CN104302918A - 多级油泵 - Google Patents

多级油泵 Download PDF

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Publication number
CN104302918A
CN104302918A CN201380025650.5A CN201380025650A CN104302918A CN 104302918 A CN104302918 A CN 104302918A CN 201380025650 A CN201380025650 A CN 201380025650A CN 104302918 A CN104302918 A CN 104302918A
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rotor
rotor case
isolating plate
oil pump
control system
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小田宏行
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Mikuni Corp
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Mikuni Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • F04C11/003Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle having complementary function
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10Outer members for co-operation with rotary pistons; Casings
    • F01C21/104Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C15/0065Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions for eccentric movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10Rotary-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
    • F04C2/102Rotary-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10Rotary-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
    • F04C2/103Rotary-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 one member having simultaneously a rotational movement about its own axis and an orbital movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/30Casings or housings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00Metals
    • F05C2201/02Light metals
    • F05C2201/021Aluminium

Landscapes

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

Abstract

以往的多级油泵由于全部为铁系材料,因此有重量大的问题。多级油泵(1)中转子(6)、(7)被串联连接。转子外壳(2)的内部由隔离板(5)隔开,且第1转子外壳(41)及第2转子外壳(42)在轴方向连接。第1转子外壳(41)及第2转子外壳(42)用定位销(8)与隔离板(5)接合。转子(6)、(7)由铁系材料制成,隔离板(2)由铝系材料制成。

Description

多级油泵
技术领域
本发明涉及一种特别是用于汽车等的多级油泵。
背景技术
以往,提供多个转子串联连接的多级油泵(例如专利文献1)。如图1记载的,次摆线泵(trochoid pump)(转子)4、5被直接收纳在有底筒状的机架主体1中。
专利文献1:日本专利特开2006-161614号公报
发明内容
发明要解决的问题
但是,上述构造由于全部为铁系材料,因此有重量大的问题。
本发明的目的在于提供一种可以解决所述问题的多级油泵。
解决问题的方法
为了解决上述问题,本发明的多级油泵为一种多个转子串联连接的多级油泵,其特征在于:所述多个转子在轴方向连接,并且收容在内部由隔离板隔开的转子外壳中;该转子外壳在轴向上被分割;所述隔离板的材料为比转子比重小的材料。
而且,本发明其特征为:所述转子为铁系材料,所述隔离板为铝系材料。
而且,本发明其特征为:所述转子外壳在转子外壳单元之间夹有隔离板,该隔离板与每个所述转子外壳单元是通过定位销接合而构成。
发明效果
根据本发明,由于所述隔离板为比转子比重小的材料,因此可以实现轻量化。
附图说明
图1为本发明的一实施方式的多级油泵的透视图。
图2为图1的多级油泵的正面图。
图3为从罩盖一侧看图1的多级油泵的分解透视图。
图4为从机架一侧看图1的多级油泵的分解透视图。
图5为从罩盖一侧看图1的多级油泵的分解透视图。
图6为从机架一侧看图1的多级油泵的分解透视图。
图7为图2的A-A矢向剖面图。
图8为表示在多级油泵中的油的流动的图。
具体实施方式
以下参照附图,对本发明的最佳实施方式进行说明。
多级油泵1如图1~6所示,具备:机架2、盖住机架2的罩盖3、收纳在机架2内的转子外壳4、收容在转子外壳4内并相互连接成一列的第1、第2转子6、7。
机架2呈有底筒状,并具备泵出口21与嵌合孔22。罩盖3上形成有嵌合孔31。转子外壳4在轴向上被分割成第1转子外壳41与第2转子外壳42,且第1转子外壳41与第2转子外壳42被隔离板5隔离。
第1转子外壳41与第2转子外壳42中,分别收容有第1转子6与第2转子7。第1转子外壳41中形成有相对于第1转子外壳41使轴心偏离的圆形的第1转子收容孔411,及嵌合孔412。第2转子外壳42中形成有相对于第2转子外壳42使轴心偏离的圆形的第2转子收容孔421,及嵌合孔422。第1转子外壳41与第2转子外壳42由第1转子收容孔411与第2转子收容孔421使轴心偏移,且配置在机架2内。
隔离板5在与第1转子外壳41及第2转子外壳42相同外径的圆板上设置有驱动轴11的插通孔51、第1转子吐出口52、第2转子吸入口53、第1转子吸入口54而构成。第1转子吐出口52与第2转子吸入口53分别形成在隔离板5的一面与隔离板5的另一面,并相互连通。从隔离板5的一面及另一面分别突出有定位销8。定位销8由SUJ(高碳轴承钢)制成。
隔离板5由比第1、第2转子6、7比重小的铝系材料制成。而且作为铝系材料,具体可以使用ADC12、ADC10、ADC14(压铸用),AC2A、AC4B(砂型铸件用),A2014、A2017等。
在第1转子外壳41与罩盖3之间,从第1转子外壳41一侧开始依次配置有侧板9及密封材料12。侧板9的构成为在与第1转子外壳41相同外径的圆板上设置驱动轴11的插通孔91、清洗孔92、及嵌合孔94。密封材料12用来将罩盖3与侧板9之间密封。
从隔离板5的一面突出的定位销8嵌合于第2转子外壳42的嵌合孔422及机架2的嵌合孔22,且如图7所示,将第2转子外壳42及机架2接合于隔离板5。从隔离板5的另一面突出的定位销8嵌合于第1转子外壳41的嵌合孔412、侧板9的嵌合孔94及罩盖3的嵌合孔31,且将第1转子外壳41、侧板9及罩盖3接合于隔离板5。
第1转子6为将第1内转子62配置于第1外转子61的内侧而构成,且由铁系的材料制成。作为铁系的材料,具体可以使用铁-铜-碳系(JPMA规格)、SMF4030等。第1外转子61为在具有与第1转子收容孔411的内径大致相同的外径的圆板上设置油充填孔611而构成,且旋转自如地配置在第1转子收容孔411内。油充填孔611配置为使轴心与第1外转子61一致。
第1外转子61与第1内转子62之间构成有:由油充填孔611的内周面、第1内转子62的外周面、隔离板5及侧板9隔离的4个油收容室。
第1内转子62固定在驱动轴11上,使驱动轴11的轴心与第1转子外壳41的轴心一致,且配置在第1外转子61内。
第2转子7为将第2内转子72配置于第2外转子71的内侧而构成。第2外转子71具有与第1外转子61相同的形状,且旋转自如地配置在第2转子收容孔421内。第2内转子72具有与第1内转子62相同的形状,且使驱动轴11的轴心与第2转子外壳42的轴心一致,且配置在第2外转子71内。
第2外转子71与第2内转子72之间构成有:由油充填孔611的内周面、第2内转子72的外周面、机架2隔离的4个油收容室。
接着,对多级油泵1的组装方法进行说明。
首先,将驱动轴11插通于隔离板5并用销定位,且将内转子组装到驱动轴11上,将外转子61、71嵌合到内转子62、72上。接着,在隔离板5上安装定位销8,且在隔离板5的一面及另一面组装转子外壳41、42,进一步在第2转子外壳42上组装侧板9。如上所述完成了临时组装后,收容到机架2内,将罩盖3安装到机架2内。
接着,对多级油泵1的操作进行说明。
第1转子6的油收容室如图8所示,是由第1转子吸入口54提供油。驱动轴11旋转时,第1外转子61通过第1内转子62在驱动轴11的旋转方向上旋转,油收容室也在驱动轴11的周围移动。油收容室伴随着远离驱动轴11增大容积,并从第1转子吸入口54吸入其相应的油量。而且,油收容室伴随着接近驱动轴11减少容积,并从清洗孔92和第1转子吐出口52吐出其相应的油量。
第2外转子71的油收容室由第2转子吸入口53提供油。驱动轴11旋转时,第2外转子71通过第2内转子72在驱动轴11的旋转方向上旋转,油收容室也在驱动轴11的周围移动。油收容室伴随着远离驱动轴11增大容积,并从第2转子吸入口53吸入其相应的油量。而且,油收容室伴随着接近驱动轴11减少容积,并从吐出口21吐出其相应的油量。
第1转子6的油收容室通过第1转子吐出口52吐出的油,通过第2转子吸入口53被吸入到第2转子7的油收容室。由于第1转子收容孔411相对于第2转子收容孔421偏移,所以伴随着增加第1转子6的油收容室的容积,减少第2转子7的油收容室的容积。因此,从第1转子吐出口52吐出的油,由增大容积的第2转子7的油收容室,原封不动地通过第2吸入口53吸入。
根据本实施方式,由于隔离板5为比转子6、7比重小的材料,因此可以实现轻量化。
而且,根据本实施方式,由于转子6、7为铁系材料,而隔离板5为铝系材料,因此可以抑制转子6、7与隔离板5之间产生烧结。
虽然在上述实施方式中,对隔离板5由铁系材料制成的情况进行了说明,但隔离板5也可以由镁系材料制成。并且,在隔离板5与转子外壳41、42之间利用定位销8接合的方法可随意选择,例如,可以形成如下结构:将隔离板5的外径设置为小于转子外壳41、42,在转子外壳41、42的内周部设置有可嵌合于隔离板5的外周部的段差,从转子外壳41、42的外侧在两者的嵌合部固定定位销8等的销,从而在转子外壳41、42与隔离板5之间限制转动。
而且,虽然在上述实施方式中,对从转子外壳4的侧面的隔离板5一侧向第1外转子61内的油收容室提供油的情况进行了说明,但是也可以形成从罩盖3一侧供给的结构。并且,也可以形成从罩盖3通过机架2供给到油收容室的结构。
附图标记说明
1    多级油泵
11   驱动轴
12   密封材料
2    机架
21   泵吐出口
22   嵌合孔
3    罩盖
31   嵌合孔
4    转子外壳
41   第1转子外壳
411  第1转子收容孔
412  嵌合孔
42   第2转子外壳
421  第2转子收容孔
422  嵌合孔
5    隔离板
51   插通孔
52   第1转子吐出口
53   第2转子吸入口
54   第1转子吸入口
6    第1转子
61   第1外转子
611  油填充孔
62   第1内转子
7    第2转子
71   第2外转子
711  油填充口
72   第2内转子
8    定位销(Dowel Pin)
9    侧板
91   插通孔
92   清洗孔
94   嵌合孔。

Claims (3)

1.一种多级油泵,其由多个转子串联连接而成,其特征在于:
所述多个转子在轴向连接,并且收容在内部由隔离板隔开的转子外壳中;
该转子外壳在轴向上被分割;
所述隔离板的材料为比转子比重小的材料。
2.如权利要求1所述的多级油泵,其特征在于:
所述转子为铁系,所述隔离板为铝系。
3.如权利要求1或2所述的多级油泵,其特征在于:
所述转子外壳在转子外壳单元之间夹有隔离板,该隔离板与每个所述转子外壳单元是通过定位销接合而构成的。
CN201380025650.5A 2012-05-17 2013-05-16 多级油泵 Pending CN104302918A (zh)

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JP2012-113479 2012-05-17
JP2012113479A JP6027768B2 (ja) 2012-05-17 2012-05-17 多段オイルポンプ
PCT/JP2013/063649 WO2013172409A1 (ja) 2012-05-17 2013-05-16 多段オイルポンプ

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US (1) US20150118087A1 (zh)
EP (1) EP2868927A4 (zh)
JP (1) JP6027768B2 (zh)
CN (1) CN104302918A (zh)
WO (1) WO2013172409A1 (zh)

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CN113586437A (zh) * 2021-08-20 2021-11-02 宁波开发区安德鲁精铸有限公司 一种油泵隔离板及其加工工艺

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JP2013238209A (ja) 2013-11-28
US20150118087A1 (en) 2015-04-30

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