JP2014084867A - Internal gear pump for hydraulic vehicle brake equipment - Google Patents

Internal gear pump for hydraulic vehicle brake equipment Download PDF

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Publication number
JP2014084867A
JP2014084867A JP2013214680A JP2013214680A JP2014084867A JP 2014084867 A JP2014084867 A JP 2014084867A JP 2013214680 A JP2013214680 A JP 2013214680A JP 2013214680 A JP2013214680 A JP 2013214680A JP 2014084867 A JP2014084867 A JP 2014084867A
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Prior art keywords
internal gear
pump
gear pump
pinion
axial disk
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JP2013214680A
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JP6523598B2 (en
Inventor
Speer Harald
ハラルド・シュペア
Rene Schepp
レーネ・シェップ
Norbert Alaze
ノルベルト・アラーゼ
Kurz Edgar
エドガー・クルツ
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Robert Bosch GmbH
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Robert Bosch GmbH
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    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
    • 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
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C15/064—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
    • F04C15/066—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an internal gear pump for hydraulic vehicle brake equipment that when the internal gear pump does not operate, prevents the internal gear pump from flowing through a reverse direction to a delivery direction by a brake fluid, and thereby prevents the lowering of brake pressure due to through-flow.SOLUTION: An internal gear pump 1 performs slip control of hydraulic vehicle brake equipment. A check valve 24 for communicating a pressure chamber 9 of the internal gear pump 1 with a pump discharge part is incorporated into an axial disc 12 of the internal gear pump 1.

Description

本発明は、請求項１の前提項の構成要件を備える内接歯車ポンプに関する。このような内接歯車ポンプは、通常用いられるピストンポンプに代えて、スリップ制御式および／または外力式の車両ブレーキ設備で油圧ポンプとして利用されており、あらゆるケースで妥当な名称とはいえないものの、しばしばリターンポンプと呼ばれている。スリップ制御式の油圧車両ブレーキ設備では、ポンプ吐出部は、すなわち油圧ポンプの圧力側は、マスタブレーキシリンダからホイールブレーキシリンダへと通じるブレーキ配管に接続されている。マスタブレーキシリンダの操作によって生成されるブレーキ圧が、ポンプ吐出部に発生する。   The present invention relates to an internal gear pump having the constituent features of the premise of claim 1. Such an internal gear pump is used as a hydraulic pump in a slip control type and / or external force type vehicle brake equipment in place of a piston pump which is usually used, and although it is not a reasonable name in all cases. Often referred to as a return pump. In the hydraulic vehicle brake equipment of the slip control type, the pump discharge part, that is, the pressure side of the hydraulic pump is connected to a brake pipe that leads from the master brake cylinder to the wheel brake cylinder. Brake pressure generated by operating the master brake cylinder is generated in the pump discharge section.

内接歯車ポンプは公知であり、内歯のあるリングギヤの中で偏心的に配置され、円周ないし円周区域の１つの個所でリングギヤと噛み合うピニオンすなわち外歯の歯車を有している。ピニオンとリングギヤを内接歯車ポンプの歯車として把握することもできる。これら両方の歯車のうちの一方を、通常はピニオンを、回転駆動することで、他方の歯車も、すなわち通常はリングギヤも、一緒に回転駆動され、内接歯車ポンプはそれ自体公知の仕方で流体を送出し、油圧車両ブレーキ設備の場合にはブレーキ液を送出する。   Internal gear pumps are known and have a pinion or external gear that is eccentrically arranged in a ring gear with internal teeth and meshes with the ring gear at one location in the circumference or circumferential section. The pinion and the ring gear can be grasped as the gears of the internal gear pump. By driving one of these gears, usually a pinion, in rotation, the other gear, i.e. usually the ring gear, is also driven together, and the internal gear pump is fluidized in a manner known per se. In the case of hydraulic vehicle brake equipment.

内接歯車ポンプは、ピニオンがリングギヤと噛み合う円周区域に向かい合うように、三日月形の自由空間をピニオンとリングギヤの間に有しており、これをここではポンプ室と呼ぶ。ポンプ室の中には、吸込室と圧力室とにポンプ室を分離する分離片が配置されている。この分離片は、その典型的な形状からクレセントまたはクレセント片とも呼ばれ、さらに別の名称は充填片である。分離片の典型的には中空円形の内面はピニオンの歯の歯先に当接し、分離片の典型的には外方に向かって湾曲する外面は、リングギヤの歯の歯先に当接し、それにより分離片は、内接歯車ポンプのそれぞれの歯車の歯の間の歯中間スペースで流体容積を取り囲む。回転駆動をすることで、それぞれの歯車が歯中間スペースの流体を吸込室から圧力室へと送出する。   The internal gear pump has a crescent-shaped free space between the pinion and the ring gear so that the pinion faces the circumferential area where the pinion meshes with the ring gear, which is referred to herein as a pump chamber. A separation piece for separating the pump chamber into a suction chamber and a pressure chamber is disposed in the pump chamber. This separation piece is also called a crescent or crescent piece because of its typical shape, and yet another name is a filling piece. The typically hollow, circular inner surface of the separating piece abuts the tooth tip of the pinion, and the outer surface of the separating piece typically curved outwardly abuts the tooth tip of the ring gear. The separating piece thus encloses the fluid volume in the tooth intermediate space between the respective gear teeth of the internal gear pump. By rotating, each gear sends out the fluid in the intermediate tooth space from the suction chamber to the pressure chamber.

ポンプ室を側方で密閉するために、内接歯車ポンプのそれぞれの歯車の両方の側で回転不能かつ軸方向へ可動に配置されたアキシャルディスクが知られている。アキシャルディスクは圧力室を側方で覆い、分離片にわたって少なくとも部分的に延びており、特に、通常は全面的に延びている。吸込室の領域では、アキシャルディスクが切り欠かれていてよい。このようなアキシャルディスクはプレッシャプレートとも呼ばれる。アキシャルディスクは、リングギヤ、ピニオン、および分離片のほうを向く内面で、リングギヤ、ピニオン、および分離片の端面にそれぞれ密閉式に当接し、このとき、アキシャルディスクとリングギヤならびにピニオンとの間には、アキシャルディスクの当接にもかかわらず回転可能である一種の滑り支承が成立する。ポンプ室ないし圧力室の気密な密閉は必要ではなく、漏れは容認することができる。アキシャルディスクは、リングギヤ、ピニオン、および分離片と反対を向いている方の外面に、圧力室またはポンプ吐出部と連通する押圧区域を有しており、それにより押圧区域は内接歯車ポンプの作動時に圧力付勢されて、その内面でアキシャルディスクをリングギヤ、ピニオン、および分離片の端面に向かって押圧する。押圧区域はアキシャルディスクの外面にある通常は浅い凹部であり、そのサイズは、ポンプ室で、特に圧力室で生じている圧力に抗して、圧力がアキシャルディスクをその内面でリングギヤ、ピニオン、および分離片に向かって押圧するように設定されている。通常、押圧区域はほぼ圧力室にわたって延びるとともに、圧力室よりも若干広くなっており、それは、リングギヤ、ピニオン、および分離片の端面に対するアキシャルディスクの所望の付勢が生じるようにするためである。   In order to seal the pump chamber laterally, axial disks are known which are arranged so that they cannot rotate on both sides of each gear of the internal gear pump and are movable in the axial direction. The axial disk covers the pressure chamber laterally and extends at least partly over the separating piece, in particular generally extending entirely. In the area of the suction chamber, the axial disk may be cut out. Such an axial disk is also called a pressure plate. The axial disk is an inner surface facing the ring gear, the pinion, and the separation piece, and abuts against the end surfaces of the ring gear, the pinion, and the separation piece, respectively, and at this time, between the axial disk, the ring gear, and the pinion, A kind of sliding bearing that is rotatable despite the contact of the axial disk is established. A hermetic seal of the pump chamber or pressure chamber is not necessary and leakage can be tolerated. The axial disk has a pressing area in communication with the pressure chamber or pump discharge on the outer surface facing away from the ring gear, pinion and separating piece, so that the pressing area operates the internal gear pump. At times, pressure is applied to press the axial disk toward the end face of the ring gear, the pinion, and the separation piece. The pressing area is usually a shallow recess on the outer surface of the axial disk, the size of which is against the pressure generated in the pump chamber, in particular the pressure chamber, the pressure on the inner surface of the ring disk, pinion, and It is set to press toward the separation piece. Usually, the pressing area extends substantially over the pressure chamber and is slightly wider than the pressure chamber, so that the desired biasing of the axial disk against the ring gear, the pinion and the end face of the separating piece occurs.

分離片のない内接歯車ポンプも知られており、これは環状歯車ポンプと呼ばれる。本発明は、このような内接歯車ポンプにも適用可能である。   An internal gear pump without a separation piece is also known, which is called an annular gear pump. The present invention is also applicable to such an internal gear pump.

請求項１の構成要件を備える本発明の内接歯車ポンプは、圧力室と連通し、圧力室からポンプ吐出部に向かう方向に貫流可能である逆止め弁を備えるアキシャルディスクを有している。逆止め弁は、ポンプ吐出部からポンプ吸込部に向かう内接歯車ポンプの貫流に抗して遮蔽をし、内接歯車ポンプが停止しているときに、すなわち内接歯車ポンプが作動していないときに、送出方向と逆向きへの内接歯車ポンプの貫流を妨げる。スリップ制御式の油圧車両ブレーキ設備では、本発明による内接歯車ポンプの逆止め弁は、スリップ制御を伴わないブレーキ操作のときに、すなわち内接歯車ポンプが作動していないときに、ブレーキ液が内接歯車ポンプを送出方向と逆向きに貫流することを防止し、そのような貫流は、マスタブレーキシリンダの操作による制動時に生成されるブレーキ圧の低下を結果としてもたらすことになる。自動車の日常動作における圧倒的多数の制動では、「急な」ブレーキをかけるときも含めて、スリップ制御が行われることはなく、すなわち、スリップ制御の油圧ポンプが作動することはない。   The internal gear pump of the present invention having the constituent features of claim 1 has an axial disk that includes a check valve that communicates with the pressure chamber and can flow in the direction from the pressure chamber toward the pump discharge section. The check valve shields against the throughflow of the internal gear pump from the pump discharge part to the pump suction part, and when the internal gear pump is stopped, that is, the internal gear pump is not operating. Sometimes it prevents the internal gear pump from flowing in the direction opposite to the delivery direction. In the slip control type hydraulic vehicle brake equipment, the check valve of the internal gear pump according to the present invention allows the brake fluid to be discharged during brake operation without slip control, that is, when the internal gear pump is not operating. The internal gear pump is prevented from flowing in the direction opposite to the delivery direction, and such flow results in a decrease in brake pressure generated during braking by operation of the master brake cylinder. In an overwhelming number of brakings in the daily operation of an automobile, slip control is not performed even when a “steep” brake is applied, that is, a hydraulic pump for slip control is not operated.

本発明は逆止め弁の省スペースな組付けを可能にし、もしくは、少なくとも内接歯車ポンプへの取付を可能にする。逆止め弁を別個に格納することは不要であり、このことは、設計スペースのメリットに加えて、簡素化された組立という利点も有している。   The present invention allows space-saving assembly of the check valve or at least allows attachment to an internal gear pump. It is not necessary to store the check valve separately, which has the advantage of simplified assembly in addition to the design space advantage.

従属請求項は、請求項１に記載された本発明の好ましい実施形態と発展例を対象としている。   The dependent claims are directed to preferred embodiments and developments of the invention as defined in claim 1.

本発明による内接歯車ポンプは、特に、スリップ制御式および／または外力式の油圧車両ブレーキ設備のための油圧ポンプとして意図されている。スリップ制御式の車両ブレーキ設備では、油圧ポンプはリターンポンプとも呼ばれており、今日では主としてピストンポンプとして施工されている。   The internal gear pump according to the invention is particularly intended as a hydraulic pump for a slip-controlled and / or external force hydraulic vehicle brake installation. In slip-controlled vehicle brake equipment, the hydraulic pump is also called a return pump, and today it is mainly constructed as a piston pump.

次に、図面に示された実施例を参照しながら、本発明について詳しく説明する。図面は次のものを示している：   Next, the present invention will be described in detail with reference to the embodiments shown in the drawings. The drawing shows the following:

本発明による内接歯車ポンプを示す端面図である。1 is an end view showing an internal gear pump according to the present invention. FIG. 図１のＩＩ−ＩＩ線に沿って曲がる軸方向断面図である。FIG. 2 is an axial cross-sectional view bent along the line II-II in FIG. 1.

図１に示す本発明の内接歯車ポンプ１は２つの歯車２，３を有しており、すなわち内歯のリングギヤ２と、ここではピニオン３と呼ぶ外歯歯車とを有している。ピニオン３はリングギヤ２の中で偏心的に配置されており、両方の歯車２，３は互いに平行な軸を有しており、互いに噛み合っている。リングギヤ２は軸受リング４の中で回転可能に滑り支承されており、ピニオン３はポンプシャフト５に回転不能に配置されている。内接歯車ポンプ１を作動させるためにポンプシャフト５が回転駆動され、これと一緒に、ポンプシャフト５と回転不能に配置されたピニオン３も回転して、噛み合っているリングギヤ２を回転駆動する。回転方向は矢印Ｐで図示されている。   The internal gear pump 1 of the present invention shown in FIG. 1 has two gears 2, 3, that is, an internal ring gear 2 and an external gear called a pinion 3 here. The pinion 3 is arranged eccentrically in the ring gear 2, and both gears 2, 3 have axes parallel to each other and mesh with each other. The ring gear 2 is rotatably supported in the bearing ring 4, and the pinion 3 is disposed on the pump shaft 5 so as not to rotate. In order to operate the internal gear pump 1, the pump shaft 5 is rotationally driven, and together with this, the pinion 3 that is disposed so as not to rotate with the pump shaft 5 is also rotated to rotationally drive the meshed ring gear 2. The direction of rotation is indicated by the arrow P.

歯車２，３は、これらが噛み合っていない円周区域で、三日月形のポンプ室６を相互の間で区切っている。ポンプ室６には、多部分からなる三日月形の分離片７が配置されており、この分離片は部分三日月形もしくは半三日月形として把握することもでき、その形状からしばしばクレセントまたはクレセント体とも呼ばれる。分離片７は、ポンプ室６を吸込室８と圧力室９に分割する。吸込室８には取込穴１０が連通している。内接歯車ポンプ１の歯車２，３の歯先は、分離片７の外面と内面にそれぞれ当接しており、歯車２，３が回転駆動されると、分離片７の外面と内面に沿って摺動する。分離片７は歯車２，３と同じ幅であり、これら両方の歯車も同じ幅を有している。分離片７は歯車２，３の歯中間スペースで液体容積を取り囲んでおり、それにより歯車２，３の回転駆動は、吸込室８から圧力室９への液体の送出を引き起こす。分離片７は吸込室側の端部で、ポンプ室６を横向きに貫くピンによって構成された受け部１４に支持されている。   The gears 2 and 3 divide the crescent-shaped pump chamber 6 from each other in a circumferential area where they do not mesh with each other. The pump chamber 6 is provided with a multi-part crescent-shaped separation piece 7, which can be grasped as a partial crescent shape or a half crescent shape, and is often referred to as a crescent or crescent body due to its shape. . The separation piece 7 divides the pump chamber 6 into a suction chamber 8 and a pressure chamber 9. A suction hole 10 communicates with the suction chamber 8. The tooth tips of the gears 2 and 3 of the internal gear pump 1 are in contact with the outer surface and the inner surface of the separation piece 7 respectively. Slide. The separation piece 7 has the same width as the gears 2 and 3, and both these gears have the same width. The separating piece 7 surrounds the liquid volume at the tooth intermediate space of the gears 2 and 3, so that the rotational drive of the gears 2 and 3 causes the liquid to be delivered from the suction chamber 8 to the pressure chamber 9. The separation piece 7 is an end portion on the suction chamber side, and is supported by a receiving portion 14 constituted by a pin penetrating the pump chamber 6 sideways.

分離片７は、円弧状の外側の脚部１５と、同じく円弧状の内側の脚部１６とを有しており、これらの脚部は両方とも受け部１４から圧力室９の方向に延びている。外側の脚部１５の外面は、リングギヤ２の歯先円と同じ半径で円弧状に湾曲しており、これにリングギヤ２の歯の歯先が密閉式に当接し、回転駆動されるとこれに沿って摺動する。内側の脚部１６の内面は、ピニオン３の歯先円と同じ半径で円弧状に湾曲しており、これにピニオン３の歯の歯先が密閉式に当接し、回転駆動されるとこれに沿って摺動する。歯車２，３の歯先は、分離片７の脚部１５，１６に気密に当接する必要はなく、漏れ流が許容される。脚部１５，１６は、受け部側すなわち吸込室側の端部のところで互いに枢着結合されている。脚部１５，１６の間に配置されたＵ字型のねじりばね１７が、脚部１５，１６を互いに離れるように押圧し、そのようにして外側の脚部１５をリングギヤ２の歯先に向かって押圧するとともに、内側の脚部１６をピニオン３の歯先に向かって押圧する。脚部１５，１６の間で受け部側すなわち吸込室側の端部の近傍に配置されたシール部材１８が、脚部１５，１６と、またあとで説明するアキシャルディスク１２との間で密閉をする。分離片７は圧力室側の端部のところでは開いており、それにより、脚部１５，１６の間の中間スペースは圧力室９とも連通している。   The separating piece 7 has an arcuate outer leg 15 and an arcuate inner leg 16, both of which extend from the receiving part 14 in the direction of the pressure chamber 9. Yes. The outer surface of the outer leg 15 is curved in the shape of an arc with the same radius as the tooth tip circle of the ring gear 2, and when the tooth tip of the ring gear 2 abuts in a sealed manner and is driven to rotate, Slide along. The inner surface of the inner leg portion 16 is curved in an arc shape with the same radius as the tooth tip circle of the pinion 3, and the tooth tip of the pinion 3 abuts in a hermetically sealed manner and is rotationally driven. Slide along. The tooth tips of the gears 2 and 3 do not need to contact the leg portions 15 and 16 of the separation piece 7 in an airtight manner, and leakage flow is allowed. The leg portions 15 and 16 are pivotally coupled to each other at the receiving portion side, that is, at the end portion on the suction chamber side. A U-shaped torsion spring 17 arranged between the legs 15, 16 presses the legs 15, 16 away from each other, so that the outer legs 15 are directed toward the teeth of the ring gear 2. And the inner leg 16 is pressed toward the tooth tip of the pinion 3. A seal member 18 disposed between the leg portions 15 and 16 in the vicinity of the end on the receiving portion side, that is, the suction chamber side, seals between the leg portions 15 and 16 and the axial disk 12 described later. To do. The separation piece 7 is open at the end portion on the pressure chamber side, whereby the intermediate space between the leg portions 15 and 16 is also communicated with the pressure chamber 9.

内接歯車ポンプ１は、その歯車２，３の各々の端面にアキシャルディスク１２を有している。アキシャルディスク１２はポンプシャフト５によって、および受け部１４を構成するピンによって貫通されており、それにより回転不能に保持されている。アキシャルディスク１２は、ポンプシャフト５と受け部１４を通すための穴を備えており、部分的に重なり合う吸込室８から円周方向で１８０°を超えて、分離片７および圧力室９にわたって延びている。取込穴１０は、歯車２，３の回転方向Ｐで見てアキシャルディスク１２の手前で、ポンプ室６の吸込室８に連通する。   The internal gear pump 1 has an axial disk 12 on each end face of the gears 2 and 3. The axial disk 12 is pierced by the pump shaft 5 and by the pins constituting the receiving part 14, thereby being held non-rotatable. The axial disk 12 is provided with a hole for passing the pump shaft 5 and the receiving part 14, and extends over the separation piece 7 and the pressure chamber 9 in the circumferential direction from the partially overlapping suction chamber 8 by over 180 °. Yes. The intake hole 10 communicates with the suction chamber 8 of the pump chamber 6 in front of the axial disk 12 when viewed in the rotation direction P of the gears 2 and 3.

アキシャルディスク１２は、歯車２，３と反対を向いているほうの外面に、円周方向では受け部１４の近傍から圧力室９を超えて延びるとともに、半径方向ではほぼ歯車２，３の歯元円にまで延びる押圧区域２０を有している。図１では、両方の押圧区域２０のうちの一方の輪郭が破線で図示されており、この破線から押圧区域２０の形状、位置、および大きさが明らかである。各々のアキシャルディスク１２が押圧区域２０を有している。押圧区域２０はアキシャルディスク１２の外面にある浅い凹部であり、これらの凹部が圧力室９およびポンプ吐出部と連通しており、それによってアキシャルディスク１２の外面が圧力付勢されるとともに、その内面が歯車２，３および分離片７のそれぞれの端面に対して密閉のために押圧される。押圧区域２０は、その円周に沿って周回するように配置された押圧区域シール材２３によって封止されている。   The axial disk 12 extends beyond the pressure chamber 9 from the vicinity of the receiving portion 14 in the circumferential direction on the outer surface facing away from the gears 2 and 3, and substantially has tooth roots of the gears 2 and 3 in the radial direction. It has a pressing area 20 that extends to a circle. In FIG. 1, the outline of one of the two pressing areas 20 is indicated by a broken line, and the shape, position, and size of the pressing area 20 are apparent from the broken line. Each axial disk 12 has a pressing area 20. The pressing area 20 is a shallow concave portion on the outer surface of the axial disk 12, and these concave portions communicate with the pressure chamber 9 and the pump discharge part, whereby the outer surface of the axial disk 12 is pressure-biased and the inner surface thereof Are pressed against the respective end faces of the gears 2, 3 and the separating piece 7 for sealing. The pressing area 20 is sealed by a pressing area sealing material 23 arranged so as to circulate along the circumference thereof.

一方のアキシャルディスク１２の押圧区域２０はその外面に設けられており、他方のアキシャルディスク１２の押圧区域２０は、ポンプハウジング２１の端壁ないしハウジングカバー２２にある。図１では、ハウジングカバー２２は紙面よりも後方にあって見えておらず、軸受リング４が押し込まれたポンプハウジング２１は、図１には図示していない。両方のアキシャルディスク１２は、アキシャルディスク１２を内面から外面へ貫く貫通孔１１をそれぞれ有している。アキシャルディスク１２の内面では貫通孔１１が圧力室９に連通するとともに、外面では押圧区域２０に連通しており、それにより、押圧区域２０は貫通孔１１を通して内接歯車ポンプ１の圧力室９と連通している。それにより、内接歯車ポンプ１が作動すると、押圧区域２０で押圧室９と同じ圧力が発生する。アキシャルディスク１２の外面にある押圧区域２０での圧力付勢は、アキシャルディスク１２を、その内面がリングギヤ２、ピニオン３、および分離片７のそれぞれの端面に密閉式に当接するように押圧する。リングギヤ２およびピニオン３へのアキシャルディスク１２の当接は滑り軸受に比肩することができ、それにより、リングギヤ２とピニオン３の回転が可能である。   The pressing area 20 of one axial disk 12 is provided on the outer surface thereof, and the pressing area 20 of the other axial disk 12 is in the end wall or housing cover 22 of the pump housing 21. In FIG. 1, the housing cover 22 is not seen behind the paper surface, and the pump housing 21 into which the bearing ring 4 is pushed is not shown in FIG. 1. Both axial disks 12 each have a through hole 11 that penetrates the axial disk 12 from the inner surface to the outer surface. The through hole 11 communicates with the pressure chamber 9 on the inner surface of the axial disk 12 and communicates with the pressing area 20 on the outer surface, whereby the pressing area 20 communicates with the pressure chamber 9 of the internal gear pump 1 through the through hole 11. Communicate. Thereby, when the internal gear pump 1 is operated, the same pressure as that of the pressing chamber 9 is generated in the pressing area 20. The pressure urging in the pressing area 20 on the outer surface of the axial disk 12 presses the axial disk 12 so that the inner surface of the axial disk 12 abuts against the respective end surfaces of the ring gear 2, the pinion 3, and the separation piece 7 in a sealed manner. The contact of the axial disk 12 with the ring gear 2 and the pinion 3 can be compared with that of a sliding bearing, whereby the ring gear 2 and the pinion 3 can be rotated.

両方のアキシャルディスク１２のうちの一方は、アキシャルディスク１２および貫通孔１１の表面ないし内部に配置された逆止め弁２４を有している。本実施形態では逆止め弁２４はボールバルブであり、バルブ閉止体２５は、アキシャルディスク１２にある貫通孔１１の環状段部における鈍角で円錐台形の窪みとして構成されたバルブシート２６と協働作用するボールである。バルブ閉止体２５を形成するボールは、穴のあるプラスチック製のキャップ状のホルダ２７によって、ホルダ２７が押し込まれた貫通孔１１の大径区域で保持されている。逆止め弁２４は部分的に貫通孔１１に沈み込んでおり、すなわち、部分的にアキシャルディスク１２に組み込まれている。説明している図示した実施形態では、逆止め弁２４はばねを有していないが、原則として、ばねで付勢される逆止め弁も可能である（図示せず）。同様に、本発明は逆止め弁２４としてのボールバルブに限定されており、これ以外のバルブ設計形態も可能である（図示せず）。   One of the two axial disks 12 has a check valve 24 disposed on the surface or inside of the axial disk 12 and the through hole 11. In this embodiment, the check valve 24 is a ball valve, and the valve closing body 25 cooperates with a valve seat 26 configured as an obtuse and frustoconical recess in the annular step portion of the through hole 11 in the axial disk 12. It is a ball to play. The ball forming the valve closing body 25 is held in a large diameter area of the through hole 11 into which the holder 27 is pushed by a plastic cap-shaped holder 27 having a hole. The check valve 24 partially sinks in the through hole 11, that is, is partially incorporated in the axial disk 12. In the illustrated embodiment being described, the check valve 24 does not have a spring, but in principle a spring-biased check valve is also possible (not shown). Similarly, the present invention is limited to a ball valve as the check valve 24, and other valve designs are possible (not shown).

ポンプハウジング２１のハウジングカバー２２を通って吐出穴１３が押圧区域２０に連通しており、それにより、圧力室９は逆止め弁２４を通じて吐出穴１３に連通しており、およびこれに伴ってポンプ吐出部に連通している。逆止め弁２４は、圧力室９から押圧区域２０および吐出穴１３ないしポンプ吐出部へと貫流可能である。   The discharge hole 13 communicates with the pressing area 20 through the housing cover 22 of the pump housing 21, whereby the pressure chamber 9 communicates with the discharge hole 13 through the check valve 24, and accordingly the pump It communicates with the discharge part. The check valve 24 can flow from the pressure chamber 9 to the pressing area 20 and the discharge hole 13 or the pump discharge portion.

内接歯車ポンプ１が作動しておらず、すなわち駆動されておらず、リングギヤ２とピニオン３が止まっているとき、逆止め弁２４は、ポンプ吐出部から、すなわち吐出穴１３を通して、送出方向と逆向きにポンプ取込部へ、すなわち取込穴１０を通して、内接歯車ポンプ１が貫流されるのを妨げる。油圧車両ブレーキ設備のスリップ制御の油圧ポンプとして内接歯車ポンプ１が使用される場合、車両ブレーキ設備がマスタブレーキシリンダの操作によって操作され、マスタブレーキシリンダの操作によってブレーキ圧が生成されるとき、逆止め弁２４は、内接歯車ポンプ１のブレーキ圧低下を防止する。ポンプ吐出部すなわち吐出穴１３は、図示しない分離弁を介して間接的に、図示しないマスタブレーキシリンダと接続されている。   When the internal gear pump 1 is not activated, i.e. not driven, and the ring gear 2 and the pinion 3 are stopped, the check valve 24 moves from the pump discharge part, i.e., through the discharge hole 13 in the delivery direction. In the opposite direction, the internal gear pump 1 is prevented from flowing through the pump intake portion, that is, through the intake hole 10. When the internal gear pump 1 is used as a hydraulic pump for slip control of the hydraulic vehicle brake equipment, when the vehicle brake equipment is operated by operating the master brake cylinder and brake pressure is generated by operating the master brake cylinder, The stop valve 24 prevents a decrease in brake pressure of the internal gear pump 1. The pump discharge portion, that is, the discharge hole 13 is indirectly connected to a master brake cylinder (not shown) via a separation valve (not shown).

内接歯車ポンプ１は、図示しない油圧式の自動車ブレーキ設備の油圧ポンプとして意図されており、そこでいわゆるリターンポンプとして、アンチロックブレーキコントロール、駆動スリップ防止コントロール、および／またはビークルダイナミックコントロールなどのスリップ制御のために、および／または油圧式の外力式車両ブレーキ設備でのブレーキ圧生成のために用いられる。上述したスリップ制御についてはＡＢＳ，ＡＳＲ，ＦＤＲ，ＥＳＰなどの略語が使われており、ビークルダイナミックコントロールは日常語では横滑り防止コントロールとも呼ばれる。   The internal gear pump 1 is intended as a hydraulic pump of a hydraulic automobile brake equipment (not shown), and therefore, as a so-called return pump, slip control such as antilock brake control, drive slip prevention control, and / or vehicle dynamic control. And / or for the generation of brake pressure in hydraulic external force vehicle brake equipment. Abbreviations such as ABS, ASR, FDR, and ESP are used for the slip control described above, and vehicle dynamic control is also called skid prevention control in everyday terms.

１ 内接歯車ポンプ
２ リングギヤ
３ ピニオン
６ ポンプ室
８ 吸込室
９ 圧力室
１１ 貫通孔
１２ アキシャルディスク
２０ 押圧区域
２４ 逆止め弁
２５ バルブ閉止体
２６ バルブシート
２７ ホルダ DESCRIPTION OF SYMBOLS 1 Internal gear pump 2 Ring gear 3 Pinion 6 Pump chamber 8 Suction chamber 9 Pressure chamber 11 Through-hole 12 Axial disk 20 Press area 24 Check valve 25 Valve closing body 26 Valve seat 27 Holder

Claims (6)

油圧車両ブレーキ設備のための内接歯車ポンプであって、リングギヤ（２）と、前記リングギヤ（２）の中に偏心的に配置され、前記リングギヤ（２）と噛み合うピニオン（３）とを有しており、前記リングギヤ（２）と前記ピニオンはこれらが互いに噛み合う円周区域の範囲外にポンプ室（６）を相互の間で取り囲んでおり、該ポンプ室は、ポンプ取込部と連通する吸込室（８）と、ポンプ吐出部と連通する圧力室（９）とを有しており、さらに、前記リングギヤ（２）および前記ピニオン（３）の端面に当接する、前記圧力室（９）を側方で密閉するための回転不能のアキシャルディスク（１２）を有している、そのような内接歯車ポンプにおいて、前記アキシャルディスク（１２）は、前記圧力室（９）と連通し、前記圧力室（９）からポンプ吐出部へと向かう方向に貫流可能である逆止め弁（２４）を有していることを特徴とする内接歯車ポンプ。   An internal gear pump for hydraulic vehicle brake equipment, comprising a ring gear (2) and a pinion (3) eccentrically disposed in the ring gear (2) and meshing with the ring gear (2) The ring gear (2) and the pinion surround the pump chamber (6) between each other outside the circumferential area where they mesh with each other, and the pump chamber communicates with the pump intake. The pressure chamber (9) having a chamber (8) and a pressure chamber (9) communicating with the pump discharge section, and abutting against end faces of the ring gear (2) and the pinion (3) In such an internal gear pump having a non-rotatable axial disk (12) for sealing at the side, the axial disk (12) communicates with the pressure chamber (9), and the pressure Room (9) Internal gear pump, characterized in that it comprises a check valve (24) can flow in a direction towards the pump discharge part. 前記内接歯車ポンプ（１）は、前記リングギヤ（２）および前記ピニオン（３）と反対を向いているほうの前記アキシャルディスク（１２）の外面に、前記逆止め弁（２４）を通して前記内接歯車ポンプ（１）の前記圧力室（９）と連通する押圧区域（２０）を有していることを特徴とする、請求項１に記載の内接歯車ポンプ。   The internal gear pump (1) is connected to the outer surface of the axial disk (12) facing away from the ring gear (2) and the pinion (3) through the check valve (24). 2. Internal gear pump according to claim 1, characterized in that it has a pressing zone (20) in communication with the pressure chamber (9) of the gear pump (1). 前記逆止め弁（２４）は、前記リングギヤ（２）および前記ピニオン（３）の端面に当接する内面から外面へと前記アキシャルディスク（１２）を貫通して前記押圧区域（２０）に連通する貫通孔（１１）の表面または内部に配置されていることを特徴とする、請求項２に記載の内接歯車ポンプ。   The check valve (24) penetrates the axial disk (12) from the inner surface abutting on the end surface of the ring gear (2) and the pinion (3) to the outer surface and communicates with the pressing area (20). 3. Internal gear pump according to claim 2, characterized in that it is arranged on the surface or inside of the hole (11). 前記逆止め弁（２４）は前記アキシャルディスク（１２）に少なくとも部分的に組み込まれていることを特徴とする、請求項１に記載の内接歯車ポンプ。   The internal gear pump according to claim 1, characterized in that the check valve (24) is at least partially integrated in the axial disk (12). 前記アキシャルディスク（１２）は前記逆止め弁（２４）のバルブシート（２６）を有していることを特徴とする、請求項１に記載の内接歯車ポンプ。   The internal gear pump according to claim 1, characterized in that the axial disk (12) has a valve seat (26) of the check valve (24). 前記逆止め弁は、バルブ閉止体（２５）と、前記アキシャルディスク（１２）に取り付けられて前記バルブ閉止体（２５）を保持するホルダ（２７）とを有していることを特徴とする、請求項１に記載の内接歯車ポンプ。   The check valve has a valve closing body (25) and a holder (27) attached to the axial disk (12) and holding the valve closing body (25). The internal gear pump according to claim 1.
JP2013214680A 2012-10-19 2013-10-15 Internal gear pump for hydraulic vehicle brake installation Active JP6523598B2 (en)

Applications Claiming Priority (2)

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DE102012219132.1 2012-10-19
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KR200483063Y1 (en) 2015-11-24 2017-03-30 훌루테크 주식회사 internal gear pump
KR20170001931U (en) 2015-11-24 2017-06-01 훌루테크 주식회사 internal gear pump
FR3046819B1 (en) * 2016-01-14 2018-01-19 Renault S.A.S SLIDING SEALING DEVICE BETWEEN A HYDRAULIC PUMP BODY AND A TRANSMISSION ELEMENT

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WO2012079982A2 (en) * 2010-12-17 2012-06-21 Robert Bosch Gmbh Axial washer for a gear-type pump and gear-type pump comprising an axial washer of this type

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