CN102459815A - 具有改进的转子和叶片延伸环的叶片泵 - Google Patents

具有改进的转子和叶片延伸环的叶片泵 Download PDF

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CN102459815A
CN102459815A CN2010800276045A CN201080027604A CN102459815A CN 102459815 A CN102459815 A CN 102459815A CN 2010800276045 A CN2010800276045 A CN 2010800276045A CN 201080027604 A CN201080027604 A CN 201080027604A CN 102459815 A CN102459815 A CN 102459815A
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rotor
vane pump
blade
diameter
axial
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CN102459815B (zh
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道格拉斯·G·亨特
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SLW Automotive Inc
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SLW Automotive Inc
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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
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/30Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C2/3442Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • 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
    • F01C21/08Rotary pistons
    • F01C21/0809Construction of vanes or vane holders
    • F01C21/0818Vane tracking; control therefor
    • F01C21/0827Vane tracking; control therefor by mechanical means
    • F01C21/0836Vane tracking; control therefor by mechanical means comprising guiding means, e.g. cams, rollers
    • 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
    • F04C2240/00Components
    • F04C2240/20Rotors
    • 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
    • F04C2250/00Geometry
    • F04C2250/10Geometry of the inlet or outlet
    • F04C2250/101Geometry of the inlet or outlet of the inlet

Abstract

提供了一种流体叶片泵,该流体叶片泵包括壳体,壳体提供带大体圆柱形壁的控制容积,其中所述控制容积具有入口和出口。提供具有圆柱形壁控制容积内的可旋转的轴线的转子。转子具有与圆柱形壁可操作地相关联的多个可径向运动的叶片。提供单个叶片环,该叶片环与转子可操作地相关联,转子具有接触叶片的内径边缘的外径表面。

Description

具有改进的转子和叶片延伸环的叶片泵
[0001] 相关申请的交叉引用
[0002] 本申请要求享有2009年4月21日提交的美国临时申请第61/214,223号的权益。 发明领域
[0003] 本发明涉及流体叶片泵,尤其是用于加压润滑内燃机的叶片泵。
[0004] 发明背景
[0005] 几乎所有内燃机都具有某种类型的内部正压润滑系统。为了在润滑系统内提供加压的油流,许多机动车辆的内燃机依赖于回转型泵(gerotor type pump)。虽然已经证明回转型泵是高度可靠的,但是期望提供需要较少的发动机耗能以便改善燃料经济的可变排量的叶片泵。
[0006] 发明概述
[0007] 本发明提出一种叶片泵,该叶片泵包括壳体,壳体提供带大体圆柱形壁的控制容积,其中所述控制容积具有入口和出口。提供具有圆柱形壁控制容积内的可旋转的轴线 (axis)的转子。转子接纳与圆柱形壁可操作地相关联的多个可径向运动的叶片。提供单个叶片环,该叶片环与转子可操作地相关联,转子具有接触叶片的内径边缘的外径表面。
[0008] 从下文提供的详细描述,本发明另外的适用范围区域将变得明显。应理解,详细描述和具体的实施例虽然表示本发明的优选实施方案,但是它们预期仅基于阐释的目的而并不预期限制本发明的范围。
[0009] 附图简述
[0010] 从详细描述和附图,将更充分理解本发明,其中:
[0011] 图1是叶片泵的示意性顶部平面图;
[0012] 图2是现有的叶片泵的示意性截面图;
[0013] 图3是根据本发明的叶片泵的示意性截面图;
[0014] 图4是根据本发明的叶片泵的转子的仰视图;
[0015] 图5是根据本发明的叶片泵的转子的侧视立面图;
[0016] 图6是根据本发明的叶片泵的转子的俯视图;
[0017] 图7是图4-6中显示的转子的顶部透视图;
[0018] 图8是沿着图4的线8-8截取的截面图;
[0019] 图9是沿着图6的线9-9截取的截面图;
[0020] 图10是沿着图6的线10-10截取的截面图;
[0021] 图11是本发明的叶片泵中所使用的叶片环的透视图;以及
[0022] 图12是等同于沿着图6的线9-9截取的截面图的截面图,其中该截面图描绘了本发明的可选择的实施方案。
[0023] 优选实施方案的详细描述
[0024] 下面的优选实施方案的描述实质上仅仅是示例性的且绝不意图限制本发明、其应用或用途。[0025] 参考图1和图3,根据本发明的发动机润滑流体叶片泵具有泵壳体或壳体44、44’ 和大体竖直的圆柱形转子10。壳体44、44’显示为具有两部分,但是根据特定应用,可以采用更多或更少数量的部分。转子10具有内径,且两个几何形状相对的平面物(flat) 12提供了其与内燃机曲轴的连接。虽然描述了相对的平面物12,但是可以采用与曲轴的其他类型的连接。本发明的目前示例性的实施方案描述了与内燃机曲轴的连接;然而,可能的可选择的主动轴包括平衡轴、凸轮轴、链或齿轮驱动的泵轴以及泵与内燃机之间其他合适的连接, 该连接包括链轮或花键。转子10通常由粉末金属或其他合适的材料制造或由实心棒机械加工。
[0026] 现在参考附图,一般而言,转子10具有多个径向槽14。每一个径向槽14以腔16 终止。转子10具有轴向凹部22,轴向凹部22通常是单数的且在转子的一侧上。凹部22位于内径壁27与外径壁四之间且部分使内径壁27与外径壁四隔开并为叶片环84提供操作空间。转子10的内径壁27具有外径表面沈和内表面23。外径壁四具有内径表面28 和倾斜的外表面31。延伸跨过内径表面沈与外径表面28之间的轴向凹部22的是一系列轴向肋状物30,这些肋状物30增加了转子10结构的刚度。此外,如果基于特定的应用不需要肋状物30的话,那么不具有肋状物30也在本发明的范围内。轴向肋状物30具有末端32,末端32仅部分延伸凹部22的长度,为叶片环84留有空间。邻近径向槽14,转子具有叶片支撑物34。转子具有旋转轴线38。由偏心环42提供的大体圆柱形的壁50相对于旋转轴线38被偏心定位。偏心环42被位置可调节地安装在壳体44、44’内。对调节偏心环42在壳体44、44’内的位置的系统的进一步的解释讨论在美国专利第6,896,489号或第 6,790,013号或第7,018,178号或第7,396,214号或第7,674,095号或公布的美国专利申请号2006/0104823以及公布的PCT申请号PCT/US2008/005631中;所有这些都是Hunter 等人的已公布的或授权的,它们的公开内容据此通过引用而明确并入。
[0027] 控制容积由内径50、转子10以及轴向隔开的第一壳体表面52和第二壳体表面M 界定。控制容积进一步被叶片76分成单个可变的泵送室。控制容积通过壳体44、44’内的拱形入口 58和拱形出口 60接纳并排放流体。如图1所示,转子10以顺时针方向旋转。入口 58在转子10的旋转方向上还被径向加宽。以大体相反的方式,出口 60在旋转方向上被径向变细。
[0028] 入口具有主侧面72和任选的次侧面74。转子10沿着外径壁四的倾斜的外表面 31具有复合的径向锥状物70,且锥状物70在邻近壳体入口端72的转子面处产生了较小的转子直径71。锥状物70允许主端口 72的内部边缘具有较小的半径以便油以较低的切线速度进入控制容积。在转子的每一个槽14内可径向运动的是相应的叶片76。叶片76的形状是大体矩形的,具有它们的与偏心环的内径50可操作相关联的外径端78。叶片76还具有接触叶片环84的外径边缘的内径边缘80。叶片环84具有至少200%的轴向长度对径向厚度的比。叶片环84以其最大轴向长度沿着大体矩形的叶片的轴向长度的主要部分延伸且延伸叶片的轴向长度的至少50%。轴向长度在图3中显示为双箭头标记的“Y”,而径向厚度显示为双箭头标记的“X”。叶片环84具有一系列轴向槽88,轴向槽88被安装在转子的轴向肋状物30上。
[0029] 采用转子10的叶片泵基于好几种原因比现有的叶片泵有优势。锥状物70为入口提供了更多的总流体进入区域。转子10上的锥状物70还允许来自入口区域72的更多的流体进入更径向向内位置的泵。与图2显示的现有技术的叶片泵9的入口 71相比,此径向向内的位置减轻了因降低在转子以较高的旋转速度,如高于3000rpm旋转时使转子和叶片的速度匹配所需的流体速度而引起的气穴现象。
[0030] 转子10还具有前述更深的单个凹部22,这造成转子10比其先前的转子11 (图2) 轻,转子11具有其多个浅凹部13(图2)。此外,现有技术的转子11需要两个凹部13,两个凹部13内放置了两个叶片环15。由于叶片环15具有通常短的轴向长度,因此必须增大它们的径向厚度来提供刚度以便支撑叶片43。叶片环15的径向厚度增大了转子的直径和为避免气穴所需的流体速度,或对于给定的转子11的外径,与内径端90和外径端92相比,减小了外径端17和/或内径端19的径向厚度。转子10的径向端的额外的径向厚度改进了泵的高压区与低压区之间的流体密封。
[0031] 将本发明与图2显示的现有技术进行比较,叶片环84的轴向长度允许叶片环84 在径向上比叶片环15薄,但仍具有所需的刚度。转子10被允许在同一径向间距上具有内径端90和外径端92(轴向面)的增大的径向厚度,原因是叶片环84的径向薄度。由于转子10与仅一个叶片环84 —起使用,消除了现有转子11的其中一个凹部13,因此给予了转子10的总的密封端长度96,这再次增强了密封能力和泵效率。此外,通过消除两个现有的叶片环15中的一个的盲组装布置(blind assembly placement)而降低了组装复杂性。
[0032] 壳体内的自出口的路径104通过路径102与转子的邻近空腔16的区域相连以允许叶片以向外的方向被加压。任选的壁34还给予叶片76悬臂支撑,且在某些应用中可以有助于由叶片分开的分隔的泵室之间的密封且还可以增加转子10的结构的刚度。
[0033] 图12描绘了本发明的可选择的实施方案。转子500显示为具有凹部502,凹部 502仅具有单个外径壁504且没有内径壁。使用可选择的凹部502提供了明显的成本节约和材料节约,并为叶片环提供了额外的操作空间,或如果不需要以液压方式使凹部区域502 与主动轴区域分开的话,允许转子直径被减小或外径壁厚度被增大。
[0034] 本发明的描述实质上仅仅是示例性的,且因而并不偏离本发明要点的变化预期在本发明的范围内。这样的变化不应被认为是偏离本发明的精神和范围。

Claims (18)

1. 一种叶片泵,包括:壳体,其提供带壁的控制容积,所述壳体具有入口和出口;转子,其具有可旋转的轴线和多个可径向运动的叶片,所述叶片与所述转子可滑动地连接并被圆柱形壁容纳,所述圆柱形壁相对于所述可旋转的轴线被偏心定位,所述转子的外径表面沿着所述转子的轴向长度被径向地逐渐变小以与所述壳体的入口的内径对齐,所述内径小于最大的转子直径;单个叶片环,其被定位在所述转子的轴向凹部内,其中所述单个叶片环具有所述多个叶片的所述轴向长度的至少50%的轴向长度。
2.如权利要求1所述的叶片泵,其中所述泵是发动机润滑泵,且其中所述转子与发动机曲轴连接。
3.如权利要求1所述的叶片泵,还包括偏心环,所述偏心环至少部分限定所述转子且可运动地被定位在所述壳体内,在所述转子与所述壳体之间。
4.如权利要求1所述的叶片泵,其中所述叶片环具有至少200%的轴向长度对径向厚度的比。
5.如权利要求1所述的叶片泵,其中所述转子在内径壁与外径壁之间具有肋状物。
6.如权利要求5所述的叶片泵,其中所述叶片环具有轴向槽以接纳所述转子的肋状物。
7.如权利要求1所述的叶片泵,其中所述转子具有径向朝所述叶片的内径端内的空腔,且其中所述空腔和所述轴向凹部通过流体连接至所述出口的通路被加压。
8.如权利要求1所述的叶片泵,其中所述转子具有邻近所述叶片的突起的支撑壁,所述支撑壁突起到所述锥状物内。
9. 一种叶片泵,包括:壳体,其提供带壁的控制容积,所述壳体具有入口和出口 ;转子,其具有可旋转的轴线和多个可径向运动的叶片,所述叶片与所述转子和圆柱形壁可连接,所述圆柱形壁相对于所述可旋转的轴线被偏心定位,所述转子沿着邻近所述壳体的所述入口的轴向长度被径向地逐渐变小;单个凹部,其形成在所述转子的在内径壁与外径壁之间的表面上;和单个叶片环,其被定位在所述转子的所述轴向凹部内。
10.如权利要求9所述的叶片泵,其中所述单个叶片环具有所述多个叶片的所述轴向长度的至少50%的轴向长度。
11.如权利要求9所述的叶片泵,还包括至少一个轴向肋状物,所述轴向肋状物延伸穿过在所述转子的所述内径壁与所述外径壁之间的所述凹部,其中当所述单个叶片环被定位在所述凹部内时,所述单个叶片环置于所述至少一个轴向肋状物上。
12.如权利要求9所述的叶片泵,其中所述泵是发动机润滑泵,且其中所述转子与发动机曲轴连接。
13.如权利要求9所述的叶片泵,还包括偏心环,所述偏心环至少部分限定所述转子且可运动地被定位在所述壳体内,在所述转子与所述壳体之间。
14.如权利要求9所述的叶片泵,其中所述叶片环具有至少200%的轴向长度对径向厚度的比。
15.如权利要求9所述的叶片泵,其中所述转子在内径壁与外径壁之间具有肋状物。
16.如权利要求15所述的叶片泵,其中所述叶片环具有轴向槽以接纳所述转子的肋状物。
17.如权利要求9所述的叶片泵,其中所述转子具有径向朝所述叶片的内径端内的空腔,且其中所述空腔和所述轴向凹部通过流体连接至所述出口的通路被加压。
18.如权利要求9所述的叶片泵,其中所述转子具有邻近所述叶片的突起的支撑壁,所述支撑壁突起到所述锥状物内。
CN201080027604.5A 2009-04-21 2010-04-21 具有改进的转子和叶片延伸环的叶片泵 Expired - Fee Related CN102459815B (zh)

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US8672658B2 (en) 2014-03-18
CN102459815B (zh) 2014-09-24
DE112010001701B4 (de) 2014-06-18
WO2010123556A2 (en) 2010-10-28
WO2010123556A3 (en) 2011-01-20
DE112010001701T5 (de) 2012-12-06

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