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    Guide and seal assembly for a piston of a drowned piston type pump
    81.
    发明授权
    Guide and seal assembly for a piston of a drowned piston type pump 失效
    淹没活塞式泵的活塞的导向和密封组件

    公开(公告)号：US4386782A

    公开(公告)日：1983-06-07

    申请号：US284549

    申请日：1981-07-20

    Applicant: Corrado Reverberi

    Inventor： Corrado Reverberi

    IPC: F04B53/16 ,  F16J15/00 ,  F16J15/56 ,  F16J15/18 ,  F04B39/00

    CPC classification number: F16J15/56 ,  F04B53/164 ,  F16J15/004 ,  F05C2201/0478

    Abstract: A guide and seal assembly for a piston of a drowned piston type pump comprising at least a chamber within which the said piston reciprocates to suck into and supply from the said chamber a liquid. The assembly comprises a ring having a first frontal seat for a first annular seal element having a substantially C-shaped cross-section and an annular groove formed in the inner cylindrical surface of the ring and arranged to accommodate a second annular seal element of substantially U-shaped cross-section; a first and a second annular cavities formed in the ring communicate with each other by means of at least a radial hole, and the first annular cavity communicates with at least a discharge hole for the liquid which gathers in the first cavity.

    Abstract translation: 一种用于淹没活塞式泵的活塞的导向和密封组件，至少包括一个室，所述活塞在其中往复运动以吸入所述腔室并从所述腔室供应液体。 组件包括具有第一正面座的环，用于第一环形密封元件，其具有基本上C形的横截面，以及形成在环的内圆柱形表面中的环形槽，并且布置成容纳基本为U的第二环形密封元件 形截面; 形成在所述环中的第一和第二环形腔通过至少一个径向孔彼此连通，并且所述第一环形腔至少与用于聚集在所述第一腔中的液体的排放孔连通。

    Double diaphragm pump
    82.
    发明授权
    Double diaphragm pump 失效
    双隔膜泵

    公开(公告)号：US4242061A

    公开(公告)日：1980-12-30

    申请号：US946770

    申请日：1978-09-28

    Applicant: E. Dale Hartley

    Inventor： E. Dale Hartley

    IPC: F04B43/02 ,  F04B23/06 ,  F04B39/00 ,  F16H21/14

    CPC classification number: F04B43/026 ,  F05C2201/0478 ,  F05C2253/12 ,  Y10T74/18208 ,  Y10T74/18256

    Abstract: A pump having first and second pumping chambers and a double-acting reciprocating piston which partly defines the pumping chambers. The piston is reciprocated by a rotatable drive member which may include an eccentric. The rotatable drive member has a peripheral surface which engages first and second wear members lying on opposite sides of the drive member. Each of the wear members is mounted on the piston for at least limited movement toward and away from the drive member. First and second resilient elements are positioned between the first wear member and the piston and the second wear member and the piston, respectively. The resilient elements resiliently support the wear members to provide a good driving connection between the drive member and the piston.

    Abstract translation: 具有第一和第二泵送室的泵和部分地限定泵送室的双作用往复活塞。 活塞由可旋转的驱动构件往复运动，该驱动构件可包括偏心轮。 可旋转驱动构件具有与位于驱动构件的相对侧上的第一和第二磨损构件接合的外周表面。 每个磨损构件安装在活塞上以朝向和远离驱动构件的至少有限的运动。 第一和第二弹性元件分别位于第一耐磨构件和活塞之间，并且分别位于第二耐磨构件和活塞之间。 弹性元件弹性地支撑磨损构件以在驱动构件和活塞之间提供良好的驱动连接。

    Integrated high capacity compressor
    83.
    发明授权
    Integrated high capacity compressor 失效
    集成大容量压缩机

    公开(公告)号：US4190402A

    公开(公告)日：1980-02-26

    申请号：US575112

    申请日：1975-05-06

    Applicant: Meredith W. Meece ,  Charles W. Ickes ,  Fred H. Moore

    Inventor： Meredith W. Meece ,  Charles W. Ickes ,  Fred H. Moore

    IPC: F04B35/04 ,  F04B39/00 ,  F04B39/04 ,  F04B39/06 ,  F04B39/10 ,  F04B39/12 ,  F16J10/04 ,  F04B27/02

    CPC classification number: F04B39/122 ,  F04B35/04 ,  F04B39/0005 ,  F04B39/04 ,  F04B39/066 ,  F04B39/1073 ,  F16J10/04 ,  F05C2201/0466 ,  F05C2201/0478 ,  F05C2253/12

    Abstract: A compressor motor has a flywheel connected directly to a motor shaft which drives two opposed pistons that are simultaneously compressed so that the bearing loads are balanced. A double inlet blower is connected to said shaft and has one inlet for drawing cooling air through a crankcase for cooling the connecting rod bearings. A second inlet draws air through a vent formed in a shroud member. The blower discharges the air from both inlets into the shroud member which then directs the air to the cylinder sleeves and heads for cooling purposes. The cylinder, piston skirts and piston rings are self-lubricated by containing a fluorocarbon thereby substantially reducing the heat generating friction between said members.

    Abstract translation: 压缩机电动机具有直接连接到电动机轴的飞轮，其驱动两个相对的同时压缩的活塞，使得轴承负载平衡。 双入口鼓风机连接到所述轴上，并且具有用于通过曲轴箱抽取冷却空气以冷却连杆轴承的一个入口。 第二入口通过形成在护罩构件中的通风口吸入空气。 鼓风机将空气从两个入口排出到护罩部件中，然后将空气引导到气缸套筒和头部用于冷却目的。 气缸，活塞裙和活塞环通过含有碳氟化合物而自润滑，从而大大减少了所述构件之间的发热摩擦。

    Piston compressor for gaseous fluids
    84.
    发明授权
    Piston compressor for gaseous fluids 失效
    用于气态流体的活塞式压缩机

    公开(公告)号：US4023467A

    公开(公告)日：1977-05-17

    申请号：US621020

    申请日：1975-10-09

    Applicant: Helmut Thurner

    Inventor： Helmut Thurner

    IPC: F04B39/00 ,  F16J1/00 ,  F16J1/09 ,  F04B21/04 ,  F15B13/04 ,  F16J9/08

    CPC classification number: F04B39/0005 ,  F16J1/00 ,  F16J1/006 ,  F16J1/09 ,  F05C2201/0478 ,  F05C2225/04

    Abstract: To permit dry operation of a piston within the cylinder, the cylinder is made of metal, and the piston is made of polytetrafluorethylene; the piston, preferably, is formed with an annular ring groove extending downwardly from an end face thereof to leave a circumferential lip, the groove having a spring located therein biasing the lip outwardly against the cylinder wall, to provide for sealing contact of the lip against the cylinder wall, which is additionally reinforced by pressure of the gas being compressed by movement of the piston within the cylinder, tending to expand the lip against the piston surface, at the time when the compression is highest, and sealing is the most desired.

    Abstract translation: 为了允许缸内活塞的干运行，气缸由金属制成，活塞由聚四氟乙烯制成; 优选地，活塞形成有从其端面向下延伸以留下周向唇缘的环形环槽，该凹槽具有位于其中的弹簧，其将唇缘向外偏压抵靠气缸壁，以提供唇缘与 气缸壁通过气缸内的活塞的运动而被压缩的气体加压，在压缩最高时倾向于使唇部膨胀到活塞表面，并且密封是最需要的。

    Piston pump with self-lubricating pistons
    85.
    发明授权
    Piston pump with self-lubricating pistons 失效
    活塞泵与自润滑活塞

    公开(公告)号：US3811798A

    公开(公告)日：1974-05-21

    申请号：US27315472

    申请日：1972-07-19

    Applicant: HYDRAULIC SYST INC

    Inventor： BICKFORD J

    IPC: F04B1/12 ,  F04B1/14 ,  F04B23/06 ,  F01B31/10

    CPC classification number: F04B1/14 ,  F04B1/122 ,  F04B23/06 ,  F05C2201/0478

    Abstract: A pump having pistons that actuate a pumping device by suction and compression and having novel means for sealing the fluid being pumped from the lubricating fluid and for ensuring lubrication between the pistons and their cylinders. The reciprocation of the pistons is made to pump the lubricating fluid between them and the cylinder and to return the fluid to an internal lubricant reservoir. A swash plate acts also as a circulating pump for sending the lubricating fluid through an external cooling reservoir.

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