子分类：
- F04C15/0003： .{在旋转活塞机械或泵中的密封装置(一般密封入F16J)}
- F04C15/0042： .{作用在机械或泵上的力平衡系统(不是通过流体压力进行的间隙调整入 F01C21/102)}
- F04C15/0053： .{起动用通风装置}
- F04C15/0057： .{特别适合于机械或泵的驱动元件、制动器、联轴器、变速器(制动器、联轴器、变速器本身入F16,B60)}
- F04C15/0088： .{润滑(一般机器或发动机的润滑入F01M)}
- F04C15/0096： .{加热;冷却(一般机器或发动机入F01P)}
- F04C15/06： .工作流体吸入或排出的装置,如入口或出口的结构特征
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Pump with a resilient seal | US13265510 | 2010-04-21 | US09175681B2 | 2015-11-03 | Richard Paul Hayes-Pankhurst; Peter William Ross |
| A pump comprises a housing, with an interior defining a rotor path, an inlet formed in the housing at a first position on said rotor path, an outlet formed in the housing at a second position on said rotor path spaced from said first position. A rotor is rotatable in the housing with a first surface that seals against the housing. A second surface is formed on said rotor circumferentially spaced from said first surface and forms a chamber that travels around said rotor path to convey fluid from the inlet to the outlet. A resilient seal formed with the housing is located on the rotor path to prevent fluid flow from said outlet to said inlet past the seal. A passage may be provided to supply fluid to an under surface of the seal at a pressure that acts to urge the seal against the rotor. | ||||||
| 162 | Rotation device including seal structure | US13698950 | 2011-05-20 | US08992194B2 | 2015-03-31 | Yuki Nakamura; Tomoaki Kawabata |
| A seal member is configured so that an annular rubber member is disposed in an annular storage chamber of a resin annular member. Thus, the rubber annular member is not directly in contact with a drive shaft, and the rubber annular member can be prevented from wearing or peeling without requiring a rotation stopping structure for the seal member. Furthermore, the seal member is provided with first and second communication mouths, so that a brake fluid pressure is applied to compartments obtained by dividing the annular storage chamber using the rubber annular member. Thus, the rubber annular member is pressed, and then is elastically deformed, and accordingly, the resin annular member is expanded by the elastic force. Thus, a self-sealing operation can be performed on the basis of a high pressing force. | ||||||
| 163 | COMPONENT HAVING REDUCED METAL ADHESION | US13702608 | 2011-06-09 | US20130089454A1 | 2013-04-11 | Gerold Stetina; Matthias Grafinger; Martin Reisner |
| The invention relates to an assembly (1) having at least two metallic components (2, 3) which are subject to sliding stress and each have a sliding surface and in operation slide against one another, wherein at least one of the components (2, 3) consists of a metallic sintered material having an iron-based matrix containing iron together with carbon and up to 10% by weight of at least one non-ferrous metal at least in the region of the sliding stress, where the carbon content is at least 1% by weight and not more than 10% by weight and at least part of the carbon is present in unbound particulate form in the matrix. | ||||||
| 164 | PUMP WITH A RESILIENT SEAL | US13265510 | 2010-04-21 | US20120034122A1 | 2012-02-09 | Richard Paul Hayes-Pankhurst; Peter William Ross |
| A pump comprises a housing, with an interior defining a rotor path, an inlet formed in the housing at a first position on said rotor path, an outlet formed in the housing at a second position on said rotor path spaced from said first position. A rotor is rotatable in the housing with a first surface that seals against the housing. A second surface is formed on said rotor circumferentially spaced from said first surface and forms a chamber that travels around said rotor path to convey fluid from the inlet to the outlet. A resilient seal formed with the housing is located on the rotor path to prevent fluid flow from said outlet to said inlet past the seal. A passage may be provided to supply fluid to an under surface of the seal at a pressure that acts to urge the seal against the rotor. | ||||||
| 165 | Control device for positive displacement pumps | US10203357 | 2001-01-30 | US07059838B2 | 2006-06-13 | Günter Draskovits; Gerhard Zimmermann |
| A control device for a positive displacement pump includes a throttle device and a flow control valve. The flow control valve includes a flow control piston and is configured to regulate an unrequired excess flow of the pump at an increased speed. The throttle device is configured to produce a speed-related pressure differential in a bore section, the pressure differential being responsible for the displacement of the flow control valve and the throttle device. The throttle device is arranged in the pressure outlet (bore section) of the pump and includes a regulating pin connected to the flow control piston, having a control contour configured so that a modifiable through cross-section is created in association with a throttle bore. The control pin has a wider section in an axial displacement area of the throttle device, the area not being involved in control of the volume flow, whereby a minimum obturating section arises in the displacement area. This may result in accelerated movement of the flow control piston, which may result in quicker reaction of the control mechanism, thereby preventing an overshoot and overincrease in the flow capacity. | ||||||
| 166 | Rotary vane pump with vane wear access port and method | US10315327 | 2002-12-10 | US20030124010A1 | 2003-07-03 | Timothy H. Henderson |
| A rotary vane pump, including a housing within which is rotatably mounted a rotor having a plurality of slots therein with a vane positioned for sliding movement within each of the slots. An access port is formed in the housing communicating with the rotor at a reference position in relation to the slots. The access port is sized to permit alignment of any one of the slots with the access port by rotating the rotor, maintaining the vane within the aligned one slot and at a datum within the slot, and permitting entry into the access port of an aligned slot of a stylus having a predetermined length in relation to the datum for determining the length of the vane. A determination of whether wear to the vane has met or exceeded a predetermined amount can be determined by reference to a portion of the stylus exterior to the access port. | ||||||
| 167 | Control device for positive displacement pumps | US10203357 | 2002-10-15 | US20030113216A1 | 2003-06-19 | Gunter Draskovits; Gerhard Zimmermann |
| A control device for a positive displacement pump includes a throttle device and a flow control valve. The flow control valve includes a flow control piston and is configured to regulate an unrequired excess flow of the pump at an increased speed. The throttle device is configured to produce a speed-related pressure differential in a bore section, the pressure differential being responsible for the displacement of the flow control valve and the throttle device. The throttle device is arranged in the pressure outlet (bore section) of the pump and includes a regulating pin connected to the flow control piston, having a control contour configured so that a modifiable through cross-section is created in association with a throttle bore. The control pin has a wider section in an axial displacement area of the throttle device, the area not being involved in control of the volume flow, whereby a minimum obturating section arises in the displacement area. This may result in accelerated movement of the flow control piston, which may result in quicker reaction of the control mechanism, thereby preventing an overshoot and overincrease in the flow capacity. | ||||||
| 168 | Progressing cavity pump system for transporting high-solids, high-viscosity, dewatered materials | US09653371 | 2000-09-01 | US06491501B1 | 2002-12-10 | Alan G. Wild; Charles L. Snyder; Todd E. Brown; Richard A. Sliwinski |
| A system and method for transporting high-viscosity, high-solids, dewatered materials essentially includes a progressing cavity pump system utilizing a twin-screw feeder with an extended tunnel section. The feeding of the material into an extended tunnel section of the twin screw feeder creates a positive pressure, which assists in feeding the product into the suction housing of the progressing cavity pump, and correspondingly, into the pumping elements. This increases volumetric (fill) efficiency of the progressing cavity pump, thereby allowing a smaller pump to be used. The suction housing of the progressing cavity pump includes an auger positioned therein that is directly coupled to, and preferably integral with, the progressing cavity rotor. The universal joint is moved from the position in front of the stator entrance to a point behind the auger and suction inlet opening to improve flow of material from the suction housing to the progressing cavity pump elements. The inlet conduit coupled to the transition housing is angled slightly towards the direction of flow to further improve the flow efficiency and increase the fill rate of the progressing cavity pump elements. The feeder mechanism of the present system is radially set apart from the progressing cavity elements, where the materials are transported from the extended tunnel section of the feeder to the suction housing of the progressing cavity pump by a transition conduit. In one embodiment, the feeder is positioned above the progressing cavity pumping elements providing a taller system but with a relatively small footprint. | ||||||
| 169 | Apparatus for indicating remaining life expectancy of a rotary sliding pump | US10121126 | 2002-04-11 | US20020110467A1 | 2002-08-15 | Timothy H. Henderson |
| The present invention is directed to an apparatus for determining vane wear in rotary sliding vane pumps that operate using slideable vanes, while the pump is in operation. The invention includes a structure that allows a predetermined amount of leakage from a pumping chamber after a predetermined amount of vane length is worn away. The leakage produces a decrease in pump efficiency that is indicated by an indicating device. The indicating device serves to warn that an amount of vane wear has occurred that indicates pump inspection is warranted. The invention also includes a view port formed in the pump housing to allow inspection of the vanes without having to disassemble the pump. | ||||||
| 170 | Vane pump | US09077822 | 1999-01-08 | US06234776B1 | 2001-05-22 | Tetsuji Hayashi; Kenichi Kuga |
| This invention relates to a vane pump having a cover of simple construction and which permits reduction of production costs. A groove-shaped low pressure port 6A and a branch groove 6 split into two are formed in the cover joined to a body. A pin extending by a predetermined amount from an end face of the body is implanted in a side plate. A throughhole through which the pin passes is formed in a cam ring, and a concave part 25 of predetermined depth for engaging with the end of the pin is formed in the cover. An escape hole 24 is also formed in the cover for housing the tip end of the drive shaft extending from the end face of the body. A shoulder part is formed on the inner circumference of a shaft hole in the body which engages or disengages with a step between the large diameter part and the small diameter part of the drive shaft. | ||||||
| 171 | Electrohydraulic device, particularly electrical fuel pump for motor vehicle | US987114 | 1992-12-04 | US5338163A | 1994-08-16 | Kurt Frank; Johann Attenni; Albert Schmidt; Max Weigl |
| An electrohydraulic device, particularly an electric fuel pump for motor vehicle comprises a housing, a hydraulic connecting pipe and at least one electrical connecting plug for hydraulic medium and current supply respectively, a hydraulic conduit and a current cable extending to the housing, and a plug head. The hydraulic conduit and the current cable are connected with the plug head. The plug head is fitted over the connecting pipe and the connecting plug so as to establish hydraulic and electrical connection between the hydraulic conduit and the connecting pipe on the one hand and the current cable and the connecting pipe on the other hand. | ||||||
| 172 | Gear metering pump for compounded elastomeric material | US682036 | 1991-04-08 | US5120206A | 1992-06-09 | Arthur W. Greenstreet; Joseph C. Norka |
| A gear metering pump for delivering precise amounts of a compounded elastomeric material into a die. The gear pump has a housing formed with a hollow interior chamber containing a pair of rotating meshing gears mounted on shafts, one of which is power driven, for passing controlled quantities of the compounded material out of the chamber and into the die. A side plate is removably mounted on the housing and encloses an open side of the chamber and is moved between open and closed positions by fluid pressure cylinders mounted on the housing to provide ready access into the chamber for cleanout. A first bearing assembly for the gear shafts is mounted on the removable side plate and retains the gears mounted thereon for removing the gears from within the chamber along with the side plate. Outlet openings are formed in the removable side plate and in an opposite fixed side plate adjacent the shafts and bearings, permitting small quantities of the compounded material to flow between the shafts and bearings and out of the openings for lubrication of the bearings. The drive shaft passes out of the housing through an enlarged opening and is free of any end seal with the housing to reduce heat buildup. | ||||||
| 173 | Filter attachment for gear pump | US505497 | 1990-04-06 | US5087179A | 1992-02-11 | Sachio Nyui; Tamotu Nakamura; Junzo Kawakami |
| A filter for filtering working oil to be introduced into a gear pump is detachably mounted on the gear pump. The gear pump has a recess defined in an outer circumferential surface thereof. The filter is held in place by a filter holder. The filter holder has locking fingers engageable in the recess. The filter holder is detachably mounted on the gear pump with the locking fingers engaging in the recess. | ||||||
| 174 | Readily-removable floating bushing pump construction | US756665 | 1985-07-19 | US4846641A | 1989-07-11 | Ferdinandus A. Pieters; Thomas B. Martin |
| A rotary pump has a block with inlet and outlet ducts and ports. A pump housing forming a pump cavity and accommodating working means of the pump, e.g., gears, is located on one side of the pump block, whereas drive means such as a magnetic coupling are placed on the other side of the block. In the case of a gear pump, the driving gear is connected to the drive magnet of the coupling through a drive shaft which passes through the axial bore in the block. The drive gear meshes with a driven gear which is mounted on a second shaft, also supported in bushings in the block. One set of ends of the shafts extends outside the pump housing and are inserted into bushings loosely fitted in recesses of a bearing support plate. This plate is attached to the block by removable screws extending through holes in the supporting plate and pump housing. The arrangement described makes it possible to replace worn parts of the pump, such as gears, shafts and bushings in a matter of minutes without the necessity of disconnecting the pump block and any piping or electrical connections to the motor. | ||||||
| 175 | Balanced vane type oil pumps | US553302 | 1983-11-18 | US4838767A | 1989-06-13 | Takeshi Ohe; Hiroshi Ohsaki |
| Inlet passages and two sets of discharge passages are communicated with a pair of pump chambrs formed in a pump cartridge in a pump body. A pair of spool valves respectively acting as a flow quantity control valve and a pressure sensitive type flow path switchng valve are formed in parallel in the pump body in directions perpendicular to the axis of the pump. | ||||||
| 176 | Deflecting insert for a rotary vane pump | US609290 | 1984-05-11 | US4575314A | 1986-03-11 | Heinz Teubler; Heinz W. Kruger; Rene Schulz |
| In a rotary vane pump having a normally vertical suction feed flow passage (17a, 17b) which opens tangentially into a horizontal, elbow-bent feed passage (18a, 18b) and a discharge passage (19a, 19b), the direction-changing portion is formed by a plug-like insert (51) which is pressed into a stepped bore (61). The insert (51) comprises erosion-resistant material. | ||||||
| 177 | Rotary vane pump with packing means for the housing components | US623542 | 1984-06-25 | US4514155A | 1985-04-30 | Hitoshi Ogawa |
| A pump device connected to an AC generator for a car includes shoulder portions formed on both side surfaces of a plate or the side surface of an end frame and a housing, and chamfered portions or grooves formed in the end frame and the housing or the plate at positions corresponding to the shoulder portions. Packings are placed in spaces formed by the plate and the end frame and the housing. | ||||||
| 178 | Hydraulic pump rotating group axial alignment structure | US271661 | 1981-06-08 | US4419058A | 1983-12-06 | Leonard N. Franklin, Jr.; Gary G. Hegler |
| A vane type hydraulic pump has a pressure plate, thrust plate, cam ring, rotor and vanes, which when assembled, are denoted as the pump rotating group. The thrust plate, pressure plate and cam ring are maintained in axial and angular alignment by a pair of dowel pins which extend between the plates and through the cam ring with a close fit relationship. The plates and cam ring are restrained from rotation by a dowel pin which extends between a close fit in the pump housing and a loose fit in the pressure plate. The rotating group is disposed in a cylindrical cavity in the pump housing which cavity has a diametral dimension cooperating with the outer diameter of the pressure plate and thrust plate to provide a sliding pilot fit at assembly thereby sharing the axial alignment constraint of the pair of dowel pins. | ||||||
| 179 | Pump and motor assembly for use in regulating a flow of fuel from a source of fuel to an operating chamber of an engine of a vehicle | US748061 | 1976-12-06 | US4207033A | 1980-06-10 | Gilbert H. Drutchas; Cass, Richard; David J. Suttkus |
| An improved pump and motor assembly is utilized to regulate a flow of fuel to an internal combustion engine. All of the fluid connections to the pump are connected with one end of the assembly. The pump and motor are both enclosed within a one-piece casing having a tubular side wall which is integrally formed with an end wall. The end section to which all of the fluid connections for the pump are made, is connected across the open end of the tubular side wall. To provide for the removal of vapor bubbles from the fuel, fuel supplied under pressure from the tank flows through an inlet cavity which circumscribes the pump and has an axial extent which is equal to the length of the pump. In addition, a screen at the inlet of the pump itself blocks the flow of vapor bubbles from the inlet cavity to the pump. The forces applied against opposite sides of the moving components of the pump by the inlet fluid are substantially balanced. Fluid pressure pulses in fuel discharged from the pump are dampened in an outlet cavity by a seal member which sealingly engages an outer cheek plate of the pump to separate the inlet and outlet cavities. A single spring element is utilized to perform the dual functions of pressing the seal member into engagement with the outer cheek plate of the pump and to press the outer cheek plate and cam ring against the inner cheek plate. | ||||||
| 180 | Utility pump | US32098573 | 1973-01-04 | US3829248A | 1974-08-13 | BRIGHT H; DAVIS L; STANASZEK F |
| A self-priming pump assembly including motor means with a rotatable drive shaft extending therefrom and pump mounting means secured to the motor means with the drive shaft extending therethrough. A pump unit is demountably secured to the pump mounting means and includes an interchangeable pump cam with a pair of identical interchangeable pump cam with a pair of identical interchangeable wear plates disposed at each end thereof within a pump housing. A flexible vane impeller is secured to the drive shaft within the pump cam and between the wear plates. The pump housing has inlet and outlet fittings integrally formed therewith. The pump assembly is conformed such that it may be completely disassembled while the pump housing is left in assembled relation with the inlet and outlet fittings thereof connected to external inlet and outlet conduits.
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