Motor Driven Patents (Class 417/321)
  • Patent number: 11661944
    Abstract: An electric compressor includes a compression portion, an electric motor, a drive circuit that has a circuit board on which electronic components are mounted, a housing, and a resin member. At least one of the electronic components is held by the resin member with the resin member sandwiched between the at least one of the electronic component and the circuit board. The electronic compressor includes a first metal member that is in contact with the at least one of the electronic components, and thermally connected to the housing, a second metal member that is disposed in the resin member, and a bolt by which the first metal member and the second metal member are fastened with each other.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: May 30, 2023
    Inventors: Motonobu Funato, Mikio Yoshida, Kenji Hayakawa, Yusuke Kinoshita
  • Patent number: 11497149
    Abstract: A display device includes a first heat dissipation member disposed on a display panel, and an air generator disposed on the first heat dissipation member, wherein the air generator includes an air blower, and an air flow path disposed at a side of the air blower and extending in a first direction. The air blower includes a body defining an inner space of the air blower, a first diaphragm and a second diaphragm disposed in the inner space of the body and facing each other, a first magnet disposed on a surface of the first diaphragm, and a second magnet disposed on a surface of the second diaphragm, and an air discharge hole of the body disposed between the first diaphragm and the second diaphragm, the air discharge hole opened toward the air path, and at least one of the first magnet and the second magnet is an electromagnet.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: November 8, 2022
    Inventors: Dae Hwan Jang, Yi Joon Ahn, Seok Hyun Nam, Haeng Won Park
  • Patent number: 11384768
    Abstract: A device for centrifugal compression of a working gas comprising a plurality of centrifugal compressors forming a plurality of compression stages and a plurality of drive motors for driving the compressors, the device comprising a gas circuit comprising a first pipe for supplying gas to be compressed into the first compressor, the gas circuit comprising a second pipe for discharging the gas compressed therein, the second pipe being connected to an inlet of a second compressor in order to carry out a second compression, the gas circuit comprising a third, cooling, pipe for transferring a fraction of the gas compressed in said compressor into said at least one first motor in order to limit heating thereof, the gas circuit comprising a fourth pipe for recovering the gas that has circulated in the first motor and a downstream end connected to an inlet of a second motor for transferring the gas into same in order to limit the heating of second motor.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: July 12, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Fabien Durand
  • Patent number: 11373747
    Abstract: A peristaltic pump is disclosed that includes a plunger, a spring, an actuator, a position sensor, and a processor. The plunger actuates toward and away from a tube. The spring biases the plunger toward the tube. The actuator actuates the plunger away from the tube and mechanically engages and disengages from the plunger. The position sensor senses a position of the plunger. The processor receives the sensed position of the plunger and estimates fluid flow within the tube using a first position of the plunger when the actuator is engaged with the plunger and a second position of the plunger when the actuator is disengaged from the plunger.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: June 28, 2022
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place, Larry B. Gray
  • Patent number: 11295846
    Abstract: A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring-biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: April 5, 2022
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Larry B. Gray, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place
  • Patent number: 11266439
    Abstract: A device comprises a retractable shaft; a shaft biasing spring; and an actuator button. The retractable shaft is biased away from the actuator button by the shaft biasing spring. A magnetic attracting force is created between the retractable shaft and the actuator button upon actuation of the actuator button. Before actuation, a distance between the actuator button and the retractable shaft is great enough that the magnetic attracting force is less than a biasing force of the shaft biasing spring such that the retractable shaft is biased away from the actuator button. Upon actuation, the actuator button is depressed to make the distance between the actuator button and the retractable shaft sufficiently small such that the magnetic attracting force is greater than the biasing force of the shaft biasing spring to allow the retractable shaft to be biased towards the actuator button.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: March 8, 2022
    Assignee: Gyrus Acmi, Inc.
    Inventors: Michael O'Connor, John Morici, Michael DeRossi, Steve Gaynes
  • Patent number: 11136998
    Abstract: A vertical pump features a shaft having an end with an impeller arranged thereon and rotates about an axis; a stationary bushing having an axial bushing surface, a radial bushing surface, and a central bushing bore; and a thrust balance drum that includes a central balancing drum bore to receive the shaft, that couples to the shaft so as to rotate about the axis, that includes an axial balance drum surface and a radial balance drum surface, and that is arranged in the central bushing bore of the stationary bushing with the axial balance drum surface positioned with respect to the axial bushing surface to define an axial clearance, and with the radial balance drum surface positioned with respect to the radial bushing surface to define a radial clearance. In operation, the thrust balance drum balances thrust loads produced by the impeller.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: October 5, 2021
    Inventors: Paul Walter Behnke, Daniel Stephen Miller, Abhi Nutankumar Gandhi
  • Patent number: 11118579
    Abstract: Provided is a linear compressor. The linear compressor includes a filter bracket seated on a gas inflow part passing through a cylinder and a filter assembly including a filter member seated on the filter bracket.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: September 14, 2021
    Assignee: LG Electronics Inc.
    Inventors: Wooju Jeon, Donghan Kim, Kichul Choi
  • Patent number: 10933187
    Abstract: A method for controlling a device using a shape-memory alloy wire is disclosed. The method includes determining an ontime for the shape-memory alloy wire based on a target volume to be pumped by a pump plunger, determining the temperature of the shape-memory alloy wire and adjusting the ontime based on the temperature of the shape-memory alloy wire.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: March 2, 2021
    Assignee: DEKA Products Limited Partnership
    Inventors: Colin H. Murphy, Dean Kamen, John M. Kerwin, Larry B. Gray
  • Patent number: 10830045
    Abstract: The scroll compressor (2) comprises a hermetic enclosure (3) comprising a midshell (4), an upper cap (5) and a baseplate (6), the baseplate (6) comprising a mounting base (32) having a plate shape and including a central opening (33), and a central cap (28) arranged within the central opening (33), the central cap (28) comprising a concave portion (29) and a first cylindrical rim portion (30) extending upwardly and having an outer diameter substantially corresponding to an inner diameter of the midshell (4); a compression unit (11) configured to compress refrigerant; and an electric motor (21) configured to drive the compression unit (11) via a drive shaft (19). The mounting base (32) comprises a second cylindrical rim portion (34) extending upwardly and surrounding the central opening (33), wherein an inner diameter of the second cylindrical rim portion (34) substantially corresponds to the inner diameter of the midshell (4) and to an outer diameter of the first cylindrical rim portion (30).
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: November 10, 2020
    Assignee: Danfoss Commercial Compressors
    Inventors: Philippe Perisse, Patrice Oliveau
  • Patent number: 10487814
    Abstract: A linear compressor is provided. The linear compressor may include a frame coupled to a cylinder, a gas hole defined in the frame, and a gas pocket that communicates with the gas hole and transfers a refrigerant gas to the cylinder.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: November 26, 2019
    Inventors: Kyeongweon Lee, Changkyu Kim, Joonsung Park, Wonhyun Jung, Youngcheol Han
  • Patent number: 10316860
    Abstract: A centrifugal fan includes: a casing including an upper casing, a lower casing, and struts disposed between the upper casing and the lower casing; and an impeller that is provided in the casing, the impeller having an annular shroud, a plurality of blades, and a main plate, wherein the main plate of the impeller has an inclined surface between an inner circumference side and an outer circumference side of the impeller, and wherein the inner circumference side of the impeller is located at an upward position in an axial direction of the impeller, and the outer circumference side of the impeller is located at an downward position in the axial direction of the impeller.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: June 11, 2019
    Assignee: Minebea Co., Ltd.
    Inventors: Seiya Fujimoto, Kiyohisa Nara, Tetsuya Seki
  • Patent number: 9572632
    Abstract: A dental irrigation system is provided with a laser source for generating a laser beam and an optical delivery system for the laser beam. The laser beam wavelength ranges from 0.4 ?m to 11.0 ?m. The laser system operates in pulsed operation with pulse sets of 2 to 20 individual pulses of temporally limited pulse length. The pulse sets follow one another with temporal separation. The individual pulses follow one another with pulse repetition rate. The laser system generates at least one vapor bubble within the liquid irradiated with the laser beam. A single pulse causes the vapor bubble to oscillate between a maximal and a minimal volume with a bubble oscillation frequency. The pulse repetition rate within one pulse set is adjusted relative to the bubble oscillation frequency such that synchronization between delivery of the pulses and bubble oscillation is achieved.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: February 21, 2017
    Assignee: Fotona d.o.o
    Inventors: Matjaz Lukac, Marko Kazic
  • Patent number: 9207005
    Abstract: The separating device according to the invention comprises a body delimiting a separating chamber, at least one inlet orifice emerging in the separating chamber and intended to be connected to a discharge orifice of the refrigerant compressor so as to allow a lubricant-refrigerating gas mixture to be introduced into the separating chamber, at least one lubricant outlet orifice emerging in the separating chamber and intended to be connected to a lubricant pan formed in the refrigerant compressor. The separating device comprises a first measuring means arranged to measure the temperature of the lubricant contained in the lubricant pan formed in the refrigerant compressor, and a regulating means arranged to regulate the temperature of the lubricant separated in the separating chamber as a function of the temperature of the lubricant measured by said first measuring means.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: December 8, 2015
    Inventors: Philippe Dugast, Patrice Bonnefoi, Jean De Bernardi, Philippe Dewitte
  • Patent number: 9039388
    Abstract: A compressor has a rotational driver in a hermetic container, a rotational shaft coupled to the rotation driver, and a compression mechanism coupled to the rotational shaft to inhale and compress refrigerant. In addition, a first bearing fixed to the compression mechanism supports the rotational shaft, and a second bearing is separated from the first bearing on the rotational shaft. The gap between the shaft and the first bearing is set to control a gap between the shaft and the second bearing.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: May 26, 2015
    Inventors: Jaechan An, Keunju Lee, Hongseok Seo, Jeongmin Han, Jeonghun Kim
  • Publication number: 20150139828
    Abstract: A two piece impeller centrifugal pump comprising two halves of an impeller facing each other within a volute, a housing having two sides, one side adjacent each impeller half and having an inlet and an outlet, a motor mounted on the housing, the motor driving both impeller halves, for pumping fluid or material from the inlet to the outlet, the housing and the impeller halves having a sealing surface where they contact each other, the centrifugal force of the impeller forcing the fluid or material outward, pushing the two impeller halves outward against the housing.
    Type: Application
    Filed: November 19, 2013
    Publication date: May 21, 2015
    Inventor: Charles Wayne Zimmerman
  • Publication number: 20150132157
    Abstract: A plunger pump includes a pump fluid end having a fluid chamber and a suction bore, discharge bore, and plunger bore in communication with the fluid chamber. A plunger is arranged to reciprocate into and out of the fluid chamber through the plunger bore. The plunger has a plunger body with an inner cavity and an insert disposed in the inner cavity such that the combined stiffness of the insert and plunger body is greater than the stiffness of the plunger body. A crank mechanism is coupled to the plunger and operable to reciprocate the plunger.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: National Oilwell Varco, L.P.
    Inventors: Jason Neal Whaley, Manuel Moeller, Heath Gregory Folk
  • Publication number: 20150118090
    Abstract: Carbon dioxide compressors having one or more coatings with wear surfaces having electroless surface coatings are provided. Alternatively, propane compressors are contemplated having wear surface coatings. The coating is electrolessly applied and may comprise nickel and wear resistant particles, such as boron nitride. The electroless surface coatings for use with compressor machines improve corrosion and wear resistance, as well as anti-friction properties for compressors processing CO2 or C3H8 containing refrigerants. In certain aspects, a scroll machine has an Oldham coupling and/or lower bearing comprising aluminum and has an electroless surface coating comprising nickel boron nitride particles disposed on one or more wear surfaces. In other aspects, a reciprocating compressor has a wear surface, such as on a connecting rod and/or piston coated with an electrolessly applied nickel and boron nitride particle layer. Methods for making the electroless surface coatings are also provided.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Carl Joseph Lachey, Eric Anthony Maurer
  • Publication number: 20150098843
    Abstract: A mechanical seal has a stationary face and rotating assembly adjacent to the stationary face. The rotating assembly includes an upper bellows ring, a lower bellows ring and a runner between the lower bellows ring and the stationary face. A bellows extends between the upper bellows ring and the lower bellows ring. In preferred embodiments, the bellows is constructed from a perfluoroalkoxy polymer and is secured within the upper bellows ring and the lower bellows ring by a selected locking mechanism. The locking mechanism may include the use of crimp rings configured for a press fit engagement within the upper and lower bellows rings. Alternatively, the locking mechanism may employ locking rings configured for threaded engagement with the upper and lower bellows rings.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Inventors: Steven Alan Howell, Brian Reeves, Chengbao Wang, Charles Collins
  • Publication number: 20150093266
    Abstract: A pumping system frame assembly for use in supporting a horizontal pumping system on a platform includes a central body assembly, a motor plate connected to the central body assembly and a plurality of platform support assemblies connected to the central support member. The central body assembly includes a central support member that has an upper face and a pair of side rails connected to the upper face. In particularly preferred embodiments, each of the pair of side rails extends downward from the upper face at approximately a 45 degree angle.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 2, 2015
    Applicant: GE Oil & Gas ESP, Inc.
    Inventors: Andrew Michael Nelson, Jonathan Edward Peterson
  • Publication number: 20150078931
    Abstract: A pump system configured to deliver drilling fluid in at least one of a driving well and a drilling well includes a pump unit, a rotary drive device configured to drive the pump unit, and a gearbox comprising a driving gear and an driven gear. The rotary drive device is operatively connected to the pump unit by the gearbox.
    Type: Application
    Filed: November 20, 2014
    Publication date: March 19, 2015
    Inventor: Albrecht Heinrichs
  • Publication number: 20150071793
    Abstract: The present disclosure provides for a serviceable fan shroud motor support structure which provides a means to repair or replace individual components of the vehicle cooling module such as the fan motor or fan blades, without removing and dismantling the entire vehicle cooling module. The fan shroud motor support structure includes at least one removable spoke, which once removed, would provide access to the portion of the fan assembly requiring service or replacement. Once the repair or replacement is complete, they simply snap the previously removed spokes back into place in order to complete the repair.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 12, 2015
    Inventors: Stephen Sinadinos, Timothy West, Prakash Thawani
  • Fan
    Patent number: 8961109
    Abstract: A fan includes a frame, rotor supported by this frame and having a central hub and a number of blades and a drive mechanism for rotatably driving the rotor, in addition to a ring to which the end zones of the blades are connected. The ring is assembled from two part-rings of the same form which each include a circular strip of sheet material, the free ends of which are mutually connected to form the outer surface of a truncated cone, and a third part-ring which mutually connects the inner edges of the first two part-rings. The end zones of the blades are connected to the third part-ring. The ring has a diameter of more than about 1.50 m. The number of blades amounts to at least eight. The blades are hollow and include a framework structure which is provided with a skin connected thereto.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: February 24, 2015
    Assignee: Bronswerk Heat Transfer B.V.
    Inventor: Augustinus Wilhelmus Maria Bertels
  • Publication number: 20150030470
    Abstract: A suction chamber for use in a horizontal fluid pumping system is supported by a fixed vertical bracket, which is attached to a platform. The suction chamber is positioned between a motor and a pump in the horizontal pumping system. The pumping system may also include a thrust bearing chamber positioned between the motor and the suction chamber. The pumping system may also include a bearing chamber adapter positioned between the thrust bearing chamber and the suction chamber. The suction chamber has a suction chamber pump end and a suction chamber motor end. The suction chamber enables both motor-end seal removal and pump-end seal removal. In both motor end seal removal and pump end seal removal, the suction chamber of the invention remains connected to the vertical bracket. The pumping system may also include an integrated lifting device connected to the vertical bracket to lift the thrust bearing assembly.
    Type: Application
    Filed: July 24, 2013
    Publication date: January 29, 2015
    Applicant: GE Oil & Gas ESP, Inc.
    Inventors: Pedro Arturo Juarez Ortega, Andrew Michael Nelson, Alan Spicer, Michael Campbell
  • Publication number: 20150017023
    Abstract: An acoustofluidic apparatus is provided that functions by the generation of microstreaming in fluid produced by the oscillation of oscillatory elements excited by an energy input such as acoustic energy. An acoustofluidic apparatus includes an oscillatory energy field generator in energetic contact with one or more oscillatory elements contained in a fluid passage. Oscillation of the oscillatory elements induces microstreaming in a fluid that can be used to mix laminar flows of differing fluids, as a micropump for the directional movement of fluid through a fluid passage, for the generation of waveforms in a fluid or plurality of fluids or for other purposes.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 15, 2015
    Inventors: Po-Hsun Huang, Tony Jun Huang
  • Publication number: 20150014176
    Abstract: A wafer processing apparatus is disclosed that includes a wafer support and a processing base. The wafer support is configured to support a wafer at a processing position with respect to a processing base. The processing base includes a scroll pump oriented to pump a processing fluid in a substantially perpendicular direction with respect to the surface of the wafer when the wafer contacts the processing fluid while in the processing position. While in contact with the processing fluid, the wafer support may rotate the wafer in the processing fluid. In one embodiment, the diameter of the scroll pump is substantially the same as or greater than the diameter of the surface of the wafer being processed.
    Type: Application
    Filed: July 9, 2013
    Publication date: January 15, 2015
    Inventor: Raymon F. Thompson
  • Patent number: 8932472
    Abstract: A separator system and method are provided in which the separator has two outlets for different components of mixed fluid. An energy harvester is provided on one of the outlets, wherein harvested energy is transferred to a pump located on an inlet of the separator. As a result, the differential pressure across the separator is increased.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: January 13, 2015
    Assignee: National Oilwell Varco, L.P.
    Inventor: Mark E. Wolf
  • Publication number: 20150010411
    Abstract: In a bearing mechanism according to a preferred embodiment of the present invention, a seal portion in which a surface of a lubricating oil is located is defined in a seal gap defined between an outer circumferential surface of a first tubular portion and an inner circumferential surface of a second tubular portion. The first tubular portion includes, in an area where the outer circumferential surface of the first tubular portion is in contact with the lubricating oil, a maximum outside diameter portion at which the outside diameter of the first tubular portion is greatest, an annular shoulder portion including a surface facing toward the surface of the lubricating oil and at which the outside diameter is smaller than at the maximum outside diameter portion, and an inclined portion at which the outside diameter gradually decreases from the annular shoulder portion toward the surface of the lubricating oil.
    Type: Application
    Filed: March 13, 2014
    Publication date: January 8, 2015
    Applicant: Nidec Corporation
    Inventors: Takehito Tamaoka, Kazuhiko Fukushima
  • Publication number: 20140377083
    Abstract: A compressor system including a driver machine, for example a motor or a turbine, an epicyclic gearbox, and a centrifugal compressor, wherein the driver machine, the epicyclic gearbox, and the centrifugal compressor are connected in train configuration, i.e. the output rotary member of the driver machine is coupled to the input rotary member of the epicyclic gearbox and the output rotary member of the epicyclic gearbox is coupled to the input rotary member of the centrifugal compressor. The gear ratio of the epicyclic gearbox is greater than one, typically much more than one, thus increasing the rotation speed from input to output.
    Type: Application
    Filed: January 24, 2013
    Publication date: December 25, 2014
    Applicant: Nuovo Pignone SRL
    Inventors: Remo Tacconelli, Shankar Chandrasekaran, Murali Krishna Reddy, Tivon sing lezin Ah Karm, Sandilya Vadapalli, Denis Guillaume Guenard
  • Publication number: 20140377092
    Abstract: Apparatus for drainage by well points, including a piston pump and a drive motor coupled to the piston pump by means of a transmission and provided with a drive shaft, which transmission is received in a housing and includes at least one crankshaft and a drive rod coupled thereto, the drive rod is coupled by means of a cross-head to a piston rod of the piston pump and the housing forms an oil sump and the transmission further includes an assembly of a worm and a worm wheel co-acting therewith and mounted on the crankshaft and the worm is provided on a worm shaft extending transversely relative to the crankshaft and vertically in operating mode of the apparatus for drainage by well points.
    Type: Application
    Filed: August 4, 2014
    Publication date: December 25, 2014
    Inventors: Johannes Bruin, Harmen Bruin
  • Publication number: 20140366816
    Abstract: A modular cooling unit is configured with a heat exchanger having a tunnel port extending at least part way through the core of the heat exchanger. A cooling fan motor is mounted within the tunnel port, so as to minimize the overall length of the cooling unit.
    Type: Application
    Filed: June 17, 2013
    Publication date: December 18, 2014
    Inventors: Richard Booth Platt, Rick Anthony Hobbs
  • Publication number: 20140363309
    Abstract: A molten metal pump comprised of a metal base defining a pumping chamber is provided. The pump further includes a motor mount adapted to receive a motor, at least one metal post extending between the base and the motor mount, and a metal shaft disposed between the motor and an impeller disposed in the pumping chamber. A bearing ring engages the impeller. The pumping chamber will include an inlet and an outlet. A steel riser tube in fluid communication the outlet is also provided.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 11, 2014
    Applicant: PYROTEK, INC,
    Inventors: Richard S. Henderson, Jon Tipton, Andrew Horsfall, Peter Cornelis Jetten, Paul Bosworth
  • Publication number: 20140348670
    Abstract: A smart hybrid actuator includes: a body open at one side thereof and having a space portion formed at the inside thereof to reciprocate a piston thereinto, a flow path space portion formed in a wall thereof to flow hydraulic oil therealong, and a cover portion formed at the other side thereof, into which a rod hole is penetrated; a driving motor for driving a hydraulic pump positioned inside the body; the piston extended to the outside from the rod hole of the cover portion in such a manner as to be reciprocated inside the body in the lengthwise direction thereof; and the hydraulic pump provided inside the body and driven by the driving motor, wherein the wall of the body has an inner peripheral wall, and the flow path space portion is formed in the wall of the body.
    Type: Application
    Filed: January 29, 2013
    Publication date: November 27, 2014
    Inventor: Jong Hee Lee
  • Publication number: 20140322043
    Abstract: The present invention provides a reciprocating compressor that compresses a gas, including: a piston; a cylinder that includes a hole portion into which the piston is inserted so as to be movable in the axial direction in a reciprocating manner and includes a compression chamber which is formed in an area of the hole portion near a front end of the piston so that a gas is introduced into the compression chamber; a crank mechanism that drives the piston so that the gas introduced into the compression chamber is compressed by the piston; and a piston ring that is fitted to the outside of the piston and slides on an inner surface forming the hole portion of the cylinder, wherein a tapered portion is formed in an end, which is located near a base end of the piston, in the inner surface forming the hole portion of the cylinder.
    Type: Application
    Filed: March 18, 2014
    Publication date: October 30, 2014
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Kenji NAGURA, Toshio HIRAI, Hitoshi TAKAGI
  • Publication number: 20140314591
    Abstract: A fluid pump includes an inlet for introducing fluid into the fluid pump and an outlet for discharging fluid from the fluid pump. The fluid pump also includes a motor having a shaft with an upper end and lower end that rotates about an axis. The fluid pump also includes a motor frame having a top section, a base section, and a plurality of legs that axially separate the top section and the base section. The fluid pump also includes a lower bushing for radially supporting the lower end of the shaft. The top section defines an upper bushing therein for radially supporting the upper end of the shaft and the base section maintains a coaxial relationship between the lower bushing and the upper bushing.
    Type: Application
    Filed: April 18, 2013
    Publication date: October 23, 2014
  • Publication number: 20140314593
    Abstract: A pump includes a drive assembly having a drive shaft rotatable about a drive axis, and an eccentric coupled to the drive shaft for rotation therewith. The eccentric includes a shaft portion defining an eccentric axis that is offset from the drive axis. The shaft portion includes a shaft end defining a first alignment feature. A piston is rotatably coupled to the shaft portion and defines a second alignment feature. A cylinder reciprocatingly receives the piston. Positioning the first alignment feature in a predetermined orientation with respect to the second alignment feature locates the piston in one of a top-dead-center position and a bottom-dead-center position with respect to the cylinder.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 23, 2014
    Inventor: Xiaofeng Lin
  • Publication number: 20140286800
    Abstract: An air blowing unit of an air conditioner includes a housing to guide suction and discharge of air, a centrifugal fan positioned inside the housing, and a motor to drive the centrifugal fan. The centrifugal fan includes a base coupled to a motor shaft coupled to the motor, a plurality of blades disposed spaced apart from each other in a circumferential direction of the base to guide air introduced in an axial direction of the base to the circumferential direction, a leading edge provided to the blades and arranged close to the motor shaft, a trailing edge provided to the blades and facing in an outer circumferential direction of the base, and at least one first blade of the blades, the leading edge of the first blade being shorter than the leading edge of the other blades.
    Type: Application
    Filed: March 20, 2014
    Publication date: September 25, 2014
    Inventors: Hyun Joo JEON, Dae Gyu KANG, Seon Uk NA, Yong Ho SEO
  • Publication number: 20140271264
    Abstract: An anti-backlash nut assembly for a positive displacement pump assembly includes a two part nut assembly and a backing plate. A spring is disposed between the backing plate and the nut assembly so that the two nut components are pushed together thus biasing the threads together and educing or eliminating backlash.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Anthony Florindi, Clifford James Reil
  • Publication number: 20140271265
    Abstract: A precision pump system having a motor driver for accurately and repeatedly delivering process fluid, (e.g., photo chemicals) using a pumping fluid with minimal process fluid loss to a fabrication process and whereby the motor driver can be easily and quickly replaced without interrupting the fluid flow path. This is accomplished with the use of a process fluid reservoir and a pumping fluid reservoir that are associated with the pump, either integrated with the pump or closely adjacent. In addition, this precision pump system can be remotely monitored, viewed and controlled over the Internet. In addition, trapped process fluid within a downstream filtering block can be recirculated to the process fluid reservoir when trapped gas in the filter is removed. Furthermore, a nitrogen gas source is connected to the process fluid reservoir via a valve in case a need to insert a gas is required.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 18, 2014
    Applicant: Integrated Designs, L.P.
    Inventors: John C. Vines, John Laessle
  • Publication number: 20140255221
    Abstract: A watercraft propulsion system includes a motor mounted in a container in a water-tight manner. A shaft extends from the motor through the bottom of the container to an impeller disposed in a housing outside the container. The impeller draws fluid into the housing through and opening on the back of the housing to propel a watercraft through the water.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 11, 2014
    Applicant: Hydrojet Drive Systems, Inc.
    Inventor: Anthony Frederick Mier
  • Publication number: 20140255210
    Abstract: A vehicle having a variable hydraulic pump may include a sun gear that receives a torque from a power source through an input shaft, a ring gear of which an interior circumference is with a distance from an exterior circumference of the sun gear, a planetary gear that is disposed between the interior circumference of the ring gear and the exterior circumference of the sun gear, a carrier that connects with an output shaft, a hydraulic pump that pumps oil through the output shaft that is connected to the carrier, and a motor that is disposed outside the ring gear to selectively rotate the ring gear.
    Type: Application
    Filed: July 31, 2013
    Publication date: September 11, 2014
    Applicant: Hyundai Motor Company
    Inventor: Jin Young Hwang
  • Publication number: 20140248160
    Abstract: A positive displacement pump includes a drive unit and a pump unit. The pump unit comprises a plurality of working chambers, a plurality of displacement elements, and at least three cylinders. The pump unit is configured to be double-acting.
    Type: Application
    Filed: September 28, 2012
    Publication date: September 4, 2014
    Inventors: Alfred Giessbach, Norbert Jaeger
  • Publication number: 20140240916
    Abstract: An example includes an apparatus to pump a fluid. The apparatus includes a housing extending along a length defining an elongate interior, an actuator in the housing, conforming to the elongate interior, the actuator including a plurality of lumens, each having a length extending substantially parallel to the elongate interior, each from around 10 to 200 micrometers across and an actuator configured to oscillate the actuator in the actuator housing along the length of the elongate interior with a rate differential between movement in a first direction versus movement in a second direction opposite the first direction to pump the fluid.
    Type: Application
    Filed: July 22, 2013
    Publication date: August 28, 2014
    Applicant: AAR Aerospace Consulting LLC
    Inventor: Nihad Daidzic
  • Publication number: 20140241906
    Abstract: Auxiliary power units and methods and systems for activation and deactivation of a load compressor therein are provided. Auxiliary power unit includes the load compressor having an impeller, APU engine, coupling member, pre-spinning means, and APU controller. APU engine is adapted to be mechanically engaged to load compressor to drive load compressor to provide pneumatic power and to be disengaged when the need for pneumatic power ceases. Coupling member couples load compressor and APU engine and is configured to be controllably moved between an engaged position in which the APU engine is mechanically engaged with the load compressor, and a disengaged position, in which the APU engine is disengaged from the load compressor. APU controller is operably coupled to load compressor, APU engine, coupling member, and pre-spinning means and adapted to receive and be responsive to rotational speed signals for controlling movement of coupling member between engaged and disengaged positions.
    Type: Application
    Filed: February 28, 2013
    Publication date: August 28, 2014
    Inventors: David K. Jan, Christopher Zollars
  • Publication number: 20140234135
    Abstract: An air compressor includes a cylinder housing, an outlet receptacle disposed on the cylinder housing, and a partition formed between the cylinder housing and the outlet receptacle and having an air passage formed in the partition, a piston slidably received in the cylinder housing and coupled to a motor for moving relative to the cylinder housing in a reciprocating action in order to generate a pressurized air, and a spring-biased check valve engaged with the partition for selectively blocking the air passage of the partition, the outlet receptacle includes an inner diameter “D2” no less than an inner diameter “D1” of the cylinder housing for allowing the pressurized air to easily flow into the outlet receptacle and for allowing the piston to be moved in a greater moving speed.
    Type: Application
    Filed: April 24, 2014
    Publication date: August 21, 2014
    Inventor: Wen San CHOU
  • Patent number: 8807962
    Abstract: The pump is provided with a plurality of pumping chambers and electrically activatable valves. An elastic membrane is arranged in each pumping chamber and divides the same into a first and a second chamber section. Each valve is connected to the second chamber section of a pumping chamber. When a pressure drop is applied over the valve and the valve is activated (i.e. opened), the pressure in the second chamber section changes, which causes the membrane to move, which in turn leads to a change of the volumes of both chamber sections. This e.g. allows to pump well-defined amounts of fluid from the chamber sections to a drug dispensing device.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: August 19, 2014
    Assignee: Sensirion AG
    Inventor: Felix Mayer
  • Publication number: 20140227115
    Abstract: A pump housing for a pump/compressor includes a front portion and a back portion. The front portion includes an opening forming a motor bearing pocket for seating a motor bearing and through which a motor shaft extends towards the back portion, at least one vent hole radially outwardly spaced from the opening for cooling, and a protrusion extending outward from the front portion, wherein the protrusion is configured to locate a motor housing. A pump/compressor includes the described pump housing and a motor. The front portion of the pump housing is configured as a motor endbell, such that the motor does not include a separate front endbell. The pump/compressor further may include a piston assembly having an integral piston and connecting rod member operable within the pump/compressor. Exhaust air is directed through valve porting in the piston and out of a bottom of the connecting rod.
    Type: Application
    Filed: February 10, 2014
    Publication date: August 14, 2014
    Applicant: Parker-Hannifin Corporation
    Inventors: Peter Michael Ranker, Brett Alan Hall
  • Publication number: 20140219833
    Abstract: A compressor includes a closed container housing a compression element driven by the shaft of a motor. The compression element includes a first and second bearings supporting first and second shaft portions, and at least one cylinder having at least one cylinder chamber disposed between the first and second bearings. At least one roller is fitted to the shaft in the at least one cylinder chamber. The first bearing is disposed closer to the motor than the second bearing. The first and second bearings have first and second annular grooves opened to the at least one cylinder chamber and first and second elastic portions provided in first and second opposing surfaces, respectively. A diameter of the second shaft portion is smaller than a diameter of the first shaft portion. A rigidity of the second elastic portion is smaller than a rigidity of the first elastic portion.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 7, 2014
    Inventors: Takehiro Kanayama, Naoto Tomioka, Yuuichirou Watanabe
  • Publication number: 20140212299
    Abstract: A propulsion engine for an aircraft, the propulsion engine comprising: one or more fans (1, 2) rotatably linked to one or more respective shafts (11); a driving means arranged to drive the one or more fans; and a first hydraulic pump-motor (10) connected to one of the fan shafts, the first hydraulic pump-motor comprising a cam (12) disposed about the shaft and one or more radially extending pistons (13) arranged to engage a surface of the cam, the cam and pistons being arranged such that the pistons reciprocate due to the rotation of the cam, wherein the first hydraulic pump-motor is arranged to selectively transfer a variable amount of power to or from the one or more fans so as to control the rotational speed of the one or more fans.
    Type: Application
    Filed: December 5, 2012
    Publication date: July 31, 2014
    Applicant: ROLLS-ROYCE PLC
    Inventor: Rolls-Royce PLC
  • Publication number: 20140212304
    Abstract: A dryer with a modular blower assembly that allows easy assembly and field servicing through replacement of the blower assembly as a unit. The blower assembly generally includes unique motor mounts that allow a motor assembly to be secured within a housing without being directly fastened to other members.
    Type: Application
    Filed: February 18, 2013
    Publication date: July 31, 2014
    Inventor: Robert E. Michael