Patents Examined by David N Brandt
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Patent number: 10962002Abstract: Overheating of a process liquid retained in a reservoir of a multiphase pump during extended gas slugs is avoided by circulating a cooling liquid in thermal contact with a process liquid through an external cooling apparatus, which can include a heat exchanger. In some embodiments, process liquid from the reservoir is circulated through the cooling loop, while in other embodiments a separate cooling liquid is circulated between a reservoir heat exchanger and the external cooling apparatus. The liquid in the cooling loop can be circulated by a separate cooling pump, or process liquid can be circulated through the cooling loop due to a pressure differential between an inlet and an outlet of the cooling loop within the multiphase pump. The multiphase pump can be a twin screw pump, and the reservoir can be formed between outer and inner casings of the multiphase pump.Type: GrantFiled: November 1, 2016Date of Patent: March 30, 2021Assignee: Flowserve Management CompanyInventors: Alejandro Fratini, Jelenko Krsmanovic, Carlos Reyes, William Tang
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Patent number: 10883424Abstract: A multi-spool gas turbine engine comprises a low pressure (LP) spool and a high pressure (HP) spool independently rotatable about a central axis. The LP pressure spool has an LP compressor and an LP turbine. The HP spool has an HP turbine and an HP compressor. An accessory gear box (AGB) is drivingly connected to the HP spool. The LP compressor is disposed axially between the HP compressor and the AGB. A gear train drivingly couples the LP compressor to the LP turbine. The gear train is integrated to the AGB.Type: GrantFiled: December 20, 2016Date of Patent: January 5, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventor: Guy Lefebvre
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Patent number: 10876538Abstract: An assembly having a first compressor train and a second compressor train for compressing a process fluid, wherein the first compressor train has a first drive and a first compressor, wherein the second compressor train has a second drive and a second compressor, wherein the first compressor train is not mechanically coupled to rotating parts of the second compressor train for transmission of torque, wherein the two compressors of the different compressor trains are directly connected to each other fluidically by a connecting fluid line such that the first compressor is arranged upstream of the second compressor. The first compressor compresses at a pressure ratio between 1.1 and 1.6 before the process fluid is fed to the second compressor.Type: GrantFiled: February 24, 2016Date of Patent: December 29, 2020Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Joachim Nissler, Hans Schulz
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Patent number: 10859081Abstract: A tube pump having small driving energy is provided. The tube pump includes: a flexible tube for conveying a fluid; a holder part holding the tube so that the tube is at least partially bent; a driving part; and at least one pressing part, rotationally driven around a first central axis by the driving part, and pressing the tube along the bent portion of the tube held by the holder part while rotating around the first central axis, thereby conveying the fluid in the tube. The pressing part has an inclined plane inclined from the side of the tube toward the side of the pressing part in a radially outward direction with reference to the first central axis.Type: GrantFiled: October 2, 2018Date of Patent: December 8, 2020Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masamune Nagahama, Hiroyuki Kaneko, Hiroyuki Sugiura
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Patent number: 10851782Abstract: Disclosed herein is a rotary compressor capable of maintaining the overall dynamic balance and providing low vibration and low noise even at high speed operation and capable of improving efficiency by providing a communication passage to communicate operation chambers, which are provided inside each of the plurality of cylinders for compressing a refrigerant, to each other. The rotary-type compressor includes a housing, a drive motor provided inside the housing to generate power and having a stator and a rotor, and a compression unit that receives power from the drive motor and compresses the refrigerant. The compression unit includes a plurality of cylinders in which an operation chamber to compress the refrigerant is provided. The operation chambers provided in each of the plurality of cylinders are provided to have different volumes, and a balancer provided to maintain dynamic balance is provided only in the lower side of the rotor.Type: GrantFiled: September 9, 2015Date of Patent: December 1, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Takeaki Ashimori, Osamu Aiba
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Patent number: 10837463Abstract: A gas pulse jet pump for use with a fluid transfer system is provided. The gas pulse jet pump includes a main body including at least one suction chamber configured to receive production fluid. The gas pulse jet pump further includes an inlet configured to receive the production fluid into the gas pulse jet pump, at least one valve configured to regulate flow of the production fluid through the gas pulse jet pump, at least one gas injection port configured to intermittently inject high pressure gas into the at least one suction chamber, and an outlet configured to receive the production fluid from the at least one suction chamber and discharge the production fluid from the gas pulse jet pump.Type: GrantFiled: May 24, 2017Date of Patent: November 17, 2020Assignee: BAKER HUGHES OILFIELD OPERATIONS, LLCInventors: Aboozar Hesami, Pejman Kazempoor, Victor Jose Acacio, Jeremy Daniel Van Dam
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Patent number: 10830055Abstract: An airfoil includes an airfoil body having a first wall, a second wall, a third wall, a tip shelf, a pocket surface, and a tip surface. The tip shelf circumferentially extends between the first wall and the second wall. The pocket surface circumferentially extends between the second wall and the third wall. The first wall, the second wall, the third wall, and the pocket surface at least partially define a squealer pocket. The tip surface is spaced apart from the pocket surface and circumferentially extends between the second wall and the third wall.Type: GrantFiled: December 5, 2016Date of Patent: November 10, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Dominic J. Mongillo, Jr., Carey J. Clum
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Patent number: 10830230Abstract: A method for operating a linear compressor includes establishing a set of predictors, and establishing a model for an estimated head clearance of the linear compressor with the set of predictors. Coefficients of the model for the estimated head clearance of the linear compressor may also be established. The model for the estimated head clearance of the linear compressor may be used to calculate an estimated head clearance during operation of the linear compressor.Type: GrantFiled: January 4, 2017Date of Patent: November 10, 2020Assignees: Haier US Appliance Solutions, Inc., University of Louisville Research Foundation, Inc.Inventors: Gregory William Hahn, Srujan Kusumba, Michael Lee McIntyre, Joseph W Latham
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Patent number: 10823165Abstract: A gas transportation device includes a casing, a nozzle plate, a chamber frame, an actuator, an insulating frame and a conducting frame, which are stacked sequentially. A resonance chamber is defined by the actuator, the chamber frame and the suspension plate collaboratively. When the actuator is enabled, the nozzle plate is subjected to resonance and the suspension plate of the nozzle plate vibrates in the reciprocating manner. Consequently, the gas is transferred to a gas-guiding chamber through the at least one vacant space and discharged from the discharging opening and the gas is circulated.Type: GrantFiled: August 8, 2018Date of Patent: November 3, 2020Assignee: MICROJET TECHNOLOGY CO., LTD.Inventors: Hao-Jan Mou, Chun-Lung Tseng, Che-Wei Huang, Chien-Tang Wen, Shih-Chang Chen, Yung-Lung Han, Chi-Feng Huang
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Patent number: 10808675Abstract: An axial piston machine may include a rotor rotatably mounted in a housing. A plurality of cylinders may be arranged in a ring around the rotor. A plurality of pistons may each be arranged within each of the plurality of cylinders and may be constructed and arranged to selectively translate within the plurality of cylinders. A plurality of inlet openings may be defined in a cylinder head and at least one outlet opening may be defined in the housing. The plurality of cylinders may be in operative communication with the plurality of inlet openings and the at least one outlet opening. An inlet channel may be defined in the cylinder head and may extend to each of the plurality of inlet openings. An outlet channel may be defined in the housing and may be in operative communication with the at least one outlet opening. A bypass channel may be defined in the housing and may extend from the cylinder head into one of the outlet channel or a swashplate space.Type: GrantFiled: February 18, 2016Date of Patent: October 20, 2020Assignee: MAHLE INTERNATIONAL GMBHInventors: Michael Bucher, Mirko Guenther, Michael Hoetger, Michael Kreisig, Hannes Marlok, Falk Schneider
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Patent number: 10801485Abstract: A gas transportation device includes a casing, a nozzle plate, a chamber frame, an actuator, an insulating frame and a conducting frame, which are stacked sequentially. The nozzle plate includes at least one bracket, a suspension plate and a through hole. The bracket includes a fixing part and a connecting part. A shape of the fixing part matches a shape of the fixing recess. The nozzle plate is accommodated within the accommodation space. A resonance chamber is defined by the actuator, the chamber frame and the suspension plate collaboratively. When the actuator is enabled, the nozzle plate is subjected to resonance and the suspension plate of the nozzle plate vibrates in the reciprocating manner. Consequently, the gas is transported to a gas-guiding chamber through the at least one vacant space and outputted from the discharging opening, thereby achieving the gas transportation and circulation.Type: GrantFiled: August 3, 2018Date of Patent: October 13, 2020Assignee: MICROJET TECHNOLOGY CO., LTD.Inventors: Hao-Jan Mou, Chun-Lung Tseng, Che-Wei Huang, Chien-Tang Wen, Shih-Chang Chen, Yung-Lung Han, Chi-Feng Huang
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Patent number: 10781814Abstract: The invention relates to a piston pump, in particular for injection systems for motorized two-wheeled vehicles and/or for motorized three-wheeled vehicles, having a compression chamber, a piston, an inlet valve, and an outlet valve. A fluid can flow into the compression chamber via the inlet valve, and the fluid can flow out of the compression chamber via the outlet valve. A region in the form of a channel, which is arranged fluidically upstream of the outlet valve, in particular directly upstream of the outlet valve, has a cross-section which is reduced compared to a compression chamber region at a distance from the outlet valve. The invention is characterized in that a piston end face facing the channel has a region which can be immersed into the channel.Type: GrantFiled: September 7, 2015Date of Patent: September 22, 2020Assignee: Robert Bosch GmbHInventors: Andreas Plisch, Jurij Giesler, Siamend Flo, Thorsten Allgeier, Walter Maeurer, Lena Maren Baessler
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Patent number: 10738769Abstract: A first diaphragm which forms a wall of a first pump chamber is provided in the double diaphragm pump according to the invention, wherein the first diaphragm can be moved by means of a first driving means. In addition, a second diaphragm which forms a wall of a second pump chamber is provided, wherein the second diaphragm can be moved by means of a second driving means. What is more, a control for the driving means is provided, said control being designed and operable such that it controls the two driving means subject to one or a plurality of conditions.Type: GrantFiled: June 29, 2016Date of Patent: August 11, 2020Assignee: Wagner International AGInventors: Gilbert Lutz, Karsten Juterbock, Angelo Basso, Thomas Kluser
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Patent number: 10731657Abstract: A drive device includes: a board including an opening; and a motor including: a rotational shaft; a housing supporting the rotational shaft for rotation, fixed to the board so as to surround the opening, and having a cylindrical shape; a bearing supporting the rotational shaft for rotation and press-fitted onto an inner peripheral surface of the housing; and a thrust cover supporting an end of the rotational shaft and fixed onto the inner peripheral surface of the housing by an adhesive.Type: GrantFiled: September 9, 2016Date of Patent: August 4, 2020Assignee: SHINANO KENSHI CO., LTD.Inventor: Hiroki Kosaka
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Patent number: 10731464Abstract: The linear actuator comprises a double-chamber solenoid pump comprising at least one pump coil, a multi-way valve and at least one pump armature that can be moved by energizing the at least one pump coil and is provided with a switching armature by means of which the multi-way valve can be switched and which can be moved by energizing the at least one pump coil. In the method, both the switching armature and the pump armature are moved by energizing the pump coil.Type: GrantFiled: July 20, 2015Date of Patent: August 4, 2020Assignee: Siemens AktiengesellschaftInventors: Georg Bachmaier, Marco Cyriacks, Reinhard Freitag, Andreas Gödecke
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Patent number: 10718536Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes a blower assembly having a blower housing configured to operate with various sized impellers. The blower housing includes a cutoff that is selectively radially adjustable to locate a leading edge of the cutoff in a position relative to one of the various sized impellers to maintain a proper clearance between the leading edge of the cutoff and one of the various sized impellers in order to efficiently separate blower discharge airflow from incoming airflow collected in the blower housing and prevent recirculation of the blower discharge airflow through the blower housing.Type: GrantFiled: May 12, 2017Date of Patent: July 21, 2020Assignee: Trane International Inc.Inventor: Stephen Stewart Hancock
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Patent number: 10704539Abstract: A metering pump includes a motor having a motor shaft extending through a drive housing, a carriage assembly disposed around the motor shaft and within the drive housing, a plunger return block mounted to the carriage assembly, a piston disposed along an axis, and a carriage bearing disposed on the motor shaft and within the carriage assembly, slidably coupled to the carriage assembly, and configured to provide a second contact point for maintaining the alignment of the carriage assembly with the axis of the piston. The piston further includes a stroke adjuster mounted to the carriage assembly to provide a first contact point for maintaining the alignment of the carriage assembly with the piston, a drive shaft connected to the stroke adjuster, and a plunger connected to the drive shaft. The metering pump also includes a cam coupled to the motor shaft to rotate with the motor shaft and a bearing disposed around the cam to rotate therewith and to contact the stroke adjuster and the plunger return block.Type: GrantFiled: April 29, 2016Date of Patent: July 7, 2020Assignee: Graco Minnesota Inc.Inventors: Derek R. Shaw, John R. Ingebrand, Joseph A. Daniski, Daniel J. Rogers, Corey D. Meyer
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Patent number: 10704548Abstract: A co-rotating scroll compressor is provided in which pressure differences between inner and outer portions of a suction chamber are maintained, back pressures are applied to rear surfaces of end plates of a drive scroll and a driven scroll in directions in which the two scrolls are moved toward each other to prevent compression leakage of a fluid, and a lubricant oil is easily supplied to the two scrolls using the back pressures. The co-rotating scroll compressor may include pressure seals between the rear surfaces of the end plates of the drive scroll and the driven scroll and an inner wall of the suction chamber such that the two scrolls are pressed in directions to be moved toward each other by the back pressures, and the oil is supplied to rotary supports and close contact portions of the two scrolls using the back pressures.Type: GrantFiled: September 18, 2017Date of Patent: July 7, 2020Assignee: LG ELECTRONICS INC.Inventors: Yoonsung Choi, Byung-Kil Yoo, Jinho Kim, Byeongchul Lee
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Patent number: 10690109Abstract: The devices comprises a distributor (16) that presents distribution ducts opening out into a radial distribution face (16A), and a distributor-counterpart engaged in each other in such a manner that two main enclosures (18, 20) are provided between their opposite axially-extending faces. The device comprises a cylinder-capacity selector comprising two slides (24, 26) arranged after the other in a bore (22) of the element engaged in the other, to which are connected the main enclosures (18, 20) and at least some of the distribution ducts (30, 31). The slides are able to adopt at least three distinct configurations establishing different connections between the main ducts (18, 20) and the distribution ducts via the main enclosures, in order to be able to obtain at least three distinct operating cylinder capacities.Type: GrantFiled: November 1, 2016Date of Patent: June 23, 2020Assignee: POCLAIN HYDRAULICS INDUSTRIEInventors: Dominique Costaz, Loic Bonnard, Julien Viard
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Patent number: 10690146Abstract: A turbofan engine is disclosed which includes a nacelle assembly, having an interior surface for directing airflow, and a flow disruptor positioned on the interior surface upstream of the fan, the flow disruptor extending towards the axis a height greater than the anticipated boundary layer height of the airflow. A turbofan engine which includes an array of circumferentially disposed flow disruptors extending from a fan case inner surface is also disclosed. A method of mitigating fan flutter in a gas turbine engine by generating a circumferential asymmetrically in the airflow, upstream of the fan, is also described.Type: GrantFiled: January 5, 2017Date of Patent: June 23, 2020Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Tibor Urac, Peter Townsend