0549829B2 JPH0549829B2 (en) 1993-07-27

Family

ID=15469326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58149170A Granted JPS6053688A (en) 1983-08-17 1983-08-17 Variable displacement type vane pump

Country Status (1)

Country Link
JP (1) JPS6053688A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141418A (en) * 1990-07-25 1992-08-25 Atsugi Unisia Corporation Variable capacity type vane pump with a variable restriction orifice
JP2009083705A (en) * 2007-10-01 2009-04-23 Toyota Auto Body Co Ltd Bound stopper mounting structure for automobile
US20100034681A1 (en) * 2008-08-08 2010-02-11 Kayaba Industry Co., Ltd. Variable capacity vane pump
CN103775811A (en) * 2012-10-24 2014-05-07 北京汽车动力总成有限公司 Oil pump with variable displacement
CN105960531A (en) * 2013-11-21 2016-09-21 皮尔伯格泵技术有限责任公司 Variable displacement lubricant pump
US10253772B2 (en) 2016-05-12 2019-04-09 Stackpole International Engineered Products, Ltd. Pump with control system including a control system for directing delivery of pressurized lubricant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5034254A (en) * 1973-07-27 1975-04-02
JPS5762986A (en) * 1980-10-02 1982-04-16 Nissan Motor Co Ltd Variable displacement type vane pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5034254A (en) * 1973-07-27 1975-04-02
JPS5762986A (en) * 1980-10-02 1982-04-16 Nissan Motor Co Ltd Variable displacement type vane pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141418A (en) * 1990-07-25 1992-08-25 Atsugi Unisia Corporation Variable capacity type vane pump with a variable restriction orifice
JP2009083705A (en) * 2007-10-01 2009-04-23 Toyota Auto Body Co Ltd Bound stopper mounting structure for automobile
US20100034681A1 (en) * 2008-08-08 2010-02-11 Kayaba Industry Co., Ltd. Variable capacity vane pump
US8342826B2 (en) * 2008-08-08 2013-01-01 Kayaba Industry Co., Ltd. Variable capacity vane pump
CN103775811A (en) * 2012-10-24 2014-05-07 北京汽车动力总成有限公司 Oil pump with variable displacement
CN105960531A (en) * 2013-11-21 2016-09-21 皮尔伯格泵技术有限责任公司 Variable displacement lubricant pump
CN105960531B (en) * 2013-11-21 2018-01-02 皮尔伯格泵技术有限责任公司 Variable-displacement lubricant pump
US10253772B2 (en) 2016-05-12 2019-04-09 Stackpole International Engineered Products, Ltd. Pump with control system including a control system for directing delivery of pressurized lubricant

Also Published As

Publication number Publication date
JPH0549829B2 (en) 1993-07-27

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