Patents Examined by Lilya Pekarskaya
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Patent number: 11933301Abstract: A variable capacity screw compressor comprises a suction port, at least two screw rotors and a discharge port being configured in relation to a selected rotational speed that operates at least one screw rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one screw rotor at a synchronous motor rotational speed for a rated screw compressor capacity. A motor is configured to drive the at least one screw rotor at a rotational speed at a full-load capacity that is substantially greater than the synchronous motor rotational speed at the rated screw compressor capacity. A variable speed drive receives a command signal from a controller and generates a control signal that drives the motor at the selected rotational speed.Type: GrantFiled: October 31, 2022Date of Patent: March 19, 2024Assignee: TRANE INTERNATIONAL INC.Inventors: Dennis R. Dorman, John R. Sauls
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Patent number: 11920612Abstract: A attachment structure enabling more efficient work in performing maintenance of a fan of a fan unit and a more stable electrical connection between a main body of an electrical equipment and a fan unit. A attachment structure configured to detachably attach a fan unit including a fan and a casing housing the fan to/from a main body of an electrical equipment includes a guide mechanism configured to guide a slide motion of sliding the casing in one direction relative to the main body to dispose the casing at a mounting position, and a retaining mechanism configured to restrict movement of the casing relative to the main body in a direction opposite the one direction when the casing is disposed at the mounting position by the slide motion.Type: GrantFiled: May 13, 2020Date of Patent: March 5, 2024Assignee: Fanuc CorporationInventor: Shingo Odauchi
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Patent number: 11905960Abstract: A fan motor includes a motor including a stationary portion and a rotating portion arranged to rotate about a rotation axis extending in a vertical direction; an impeller including a plurality of blades, and arranged to rotate together with the rotating portion; a housing arranged to house the motor and the impeller therein; and a plurality of lead wires each of which is connected to the motor and is arranged to extend radially outward.Type: GrantFiled: October 2, 2020Date of Patent: February 20, 2024Assignee: NIDEC CORPORATIONInventors: Guiling Zhang, Hidenobu Takeshita
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Patent number: 11891997Abstract: The present disclosure provides a two-dimensional motor piston pump, including a two-dimensional motor and a two-dimensional piston pump. The two-dimensional motor and the two-dimensional piston pump are nested with each other and arranged coaxially. The two-dimensional motor includes a stator and an outer rotor, and the outer rotor is coaxial with the stator and is sleeved outside the stator. The two-dimensional piston pump includes: a flow distribution mechanism including a flow distribution rotor and a pump body, a piston mechanism including a left cam and a right cam; a roller assembly including a roller and a roller shaft, and a pump housing, a left end cover, and a right end cover.Type: GrantFiled: May 9, 2023Date of Patent: February 6, 2024Assignees: ZHEJIANG UNIVERSITY, HANGZHOU CITY UNIVERSITY, WENZHOU UNIVERSITYInventors: Qiang Zuo, Longlong Leng, Qilin Jin, Yan Ren, Zhuhua Deng, Wei Shao, Quankun Li, Pengfei Wang, Zheng Wang, Liying Lou, Yanwei Zhao
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Patent number: 11891989Abstract: A diaphragm pump assembly can include a pump drive chamber, a first pump diaphragm chamber, and a second pump diaphragm chamber. The assembly can include a pump motor configured to rotate a motor shaft extending into the pump drive chamber. The assembly can include a cam connected to the motor shaft and configured to rotate in response to rotation of the motor shaft. The assembly can include a drive yoke having a yoke frame and a yoke pocket having a first wall and a second wall parallel and opposite the first wall. First and second pistons can connect to the drive yoke and to first and second diaphragms, respectively. The diameter of the cam can be less than and within 5% the width of yoke pocket and the yoke can be configured to move the pistons along a straight line.Type: GrantFiled: November 11, 2021Date of Patent: February 6, 2024Assignee: Blue-White Industries, Ltd.Inventors: Robert E. Gledhill, III, John Nguyen
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Patent number: 11885325Abstract: A reciprocating compressor includes a piston slidably mounted within a compression chamber and defining a suction port. A valve selectively permits a flow of gas through the suction port and includes a sealing portion positioned over the suction port, an attachment portion mechanically coupled to a compression face of the piston, a support portion that extends away from the attachment portion along the radial direction such that the attachment portion is positioned between the sealing portion and the support portion, wherein the support portion defines a flattened end opposite the sealing portion along the radial direction such that the valve has a non-circular shape, and a connecting portion that mechanically couples the support portion to the sealing portion and permits the sealing portion to move between an open position and a closed position.Type: GrantFiled: November 12, 2020Date of Patent: January 30, 2024Assignee: Haier US Appliance Solutions, Inc.Inventor: Gregory William Hahn
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Patent number: 11879469Abstract: A flush-mounted fan system for an industrial ventilation system includes a fan device equipped with a blade group and an electric motor group. The electric motor group includes a drive shaft on which the blade group is mounted, an electric motor operatively connected to the drive shaft, and an electronic command device of the electric motor. The flush-mounted fan system also includes a flush-mounted frame housing the fan device including a flush-mounted box and a bracket group for supporting the fan device.Type: GrantFiled: June 11, 2018Date of Patent: January 23, 2024Assignee: I.M.E. Industria Motori Elettrici S.P.A.Inventor: Giambattista Losio
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Patent number: 11873819Abstract: The present invention relates to an impeller for an electric water pump capable of preventing a cavitation from occurring in the impeller according to the related art and improving a flow restriction in the impeller by changing an internal structure of the impeller in consideration of a flow of a coolant introduced into the impeller. The impeller for an electric water pump, includes: an inlet member formed in a pipe shape extending to allow a fluid to be introduced; an upper member connected to one end of the inlet member, extending to one side, and having an inner diameter increasing toward the one side; an extension member outwardly extending from one end of the upper member; and a lower impeller member coupled to an upper impeller member formed by the inlet member, the upper member, and the extension member to form a discharge space from which the fluid is discharged.Type: GrantFiled: October 15, 2019Date of Patent: January 16, 2024Assignee: COAVISInventors: Wan Sung Pae, Byeung Jin Kim, Joon Seup Kim
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Patent number: 11867191Abstract: An anti-rotation device configured to prevent a plurality of blades of the industrial fan from rotating. The anti-rotation device includes a movable member and a non-movable member, wherein the movable member is slidable relative to the blades between two positions, an unlocked position that substantially permits the plurality of blades to rotate and a locked position that substantially prevents the plurality of blades from rotating. The movable member is movable in a direction substantially perpendicular to a direction of rotation of the blades. In one embodiment, the anti-rotation device includes a substantially L-shaped lever having a long side and a short side, a pulley operatively connected to the L-shaped lever at a point where the long side and the short side meet, and a substantially flat plate attached to one end of the short side of the L-shaped lever.Type: GrantFiled: August 1, 2019Date of Patent: January 9, 2024Assignee: Saudi Arabian Oil CompanyInventor: Abdulrahman Abdulaziz AlGwaiz
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Patent number: 11867188Abstract: A fan includes a fan frame and a driving device. The fan frame includes a base, a frame shell and static blades arranged on the periphery of the base. The driving device includes a stator structure and a rotor structure. The stator structure includes a stator magnetic pole group and a bushing. The rotor structure includes a bearing, a shaft, a rotor shell, a magnetic structure and blades. The shaft is connected with the rotor shell and disposed through the bearing. The stator magnetic pole group magnetically drives the magnetic structure to rotate the rotor shell. The blades are arranged on the periphery of the rotor shell. Two ends of the frame shell are configured with two turning portions, respectively. The two turning portions are disposed between parts of the frame shell with different curvatures.Type: GrantFiled: June 28, 2018Date of Patent: January 9, 2024Assignee: DELTA ELECTRONICS, INC.Inventors: Shun-Chen Chang, Chao-Fu Yang
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Patent number: 11864713Abstract: A fan motor includes: a motor body; a rotary shaft assembly having a rotor and a bearing mounted on a rotary shaft; a stator that surrounds the rotor; an impeller connected to the rotary shaft; and a bracket including a bearing housing portion for receiving the bearing. The bearing housing portion defines a bearing heat dissipating flow path that allows air to be discharged to an outside of the bearing housing portion after passing between the outer surface of the bearing and the bearing housing portion. Air blown from the impeller can absorb heat of the bearing by contacting an outer surface of the bearing while passing through the bearing heat dissipating flow path.Type: GrantFiled: January 16, 2018Date of Patent: January 9, 2024Assignee: LG Electronics Inc.Inventors: Younggyu Jung, Seungjo Baek, Seongho Cho
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Patent number: 11840995Abstract: In order to provide a piston device that is of simple construction and provides optimised sealing, it is proposed that the piston device should include the following: a housing that includes a piston receptacle; a piston that is arranged to be linearly displaceable in the piston receptacle; a main gasket element that separates a first medium space from a second medium space, and a supplementary gasket element, different from the main gasket element, for sealing in a region between the piston and the piston receptacle.Type: GrantFiled: November 24, 2018Date of Patent: December 12, 2023Assignees: ElringKlinger AG, ElringKlinger Kunststofftechnik GmbHInventors: Patrick Klein, Klaus Hocker, Fabian Kopp
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Patent number: 11835045Abstract: A rotary compressor includes a compression mechanism, a casing, a motor stator and a motor rotor. The motor stator includes stacked steel plates, teeth, and slots. The stacked steel plates are fixed to an inner surface of the casing. A number of the teeth and slots is nine. The motor rotor rotates a crankshaft to drive the compression mechanism. The stacked steel plates have first to ninth areas radially outside the nine teeth, first concave portions provided in five of the areas, and a second concave portion provided in at least one of four areas other than the five areas. The five first concave portions and an inner circumferential surface of a cylindrical portion form five first passages. The second concave portion and the inner circumferential surface of the cylindrical portion form at least one second passage.Type: GrantFiled: April 12, 2022Date of Patent: December 5, 2023Assignee: Daikin Industries, Ltd.Inventors: Yuuichi Yamamoto, Makoto Adachi
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Patent number: 11835044Abstract: A rotary compressor includes a first cylinder, a first piston and a drive shaft. The drive shaft includes a first eccentric portion, a first shaft portion rotatably supported by a first bearing, and a first coupling portion coupling the first shaft portion with the first eccentric portion. The first piston is fitted to the first eccentric portion. The first shaft portion has a cylindrical shape coaxial with the rotational center axis. Re1?e1<R1. Re1 is a radius of the first eccentric portion. R1 is a radius of the first shaft portion. e1 is an eccentricity of the first eccentric portion. An outer surface of the first coupling portion does not extend radially out of an outer surface of the first eccentric portion. The first coupling portion includes a reinforcement portion with an outer surface positioned radially outside an outer surface of the first shaft portion.Type: GrantFiled: August 3, 2018Date of Patent: December 5, 2023Assignee: Daikin Industries, Ltd.Inventors: Takazou Sotojima, Hirofumi Higashi, Kousuke Nishimura
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Patent number: 11828276Abstract: The present disclosure relates to an adjusting device for adjusting the swash plate of an axial piston machine comprising an adjusting piston, which is connected to the swash plate of the axial piston machine via an adjusting lever, and a regulator for adjusting the adjusting pressure acting on the adjusting piston in dependence on a control force acting on a control piston of the regulator, wherein the adjusting piston is connected to the control piston via a feedback spring. In accordance with the present disclosure the feedback spring is at least partly received in a pot-shaped recess of the control piston.Type: GrantFiled: November 13, 2018Date of Patent: November 28, 2023Assignee: LIEBHERR MACHINES BULLE SAInventor: Patrick Wohlhauser
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Patent number: 11821441Abstract: Various systems are provided for a single turbocharger case housing each of turbine of a turbocharger and a bearing of the turbocharger. In one example, an apparatus for an engine includes an integrated, monolithic turbocharger case that houses each of a turbine and a bearing of a turbocharger and a nozzle ring integrated into the turbocharger case between the turbine and the bearing. In further examples of the system, portions of the turbocharger case are formed of a lattice structure.Type: GrantFiled: July 23, 2019Date of Patent: November 21, 2023Assignee: TRANSPORTATION IP HOLDINGS, LLCInventors: Louis Kobielski, Baris Uygun, Adam Felton
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Patent number: 11808286Abstract: A jet pump for a system for supplying fluid to a turbomachine. The jet pump includes an active fluid inlet pipe including a tube delimiting the inlet pipe, and a passive fluid inlet pipe that is fluidically separated from the active fluid inlet pipe by the tube. The active fluid inlet pipe includes at least one twisted blade that is positioned within the tube and is configured to make the active fluid rotate with respect to the axis of the tube.Type: GrantFiled: April 25, 2017Date of Patent: November 7, 2023Assignee: SAFRAN AIRCRAFT ENGINESInventor: Philippe Vertenoeuil
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Patent number: 11802570Abstract: A cover for a ceiling fixture including a top piece having an outer edge, a bottom piece having an outer edge, first and second linear coupling arrangements. The outer edges of the top and bottom pieces being joined together. An opening extending from a beginning point at a location on the top piece through a middle of the top piece outwardly toward a point along the outer edge of the top piece opposite the beginning point to an ending point on the bottom piece. The first linear coupling arrangement being coupled to the top piece and the bottom piece along the opening from the ending point of the opening toward the middle of the top piece. The second linear coupling arrangement being coupled to the top piece along the opening extending from the beginning point through the middle of the top piece toward the first linear coupling arrangement.Type: GrantFiled: December 2, 2019Date of Patent: October 31, 2023Inventor: Shon L Hadden
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Patent number: 11786923Abstract: Disclosed is a metering pump comprising a housing that extends from an inlet region to an outlet and surrounds a piston which is urged into a starting position by a compression spring. In the metering pump the stop limiting the lifting stroke of the piston is formed by the lower end of the piston coming in contact with the inlet portion.Type: GrantFiled: November 30, 2015Date of Patent: October 17, 2023Assignee: Crystal International, Inc.Inventor: Gerhard Brugger
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Patent number: 11773838Abstract: A compressor includes a compression mechanism that compresses refrigerant, and an electromotive mechanism that drives the compression mechanism. A shell accommodates the compression mechanism and the electromotive mechanism, with a reservoir inside the shell and that stores mixed liquid including liquid refrigerant and refrigerating machine oil. An electrode is provided inside the reservoir and faces an inner surface of the shell.Type: GrantFiled: February 2, 2016Date of Patent: October 3, 2023Assignee: Mitsubishi Electric CorporationInventors: Yuki Tamura, Shuhei Koyama, Takashi Ishigaki