Oscillating Pumping Member Patents (Class 417/481)
  • Patent number: 10883498
    Abstract: Variable volume chamber devices are disclosed. The chambers may be defined by the space between two complementary rotors. The volume of the chambers may vary as a function of the variation of relative rotational speeds of the two rotors.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: January 5, 2021
    Inventors: Elario Dino Dalmas, II, Roy Albert Blom, Brett J. Leathers
  • Patent number: 10801489
    Abstract: A gas transportation device includes a gas outlet cover, at least one flow-guiding pedestal, a primary gas pump, a secondary gas pump and an adhesive film. The gas outlet cover includes a gas outlet nozzle and a gas outlet cavity. Each flow-guiding pedestal includes a main plate, a protruding frame and a chamber frame. The main plate includes a recess and a communicating aperture. The primary gas pump is disposed in the protruding frame, and the secondary gas pump is disposed in the chamber frame. The adhesive film has a hollow structure, is disposed between the primary gas pump and the flow-guiding pedestal and defines a convergence chamber. Consequently, the gas is introduced into the recess, transported to the primary gas pump through the communicating apertures and the convergence chamber, transported to the gas outlet cavity via the primary gas pump, and finally discharged out from the gas outlet nozzle.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: October 13, 2020
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Jia-Yu Liao, Hung-Hsin Liao, Shou-Hung Chen, Chi-Feng Huang, Chang-Yen Tsai
  • Patent number: 10738773
    Abstract: A piezoelectric blower includes a first valve, a first housing, a vibrating plate, a piezoelectric element, a second housing, and a second valve. The first housing forms, together with the vibrating plate, a first blower chamber. A first top plate portion includes a first vent hole that allows an inside of the first blower chamber to communicate with an outside of the first blower chamber. The second housing forms, together with an actuator, a second blower chamber. A second top plate portion includes a second vent hole that allows an inside of the second blower chamber to communicate with an outside of the second blower chamber. The vibrating plate includes an opening portion and a third vent hole, the opening portion allowing an outer periphery of the first blower chamber and an outer periphery of the second blower chamber to communicate with each other.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: August 11, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Nobuhira Tanaka, Kiyoshi Kurihara
  • Patent number: 9732771
    Abstract: A hydraulic rotary actuator including a stator housing having a through bore to position a rotor assembly. A rotor assembly includes an output shaft and at least a first rotary piston member disposed radially about the output shaft. The rotary piston member includes an vane element. A continuous seal is disposed on peripheral longitudinal faces and lateral end faces of the rotary piston element. The bore through the stator housing includes an interior cavity with surfaces adapted to receive the rotor assembly and contact the continuous seal. With rotation fluid ports blocked, the housing cavity is sealed with the continuous piston seal for hydraulic blocking, preventing actuator displacement by external forces. A method of operation and method of assembly is disclosed.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: August 15, 2017
    Assignee: Woodward, Inc.
    Inventors: Rhett S. Henrickson, Robert P. O'Hara
  • Patent number: 8974200
    Abstract: An apparatus and method are disclosed for inducing fluid flow. A fluid flow apparatus includes a directional membrane, a directional flow mechanism, and an oscillation module. The directional membrane allows a fluid to pass through the directional membrane in a first direction and resists fluid passing through the directional membrane in a second direction, the first direction substantially opposite the second direction. The directional flow mechanism allows a fluid to flow in a third direction and resists fluid flow in a fourth direction, the third direction substantially opposite the fourth direction. The oscillation module induces an oscillation in the directional membrane, wherein the oscillation of the directional membrane induces a flow of the fluid through the directional membrane in the first direction.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: March 10, 2015
    Assignee: International Business Machines Corporation
    Inventors: Johan Junior Chan, Yiduo Li, Wei Chih Pan, Andrew Yong Liang Soon Ng, James Sai Cheong Tam
  • Publication number: 20140234145
    Abstract: The present invention refers to the arrangement of components comprised in a linear compressor (1), which is fundamentally composed by at least one resonant oscillating mechanism comprising at least one resonant spring (2) which defines at least one neutral point (21), at least one magnet (3) and at least one piston (4); at least one intermediate element (5) which defines an axially flexible surface (51); at least one flat spring (6) which defines at least one binding structure (62); at least one shell (7); and at least one attaching means (8).
    Type: Application
    Filed: June 21, 2012
    Publication date: August 21, 2014
    Applicant: WHIRLPOOL S.A.
    Inventors: Alisson Luiz Roman, Celso Kenzo Takemori, Paulo Rogerio Carrara Couto, Wilfred Roettger
  • Publication number: 20130236343
    Abstract: The invention relates to a compressor comprising a rotatable portion where the active volume is divided by transverse wings (4a-b) and a rotatable ring element (2) with its normal at an angle to the rotation axis of the transverse wings. In any of their embodiments the sealing wings are attached to sealing holder taps (16bd1-2, 16ac1-2) that pass through driving slits (11a1-2, 11b1-2). The driving slits extend essentially parallel to the rotation axis of the transverse wings. Steering and driving the sealing wings in this fashion using the driving slits, aligns the sealing wings against the transverse wings, restricting wear of the sealing wings and decreasing friction. In one embodiment the sealing holder taps are provided with sliders (17, 17a1-2, 17b1-2, 17c1-2, 17c1-2), guiding and further reducing wear of the sealing wings and decreasing friction, by means of guides (22a-d).
    Type: Application
    Filed: December 28, 2011
    Publication date: September 12, 2013
    Applicant: Manomeka 4B
    Inventor: Niels Lennart Ohlsen
  • Publication number: 20130017109
    Abstract: The present invention relates to an apparatus which may be in the form of a pump or compressor and which can function to compress or accelerate a fluid such as air, gas, gaseous mixtures and/or liquid. In particular, the invention provides a mechanism in which fluid can be admitted and then discharged continuously from each of the radial compartments that make up the compressor chamber.
    Type: Application
    Filed: November 12, 2010
    Publication date: January 17, 2013
    Applicant: EXODUS R & D PTE LTD
    Inventor: George Flenche
  • Patent number: 8206137
    Abstract: There is provided a cylinder apparatus consisting of a cylinder, a piston performing reciprocating motion between a top dead point and a bottom dead point with oscillatory movement in the cylinder, wherein the cylinder has an oscillatory distance between the top dead point and the bottom dead point, which is shorter than the oscillatory distance at the top and bottom dead points.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: June 26, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Susumu Sakamoto, Daisuke Takahashi, Junichi Nagasawa
  • Publication number: 20120107146
    Abstract: A pumping device includes a barrel, a top cover mounted on an open top of the barrel, a cylinder mounted in the barrel and connected to the top cover, a piston movably mounted in the cylinder, a plurality of check valves mounted on the piston, an operation unit mounted on the top cover and connected with the piston, a connecting unit mounted in the barrel and connected between the barrel and the cylinder, and a pressure adjusting unit connected between the barrel and the top cover. Thus, when the air pressure in the receiving chamber of the barrel reaches a predetermined value, the pressure adjusting unit provides a pressure release function to partially release the air pressure in the receiving chamber of the barrel so as to ensure a safe operation of the pumping device.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 3, 2012
    Inventor: Mei-Chin Hsu
  • Publication number: 20110081267
    Abstract: A fluid pump comprising a chamber which, in use, contains a fluid to be pumped, the chamber including a main cavity having a substantially cylindrical shape bounded by first and second end walls and a side wall and a secondary cavity extending radially outwards of the main cavity, one or more actuators which, in use, cause oscillatory motion of the first end wall in a direction substantially perpendicular to the plane of the first end wall, and whereby, in use, the axial oscillations of the end walls drive radial oscillations of the fluid pressure in the main cavity, and wherein the secondary cavity spaces the side wall from the first end wall such that the first end wall can move relative to the side wall when the actuator is activated.
    Type: Application
    Filed: March 13, 2009
    Publication date: April 7, 2011
    Inventors: James Edward McCrone, David Mark Blakey
  • Publication number: 20110038744
    Abstract: The new system is characterized by the fact that the displaced volume and the relative position of the intake, exhaust ports (31,30), sparkplugs, etc. in relation to the displacers (1,1? and 3,3), may be varied by modifying the angular and linear distance between the geometric axes of the double crankshaft (11), allowing this oscillating movement of varying speed, and the geometric axis of the arms (6,7) attached to the rotor with their respective displacers. By placing the double crankshaft (11) or the positive displacement machine on a chute (13) or sliding axes and change by means of a spindle (14) the distances between the geometrical axes, modify also the level of maximum and minimum distance among the displacer's. By modifying the angular distance between the fixed parts of the chamber and the double crankshaft the position of the intake and exhaust ports is also changed, this alteration can be operated with the system detained or in movement in a manual form or motorized and computerized form.
    Type: Application
    Filed: April 24, 2009
    Publication date: February 17, 2011
    Inventor: Hugo Julio Kopelowicz
  • Publication number: 20100196181
    Abstract: A pump that enhances the flow of liquids in a system according to the movement of one or more generally planar oscillating members within a fluid flow chamber, as directed by rotation of a simple crank member.
    Type: Application
    Filed: February 2, 2009
    Publication date: August 5, 2010
    Inventor: Alizarov Zhobbar
  • Publication number: 20090148320
    Abstract: A fluid energy transfer device, including a chamber for receiving a fluid, at least a portion of the chamber comprising a movable portion relative to another portion of the chamber, the movable portion being adapted to change the volume of the chamber from a first volume to a second volume by movement of the movable portion. The device further includes an actuator attached to the movable portion, wherein the displacements of the movable portion can be larger than the displacement of the actuator.
    Type: Application
    Filed: March 7, 2007
    Publication date: June 11, 2009
    Inventor: Timothy S. Lucas
  • Publication number: 20090081061
    Abstract: The present invention is directed to a peripherally pivoted oscillating vane machine (OVM). The OVM has been optimized for performance and efficiency. This has been accomplished by reducing loads on the drive mechanism and by employing de-phased motion of the peripherally pivoted vanes in conjunction with improved porting configurations as well as valve actuation and manufacture.
    Type: Application
    Filed: September 22, 2008
    Publication date: March 26, 2009
    Inventors: STEPHEN M. CHOMYSZAK, JEDD MARTIN, JAMES T. FERENTINOS, HAI-PING MA, FRANCISCO LEON
  • Publication number: 20080152521
    Abstract: An air pump positioned within a hollow space in an aerodynamic structure for controlling the flow over an aerodynamic surface thereof, includes a movable member linearly displaced by a very low friction piston mechanism and a compression chamber open to the exterior of the aerodynamic surface through an orifice. Reciprocal displacement of the very low friction movable member changes the volume of the compression chamber to alternately expel fluid (e.g., air) from and pull fluid into the compression chamber through the orifice. The movable member includes a piston oscillating within a piston housing each having an ultra-low friction coating for improved thermal performance and reduced maintenance. Fluid intake to the compression chamber may be increased through the use of a one-way valve located either in the aerodynamic surface, or in the piston. Multiple flapper valves may surround the orifice in the aerodynamic surface for increased fluid control.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 26, 2008
    Inventor: Terrence S. Birchette
  • Patent number: 7374409
    Abstract: A suction passage (1) and a discharge passage (2) for a to-be-transferred fluid are disposed in a pump body (3). A bottomed cylindrical bellows (6) is integrally coupled to the axial rear side of the pump body to form a closed space (7). The suction passage (1) has an upstream portion (1A) having a larger diameter and a predetermined passage cross section area, and downstream portions (1B) which are formed by branching the upstream portion into a bifurcated or Y-shape while reducing the passage cross section area. Two first small check valves (15) of the spring type in each of which the pressure receiving area is reduced in accordance with the reduced passage cross section areas of the smaller-diameter downstream portions (1B) are attached respectively to outlet portions of the smaller-diameter down-stream portions (1B) so as to be arranged in parallel. The outlets of the first check valves (15) are opened in the closed space (7).
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: May 20, 2008
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventor: Hitoshi Kawamura
  • Patent number: 7344363
    Abstract: A liquid cooling system utilizing minimal size and volume enclosures, air pockets, compressible objects, and flexible objects is provided to protect against expansion of water-based solutions when frozen. In such a system, pipes, pumps, and heat exchangers are designed to prevent cracking of their enclosures and chambers. Also described are methods of preventing cracking in a liquid cooling system. In all these cases, the system must be designed to tolerate expansion when water is frozen.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: March 18, 2008
    Assignee: Cooligy Inc.
    Inventors: Mark Munch, Kenneth Goodson, David Corbin, Shulin Zeng, Thomas W. Kenny, James Gill Shook
  • Patent number: 7278549
    Abstract: A liquid cooling system utilizing minimal size and volume enclosures, air pockets, compressible objects, and flexible objects is provided to protect against expansion of water-based solutions when frozen. In such a system, pipes, pumps, and heat exchangers are designed to prevent cracking of their enclosures and chambers. Also described are methods of preventing cracking in a liquid cooling system. In all these cases, the system must be designed to tolerate expansion when water is frozen.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: October 9, 2007
    Assignee: Cooligy Inc.
    Inventors: Mark Munch, Kenneth Goodson, David Corbin, Shulin Zeng, Thomas W. Kenny, James Gill Shook
  • Patent number: 6732647
    Abstract: An inking pump for an offset printing press has a cylinder defining a bore in which a plunger is received for both rotation and linear reciprocation, creating a first and a second opposed fluid chamber. The cylinder has formed therein a first and a second suction port with a spacing therebetween axially of the bore, and, angularly spaced 180 degrees from the suction ports, a first and a second discharge port with an axial spacing therebetween. The plunger has formed in its surface a first recess for placing the first fluid chamber in successive communication with the first suction port and the first discharge port during each complete revolution of the plunger, and a second recess for placing the second fluid chamber in successive communication with the second suction port and the second discharge port during each complete revolution of the plunger.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: May 11, 2004
    Assignee: Kabushiki Kaisha Tokyo Kikai Seisakusho
    Inventors: Yoshinori Uera, Keita Matsuzaka
  • Patent number: 6623255
    Abstract: A fluid transfer apparatus utilizes a linear motor including a movable element in which magnetic poles are provided at a predetermined pitch along a moving direction, magnetic pole teeth provided in upper and lower portions of the movable element at a predetermined pitch along a moving direction of the movable element and so as to oppose to each other via the movable element, and a coil, wherein adjacent magnetic pole teeth and opposing magnetic pole teeth among the magnetic pole teeth form different poles.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: September 23, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Kim Houng Joong, Kohji Maki, Taizou Miyazaki, Tomoyuki Hanyu, Ryouichi Naganuma
  • Patent number: 6511305
    Abstract: A biphase conveyor of a mixture of fine solid components with pasty and liquid components based on the use of rotational and periodic inertial forces is described. In accordance with the present invention the conveyor comprises a mechanism which impresses on the identical rotor pair R1 and R2 a periodic oscillatory motion with identical frequency and with phase other than 90°. The oscillation mechanism can consist indifferently of a connecting rod & crank system or a rotating bearing with eccentric axis between two guides fastened to the rotor. On R1 is rigidly fastened a biphase circuit whose inlet E01 is connected with the feeder of the materials to be conveyed and the outlet U01 with the inlet E02 of an identical biphase circuit fastened on R2 whose outlet U02 is connected with the user. All this develops a resultant of continuous inertial forces with constant direction from E01 to U02 which causes the flow of the materials making up the mixture.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: January 28, 2003
    Inventor: Gino Franch
  • Publication number: 20020159901
    Abstract: The parts for implementing the invention of the pump with high delivery and low head are illustrated in FIG. 1/10 which shows a tubular circuit bent in accordance with a circumference occupied by way of example by four 2-phase circuits fastened rigidly to a rotor. Each 2-phase circuit consists of a counterclockwise and a clockwise circuit whose direction is defined by two one-way valves each arranged at the beginning of the associated circuit. After the pump inlet the liquid is distributed through the inlets of the 2-phase circuits to the circuits Ci e Ci′. The forces of inertia stressing the liquid mass mc=m0/Nc of each circuit (where mc is the total mass relative to the circumference and Nc is the number of circuits into which it is divided) are proportionate to the same mass mc. Accordingly the acceleration of mc and the corresponding mean velocity Vc are independent of mc.
    Type: Application
    Filed: February 26, 2001
    Publication date: October 31, 2002
    Inventor: Gino Franch
  • Publication number: 20020134343
    Abstract: The engine comprises four open-ended curved cylinders (10) disposed in torroidal arrangement with respect to a central pivot point (11). Two piston arms (12) are pivoted about the point (11) and carry at their ends four pistons (13). Each piston (13) has two faces so mounted to the piston arm (12) as to face tangentially one away from the other for alternate engagement with adjacent ends of two of the cylinders (10).
    Type: Application
    Filed: January 4, 2002
    Publication date: September 26, 2002
    Inventor: Brian Parker
  • Patent number: 6357397
    Abstract: An axial bevel gear generated control motion is used to control an accelerating-decelerating vane motion in a cylindrical central axis main pressure chamber using a limited angle differential gear whose reversing gear is receiving an axial crank controlled motion from an orbiting bevel gear or in a modified version from an oscillation controlling barrel cam. Same bevel gear crank generated axial motion is also used to provide an axial piston motion in cylinders with one or more pistons which can be in a stationary or rotating cylinder housing. In all the different models a valveless port communication with a radial or axial flow distribution control is used for a pressurized fluid flow which is suited to external pressure or internal combustion engines where the energy conversion is from a fluid or combustion pressure to a powered output shaft rotation or in a reverse energy conversion mode, the central shaft is functioning as a power input shaft for pumping or gas compressor applications.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: March 19, 2002
    Inventors: Leo Kull, Raivo Leo Kull
  • Patent number: 6354820
    Abstract: For the purpose of providing a thin pump designed to decrease the number of parts, the pump is provided with a rectangular parallelepiped cylinder (3) and a piston located inside of the cylinder, wherein the piston (4) reciprocates and oscillates in the cylinder (3) to vary capacity of the pump chamber (12) and to make the intake port (5) and the outlet port (6) open alternately, so that fluid is sucked from the intake port (5) into the pump chamber (12), compressed and discharged from the outlet port (6).
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: March 12, 2002
    Inventor: Jun Iijima
  • Patent number: 6227152
    Abstract: There is described an internal combustion engine comprising at least one cylinder and a crankcase (5), which together with the cylinder forms a common, circular cylindrical tubular body (1), and comprising an oscillating piston (7) rotatably mounted about the cylinder axis and separating a cylinder space (4) defined by radial walls (3) from the crankcase (5), which oscillating piston is in drive connection with a crankshaft (16) parallel to the cylinder axis via a connecting link guide (17) for at least one crank pin (18) of the crankshaft (16), which is provided on the crankcase side of the oscillating piston (7). To create advantageous constructional conditions, it is proposed that the crank pin (18) is supported on the connecting link guide (17) via a roller (19), and that the tubular body (1) forming the cylinder and the crankcase (5) is thermally insulated to the outside.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: May 8, 2001
    Inventor: Walter Freller
  • Patent number: 6050790
    Abstract: An electric waving fan includes a single air moving fan vane element, a motor for generating power, a transmission apparatus for converting the power to motion, and a power output assembly for moving the single fan vane element simultaneously in two directions such that the fan vane element moves with a waving motion. The fan further includes a base and a wrist assembly that can be moved in two directions relative to the base which can be mounted on a wall, on the floor or desk, or hang from the ceiling.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: April 18, 2000
    Inventor: Qian-Shan Chen
  • Patent number: 5961302
    Abstract: A liquid-sealed vane oscillator includes a housing defining a cavity corresponding to part of a virtual annulus centered around, and extending at least 180.degree. about, an axis of rotation and delimited by first and second ends. A vane is mounted rotatably within the cavity. The vane includes a first seal and a second seal carried with the vane and deployed so as to subdivide the cavity into a first chamber of variable volume between the first end and the first seal, a second chamber of variable volume between the second end and the second seal, and an intermediate volume between the first seal and the second seal. At least one port is provided in fluid communication with each of the first and second chambers. The oscillator also has an axial shaft, penetrating and extending from the cavity, which is mechanically coupled to the vane so as to allow exchange of mechanical power with an external device.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: October 5, 1999
    Assignee: Isocomp Ltd.
    Inventor: Leif Blumenau
  • Patent number: 5501182
    Abstract: A tabulated kinematic control theory provides a foundation for a variety of peristaltic motion control versions where a control stator establishes a reference line for a peristaltic control wave or path in few different ways for the purpose of making a control point on a differential linkage or gear to follow this control path which in turn is creating an alternating harmonic-motion-like accelerating and decelerating rotary motion to a pair of concentric rotor shafts which are attached to vane carriers with one or more vanes each.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: March 26, 1996
    Inventors: Leo Kull, Raivo L. Kull
  • Patent number: 5415078
    Abstract: This invention relates to reciprocating piston machines which use the crankcase for pumping air or charge. The connecting rod with extension partitions the interior of the crankcase including the lower cylinder into two varying volumes during a portion of each revolution of the crankshaft. A unique feature is that the designer can choose the capacity of the crankcase pump independent of other significant design parameters such as the ratio length of connecting rod/stroke and the ratio stroke/bore.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: May 16, 1995
    Inventor: John H. Beveridge
  • Patent number: 5305716
    Abstract: Four pistons (20) are arranged offset from one another at angular spacings of 90.degree. in a housing (10) having a cylindrical inner wall, and they are each supported to be pivotable about a piston axis (B) which is parallel to the housing axis (A). The pistons (20) are designed as two-armed levers whose arms are in rolling engagement with a respective adjacent piston arm so that four housing chambers (18) are defined in the housing (10) by a pair each of piston arms in rolling engagement with each other. Either a fuel-air mixture or air into which fuel is injected is processed in the housing chambers (18) according to the Otto or Diesel four stroke cycle, with the pistons (20) rocking back and forth like a balance. These rocking motions are converted into rotation of a central shaft (30) by cam followers (38) which roll off running surfaces (40) formed on the pistons (20).
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: April 26, 1994
    Inventor: Herbert Huttlin
  • Patent number: 5277558
    Abstract: A conveyance pump having a substantially constant output pressure. The pump includes a chamber having a circular periphery. A vane is mounted within the pump chamber for oscillation through an arc and a valve chamber includes opening to each boundary of this arc, and with input and output conduits. Within the valve chamber is a valve which may move between two positions, allowing communication between alternate pairs of openings and conduits. An hydraulic motor is connected to the vane to cause its oscillation between the limit positions, and a motor rotates the valve between its positions. In operation the vane will rotate, drawing material from the input opening into the pump chamber behind the advancing vane, and pushing, and thus pressurizing, the material out of the pump chamber in front of the advancing vane and out of the output opening. Reversing the vane continues this process.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: January 11, 1994
    Inventor: Marshall Long
  • Patent number: 5017106
    Abstract: In pumps for conveying gases and providing a differential pressure between the pump inlet and outlet, a pumping space within the pump is hermetically sealed from the pump drive unit. No oil or grease-lubricated parts are located within the pumping space. Accordingly, the pump can be characterized as completely dry running. The hermetical seal is provided by a hollow or tubular member (5) capable of torsion movement and located between a shaft (1) and a container (6). A drive unit (7) connected to the shaft provides it with an oscillating rotary motion transmitted through the shaft to the container (6). Segmented pistons (8a, 8b) are located on the container and oscillate in the pumping space between stationary parts (10a, 10b) and afford the pumping effect.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: May 21, 1991
    Assignee: Arthur Pfeiffer Vakuumtechnik Wetzlar GmbH
    Inventor: Kurt Holss
  • Patent number: 4966102
    Abstract: The preferred embodiment of the present invention is in the form of a rotary compression/combustion assembly (10) adaptable to be utilized as an internal combustion engine, a fluid pump or as fluid compressor device. The assembly (10) operates by the interaction of a variety of subassemblies, and is formed to be generally symmetrical about a central axis (11). A chamber subassembly (12), of cylindrical shape, is divided into five subchambers (54-62) by four vane subassmeblies (14). Each vane member (44) pivots about its own pivot axis to create a variable volume combustion/compression chamber (54-60) between the vane member (44) and the frame side wall (32) of the cylinder frame (24). A rotor subassembly (16), including a drive shaft (86) and a rotor blade (88) interacts with vane members (44) with the position of the rotor blade (88) determining, or being determined by, depending upon mode of use, the volume of each subchamber (54-60).
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: October 30, 1990
    Inventor: Joy P. Mulakken
  • Patent number: 4861236
    Abstract: This invention comprises a birotational pump for the movement of air fluid through a conventional pumping mechanism. It is comprised of cylindrical piston housing, a pump shaft running through the piston housing, a piston linkage assembly secured to the pump shaft, a pair of valve plates which cover the ends of the piston housing and a cylindrical pump housing surrounding the piston housing to allow for the free movement of the piston and piston linkage. This invention will permit the free flow of fluid or air through the piston housing by creating a suction chamber in the piston housing. The fluid enters the valve plates which contain openings which line up with openings in the piston housing. As the shaft rotates the openings on the first end of the piston housing cease to line up with openings in the piston housing and openings in the second end line up to expel the fluid contained within the chamber of the piston housing cirutier of rotation of shaft can be changed.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: August 29, 1989
    Inventors: Ryon Kustes, Alan M. Kustes
  • Patent number: 4540343
    Abstract: A spherical gear pump comprises a housing with a first longitudinal axis, a spherical seat, an inlet and outlet adjacent the seat, inlet and outlet passages communicating with the inlet and outlet and adapted for connection to a source of liquid and a liquid load. A hemispherical gear is rotatively mounted within the seat and includes a plurality of peripherally spaced radial gear teeth and a drive shaft for rotation about the first axis. A hemispherical cam is adjustably positioned within the spherical seat having an arc less than 180.degree., and radial cam surfaces facing the spherical gear. A plurality of separate symmetrical radial gear teeth are pivotally mounted within and between the teeth of the spherical gear with each separate gear tooth having a radial top wall centrifugally biased against the cam surfaces on rotation of the spherical gear and a bottom wall adapted for pivotal movements within planes passing through the first axis on rotation of the separate gear teeth over the cam surfaces.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: September 10, 1985
    Assignee: International Hydraulic Systems, Inc.
    Inventor: Gerard T. Perkins
  • Patent number: 4492150
    Abstract: A rotary fluid pressure actuator device includes a housing comprised of a pair of housing members interconnected together for relative movement therebetween. A vane rotor assembly is positioned in the housing and is rotationally reciprocated in response to the direction of flow of fluid to and from the interior of the housing members. The housing members are provided with internal stops which are adjustable with respect to each other to permit the rotational stroke of the vane rotor assembly to be variously adjusted. Rotary movement of the vane rotor assembly is transmitted directly or through a shaft to another device for actuation thereof.
    Type: Grant
    Filed: July 1, 1983
    Date of Patent: January 8, 1985
    Inventor: Harlan W. Yates
  • Patent number: 4310930
    Abstract: A rigid-vane artificial heart pump includes a vane shaft which extends from the gear box into the blood pumping chamber and a torsion seal for hermetically sealing the gear box from the pumping chamber so as to prevent contamination of blood. Check valves are provided to control the blood flow direction and to determine the pump's mode of operation.
    Type: Grant
    Filed: November 28, 1979
    Date of Patent: January 19, 1982
    Assignee: U.S. Philips Corporation
    Inventor: Michael P. Goldowsky
  • Patent number: 4272229
    Abstract: A pivotal piston machine or compressor including a disc-like pivotal piston oscillating on a bearing axis, such oscillatory movement being effected by engagement of a roller-type cam follower of a crank arm driven by a crankshaft, with cam surfaces formed on the pivotal piston, and angled member for limiting the oscillating movement at opposite ends of the pivotal stroke of the piston. The angled member serves as a separating wall between two compression chambers and a delivery chamber. A pair of pivotal pistons may be arranged adjacent each other to utilize a common air intake and provide a compound piston machine.
    Type: Grant
    Filed: November 30, 1978
    Date of Patent: June 9, 1981
    Assignee: WABCO Westinghouse GmbH
    Inventor: Wilhelm Pape
  • Patent number: 4257752
    Abstract: A rotary piston machine is shown that is operable with a compressible fluid; such as a rotary pump, compressor or engine construction. There is a housing having an inner and an outer ring member that are rotatably mounted on a common axis. The outer ring has at least two diametrically opposed inwardly directed segmental pistons. The inner ring has at least two diametrically opposed outwardly directed segmental pistons so as to define working chambers therebetween. An oscillating coupling means is positioned within the inner ring and flexibly joined to both ring members as well as rotating around a fixed offset crankpin to cause the inner and outer pistons to change position with relation to each other as the two ring members revolve around their common axis so as to create compression and expansion strokes.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: March 24, 1981
    Inventor: Raymond M. Fogarty
  • Patent number: 4193743
    Abstract: A piston pump for the transport of viscous materials and, in particular, concrete, includes a housing having defined therein an annular-shaped working space, a piston slidably mounted within the annular-shaped working space for oscillatory movement, and a pressure conduit and a suction conduit, each of which is communicative with the working space. The pump also includes control means having a member which is disposed in the annular-shaped working space for connecting the portion of the working space, which lies in front of the moving piston, to the pressure conduit and for simultaneously connecting the portion of the working space which lies back of the moving piston, to the suction conduit. In addition, the pump includes means for reversibly driving the piston so that it moves in an oscillatory manner in the annular working space, reversing its direction when it nears the member of the control means.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: March 18, 1980
    Assignee: Maschinenfabrik Walter Scheele KG
    Inventor: Heinz Bille
  • Patent number: 4131394
    Abstract: A method and a device for transport of manure under pressure through a pipe, including a mainly cylindrical housing with a piston member having a circle segment cross-section, said piston member being arranged to perform a rotary reciprocal movement in forward and reverse direction and to move manure from an inlet to an outlet communicating with a transport pipe, both sides of the piston member acting as pressure surfaces and utilized alternately depending on direction of rotation, said pressure surfaces interworking with a disc shaped valve member extending tangentially from the axis of rotation, arranged to perform a pendular movement and alternately take up contact with one of two opposed edge portions in the outlet.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: December 26, 1978
    Inventor: Bror A. Sjoblom
  • Patent number: 4106441
    Abstract: An internal combustion engine wherein each piston is relatively flat and is journalled to oscillate in a cavity defined by a sector of a cylinder. Thus, the piston forms two work chambers, one on each side of the piston, and each work chamber is equipped with appropriately timed intake and exhaust valves and one or more spark plugs.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: August 15, 1978
    Inventor: Thomas W. Anderson
  • Patent number: 4099448
    Abstract: An oscillating engine having synchronized oppositely-rotating vaned rotors in adjacent arcuate chambers. Intake and exhaust openings for each chamber are located adjacent to each other near at least one of the extreme positions of oscillation of each respective rotor. A rotary valve member positioned adjacent both to the intake opening and the exhaust opening of each chamber is actuated intermittently by a chain and sprocket drive in timed relation with the rotor oscillation between positions where the valve alternately closes each intake and exhaust opening to positions where the valve alternately partially opens each intake and exhaust opening.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: July 11, 1978
    Inventor: Gerald H. Young
  • Patent number: 4027475
    Abstract: The disclosure describes a drive system including an engine with a rotor which has oscillatory motion. The engine may be of either an internal or external combustion type. The drive system further includes a conversion device coupled to the engine rotor and adapted to convert the oscillatory motion of the engine rotor to unidirectional energy. The power output of the system may be controlled by controlling the speed and length of stroke of the engine.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: June 7, 1977
    Assignee: Advanced Power Systems
    Inventor: Lawrence R. Folsom
  • Patent number: 4027576
    Abstract: A pump or motor having a cylindrical housing member and a shaft member extending coaxially therethrough. The shaft member carries shaft vanes which project radially from the shaft member into close proximity with an inner cylindrical surface of the cylindrical housing member while the cylindrical housing member carries cylinder vanes which are fixed to the cylinder housing member and project therefrom radially toward and into close proximity with the shaft member. The ends of the shaft vanes are fixed with a pair of circular flanges which have outer peripheral edges next to the inner surface of the cylindrical member, these flanges extending across the opposed ends of the cylinder vanes. Axially extending sealing members extend along the outer edges of the shaft vanes between the latter and the inner surface of the cylinder member while annular sealing members extend along the peripheral edges of the flanges engaging the latter and the inner surface of the cylinder member.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: June 7, 1977
    Assignee: Kitazawa Shoji Kabushiki Kaisha
    Inventor: Chifuru Nomura