PUMP WITH INTEGRAL SUMP
    1.
    发明申请
    PUMP WITH INTEGRAL SUMP 审中-公开
    PUMP与整体SUMP

    公开(公告)号:WO1994006658A1

    公开(公告)日:1994-03-31

    申请号:PCT/US1993008672

    申请日:1993-09-14

    CPC classification number: F04B53/1002 B60T8/4031 F04B23/023

    Abstract: The pump (10) with integral sump (100) comprises a pump body (12) having therein a bore (18) in which is disposed a resiliently biased and reciprocating pump piston (30). One end of the pump piston (30) is received within an end opening (22) of the bore (18) and a central opening (42) of an outlet member (40). The outlet member (40) includes outlet valve openings (45) each housing a coil spring (41) or elastomeric member (41A) biasing a valve member (43) against a valve seat (49). The valve openings (45) communicate with an interior opening or pumping chamber (44) of the outlet member (40) wherein a spring member (46) biases an inlet valve (60) against an inlet seat plate (70). The inlet seat plate (70) has a central opening (72) communicating on one side with a sump chamber (110). A sump sleeve (90) is located sealingly within the bore (18) and abuts the inlet seat plate (70), contains therein a slidable sump piston (98) biased by a sump spring (96), and has a plurality of inlet openings (92). Reciprocating movement of the pump piston (30) draws fluid through the inlet opening (92), sump chamber (110), central opening (72) of the inlet seat plate (70), and past the retracted inlet valve (60) so that after closure of the inlet valve (60) when the pump piston is at dead center, subsequent movement of the pump piston (30) into the bore (18) causes the fluid to be pumped past the valve seats (49) and valve members (43) and through outlet openings (48).

    Abstract translation: 具有整体贮槽(100)的泵(10)包括其中具有孔(18)的泵体(12),其中设置有弹性偏压和往复泵活塞(30)。 泵活塞(30)的一端容纳在孔(18)的端部开口(22)和出口构件(40)的中心开口(42)内。 出口构件(40)包括出口阀开口(45),每个出口阀开口(45)容纳螺旋弹簧(41)或弹性构件(41A),其将阀构件(43)偏置抵靠阀座(49)。 阀开口(45)与出口构件(40)的内部开口或泵送室(44)连通,其中弹簧构件(46)将入口阀(60)偏置在入口座板(70)上。 入口座板(70)具有在一侧与贮槽(110)连通的中心开口(72)。 贮槽套管(90)密封地定位在孔(18)内并邻接入口座板(70),其中容纳有由贮槽弹簧(96)偏置的可滑动的贮槽活塞(98),并且具有多个入口 (92)。 泵活塞(30)的往复运动通过入口(92),贮液室(110),入口座板(70)的中心开口(72)和通过缩回入口阀(60)吸入流体,使得 在泵活塞处于死点时关闭入口阀(60)之后,泵活塞(30)进入孔(18)的随后运动使得流体被泵送通过阀座(49)和阀构件 43)和通过出口开口(48)。

    LOW-NOISE PUMP ASSEMBLY
    2.
    发明申请
    LOW-NOISE PUMP ASSEMBLY 审中-公开
    低噪声泵组件

    公开(公告)号:WO1990003520A1

    公开(公告)日:1990-04-05

    申请号:PCT/US1989003030

    申请日:1989-07-12

    CPC classification number: F04B1/0413 B60T8/4031 Y10T74/18296

    Abstract: The low-noise pump assembly (10) comprises a unitized assembly wherein a drive shaft (17) of the motor (16) is mated directly with an eccentric coupling (23). The eccentric coupling (23) has a through bore (21) which receives at one end the drive shaft (17) and at the other end a center post (30) of the pump housing. Disposed between the center post (30) and eccentric coupling (23) is a radially inner bearing mechanism (60), and disposed between the exterior of the eccentric coupling (23) and an opening (52) of a ring member (50) is a radially outer bearing mechanism (70). The ring member (50) engages at least one reciprocating piston assembly (45). Rotation of the drive shaft (17) causes rotation of the eccentric coupling (23) to effect reciprocating motion of the pump piston (48).

    GEAR PUMP WITH CONTROLLED CLAMPING FORCE
    3.
    发明申请
    GEAR PUMP WITH CONTROLLED CLAMPING FORCE 审中-公开
    带控制夹紧力的齿轮泵

    公开(公告)号:WO1994007030A1

    公开(公告)日:1994-03-31

    申请号:PCT/US1993008671

    申请日:1993-09-14

    CPC classification number: F04C2/088 F04C15/0026

    Abstract: A pump having a pair of intermeshing gear members retained in first and second bushings located in a cavity for pressuring a fluid from an entrance pressure to a desired exit pressure. The first bushing has a passage located therein which communicates a selected pressure less than the exit pressure which acts on an outer face of the first bushing to develop a clamping force which urges an inner face on the first bushing into engagement with the intermeshing gear members and the intermeshing gear member into engagement with an inner face on said second bushing to seal the entrance chamber from the exit chamber.

    Abstract translation: 一种具有一对相互啮合的齿轮构件的泵,其保持在位于空腔中的第一和第二衬套中,用于将流体从入口压力加压到期望的出口压力。 第一衬套具有位于其中的通道,其使作用在第一衬套的外表面上的出口压力小于所述出口压力的选定压力发生夹紧力,所述夹紧力促使第一衬套上的内表面与相互啮合的齿轮构件接合, 相互啮合的齿轮构件与所述第二衬套上的内表面接合以将入口室与出口室密封​​。

    PRODUCTION OF COMPLEX CAVITIES INSIDE CASTINGS OR SEMI SOLID FORMS
    4.
    发明申请
    PRODUCTION OF COMPLEX CAVITIES INSIDE CASTINGS OR SEMI SOLID FORMS 审中-公开
    生产铸件或半固体形式的复合材料

    公开(公告)号:WO1992004999A1

    公开(公告)日:1992-04-02

    申请号:PCT/US1991006353

    申请日:1991-09-05

    CPC classification number: B22C9/10 B22D19/0072

    Abstract: The production of complex cavities inside castings or semi solid forms is effected by forming a core pattern (10) of a low melting point metal in order to provide a rigid metal core pattern (10). The pattern (10) is then nickel coated using either electroplating or electroless nickel plating. The metal core pattern (10) is melted out of the nickel plating to provide a nickel liner core (16). The nickel liner core (16) is placed within a mold or die cavity, and molten metal introduced into the cavity in order to provide a casting or form (30). The casting or form (30) is removed from the cavity and includes therein a plurality of passageways (20) each of which is defined and surrounded by a corrosion resistent nickel liner surface (22).

    Abstract translation: 通过形成低熔点金属的芯图案(10)以提供刚性金属芯图案(10)来实现铸件或半固体形式内的复杂空腔的生产。 然后使用电镀或无电镀镍镀镍图案(10)。 金属芯图案(10)从镍镀层中熔化以提供镍衬垫芯(16)。 镍衬垫芯(16)被放置在模具或模腔内,并且熔融金属被引入空腔中以提供铸件或形式(30)。 铸件或模具(30)从空腔中移除并且在其中包括多个通道(20),每个通道由耐蚀镍衬垫表面(22)限定和围绕。

Patent Agency Ranking