Patents Examined by Paul W Thiede
  • Patent number: 11939979
    Abstract: A compressor includes a shell, a first scroll member, a second scroll member and a sealing assembly. The shell defines a first pressure region and a second pressure region. The first scroll member is disposed within the shell and includes a first end plate and a first scroll wrap. The second scroll member includes a second end plate and a second scroll wrap. The second scroll wrap meshingly engages the first scroll wrap to define a compression chamber therebetween. The seal assembly fluidly separates the first and second pressure regions from each other. The seal assembly includes a first plate, a second plate, a sealing member. The sealing member is sealingly engaged with the first plate and the second plate.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: March 26, 2024
    Assignee: Copeland LP
    Inventors: James W. McBean, Aasif M. Nadaf, Shawn W. Vehr
  • Patent number: 11939977
    Abstract: A scroll compressor comprising a fixed scroll (15); an orbiting scroll (16) supported in a manner allowing for orbiting motion; a discharge port through which a fluid compressed by the two scrolls (15, 16) is discharged; an end plate step portion (16E) provided on an end plate of the orbiting scroll (16) formed so that a height of the end plate is higher on a center portion side in the direction of a spiral wrap and lower on an outer end side; and a wrap step portion (15E) provided on a wall portion of the fixed scroll (15) that corresponds to the end plate step portion (16E) so that a height of the wall portion is lower on the center portion side of the spiral and higher on the outer end side; wherein the orbiting scroll (16) is treated for surface hardening and the fixed scroll (15) is not treated for surface hardening.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: March 26, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Hajime Sato, Makoto Takeuchi, Genta Yoshikawa, Kazuhide Watanabe, Katsuhiro Fujita, Takayuki Hagita, Takayuki Kuwahara
  • Patent number: 11933295
    Abstract: Tapered shafts for fluid pumps are disclosed. An example apparatus to pump fluid includes a gear, and a shaft including a taper to define a first portion of the shaft having a first thickness and a second portion of the shaft having a second thickness less than the first thickness, the second portion of the shaft between the gear and the first portion of the shaft.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: March 19, 2024
    Assignee: General Electric Company
    Inventors: Bradley Alan Bauer, Paul T. Sudkamp, Michael J. Halligan
  • Patent number: 11933304
    Abstract: A scroll compressor includes two scroll bodies each having a scroll rib. The scroll ribs engage each other to form at least one compression chamber. The scroll compressor further comprises a drive shaft for driving a moveable scroll body of the two scroll bodies. The moveable scroll body includes a base plate which has two opposing sides. On a first side of the two opposing sides, the scroll rib is arranged, and on a second side of the two opposing sides a hub is arranged. The hub has a receiving portion for a drive section of the drive shaft. The moveable scroll body has at least one passage from an interior of the receiving portion to a hub environment located around the hub at the second side of the two opposing sides.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: March 19, 2024
    Assignee: BITZER KUEHLMASCHINENBAU GMBH
    Inventor: Paul J. Flanigan
  • Patent number: 11926013
    Abstract: The invention refers to a pneumatically driven apparatus, in particular a hand guided and/or hand held pneumatic power tool (1), comprising a pneumatic rotary vane motor (100), a working element (9) and a gear arrangement functionally located between the motor (100) and the working element (9) for transmitting a rotational movement and torque. The motor (100) comprises a housing defining a cylindrical chamber (114) extending along a cylinder axis, and a cylindrical rotor (104) located in the chamber (114) and extending along and rotatable about an axis (60) running parallel to the cylinder axis, the rotor (104) comprising a plurality of radially movable vanes (108) forced radially outwards during rotation of the rotor (104).
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: March 12, 2024
    Inventor: Guido Valentini
  • Patent number: 11927187
    Abstract: A compressor includes a shell, a bearing housing, an orbiting scroll, a non-orbiting scroll and a spacer. The bearing housing includes a central body and a plurality of arms extending radially outwardly from the central body. Each of the arms has a first aperture. The non-orbiting scroll is meshingly engaged with the orbiting scroll and includes a plurality of second apertures. Each second aperture receives a bushing defining a first longitudinal axis and a fastener defining a second longitudinal axis. The fastener extends through the bushing and into a corresponding one of the first apertures in the bearing housing. The spacer is disposed between the bushing and the fastener of each second aperture and is configured to engage one of the bushing and the fastener to restrict radial misalignment between the first longitudinal axis of the bushing and the second longitudinal axis of the fastener.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: March 12, 2024
    Assignee: Copeland LP
    Inventors: Harry B. Clendenin, Dennis D. Pax, Larry L Bingham, Keith J. Reinhart, Nicholas J. Altstadt
  • Patent number: 11927349
    Abstract: A deflector assembly for a combustor defining an operational fluid flow. The deflector assembly includes an upstream surface and a downstream surface opposite the upstream surface. One or more fastening mechanisms each extends through the deflector assembly. One or more cooling holes extend through the deflector assembly from the upstream surface to the downstream surface. The one or more cooling holes are located about the one or more fastening mechanisms to operably direct cooling air about the one or more fastening mechanisms at the downstream surface.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: March 12, 2024
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Vijayaraj Sukumar, Perumallu Vukanti, Pradeep Naik, Ajoy Patra, Karthikeyan Sampath, Rimple Rangrej, Hiranya Nath, Krishnendu Chakraborty, Narasimhan S. Sahana, Saket Singh, Ravindra Shankar Ganiger
  • Patent number: 11913451
    Abstract: A screw compressor includes a first rotor and a second rotor, and each rotor is provided with a synchronisation gear. The screw compressor is further provided with an electric motor and one or two driving gears for driving the first rotor or second rotor. At least one of the synchronisation gears or driving gears is provided with spokes between a rim supporting a gear mesh and a corresponding gear hub.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: February 27, 2024
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Wim Meeusen, Bjorn Verrelst
  • Patent number: 11913450
    Abstract: A scroll compressor includes a discharge guide disposed in a high-pressure part to guide refrigerant discharged from a compression part to a refrigerant discharge pipe, and the discharge guide may extend by a preset height from an inner circumferential surface of a casing constituting the high-pressure part toward one side surface of a high and low pressure separation plate. This can guide discharge refrigerant discharged to the high-pressure part to quickly flow to the refrigerant discharge pipe before being spread in an entire space of the high-pressure part, thereby preventing the high and low pressure separation plate from being overheated by discharge refrigerant of high temperature. This can result in preventing suction refrigerant of a low-pressure part from being heated by heat of discharge refrigerant transferred through the high and low pressure separation plate, thereby reducing a specific volume of the suction refrigerant and improving compressor efficiency.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: February 27, 2024
    Assignee: LG Electronics Inc.
    Inventors: Jinyong Jang, Sanghun Seong, Honghee Park, Byeonghun Yu
  • Patent number: 11905953
    Abstract: An air injection enthalpy-increasing scroll compressor is provided. The compressor has a main frame, a movable scroll plate and a stationary scroll plate. The movable scroll plate has a movable plate end plate and a movable scroll wrap arranged on a side end face of the movable plate end plate. A back pressure chamber is defined between the movable plate end plate and the main frame. The stationary scroll plate has a fixed scroll end plate and a stationary scroll wrap arranged on a side end face of the fixed scroll end plate. The stationary scroll wrap and the movable scroll wrap are engaged with each other to form crescent-shaped compression cavities. The movable scroll plate and the stationary scroll plate are provided with medium pressure passages that, during the rotation of the movable scroll plate, communicate the compression cavity with the back pressure chamber.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: February 20, 2024
    Assignee: GUANGDONG MIDEA ENVIRONMENTAL TECHNOLOGIES CO., LTD.
    Inventors: Weiheng Liang, Baiying Huang, Osamu Aiba, Kang Zhang, Honghui Chen
  • Patent number: 11905948
    Abstract: In a variable displacement type oil pump, a swing member accommodates a pump forming member, and swings to vary a quantity of change of a volumetric capacity of each pump chamber. A biasing member biases the swing member in a direction to increase the quantity of change of the volumetric capacity of each pump chamber. A first control oil chamber applies a first torque to the swing member in a direction to reduce the quantity of change of the volumetric capacity of each pump chamber. A second control oil chamber applies a second torque to the swing member in a direction to increase the quantity of change of the volumetric capacity of each pump chamber, wherein the second torque is larger than the first torque. A switching mechanism switches between supply and drain of working oil with respect to the second control oil chamber.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: February 20, 2024
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Koji Saga, Yasushi Watanabe, Hideaki Ohnishi, Atsushi Naganuma
  • Patent number: 11898561
    Abstract: Disclosed is a direct-drive refrigerant screw compressor, having: a housing; a compression chamber in the housing; a pair of rotors, each rotor of the pair of rotors being rotationally disposed in the compression chamber and including an outer surface with a screw-geared profile; a fluid being disposed in the compression chamber, the fluid consisting of a working fluid for providing lubrication to each rotor; a first port extending through the housing and configured for directing the fluid toward the compression chamber; and when the compressor is activated, each rotor rotates and the fluid is distributed about each rotor to lubricate each rotor.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: February 13, 2024
    Assignee: CARRIER CORPORATION
    Inventors: Yifan Qiu, Amit Vaidya, Ulf J. Jonsson, Zaffir A. Chaudhry, David M. Rockwell
  • Patent number: 11891995
    Abstract: A rotary compressor may include a cylinder having an inner peripheral surface that defines a compression space, and provided with a suction port configured to communicate with the compression space and through which refrigerant is suctioned into the compression space; a roller rotatably provided in the compression space of the cylinder, and having a plurality of vane slots that provides a back pressure at one side thereinside and provided at a predetermined interval along an outer peripheral surface of the roller; and a plurality of vanes slidably inserted into the vane slots, respectively, and configured to rotate together with the roller, front end surfaces of which come into contact with the cylinder due to the back pressure to partition the compression space into a plurality of compression chambers. High-pressure refrigerant may be accommodated between one of the vanes and the cylinder.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: February 6, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Seseok Seol, Seoungmin Kang, Joonhong Park
  • Patent number: 11879457
    Abstract: An electric compressor includes a housing, refrigerant inlet port, a refrigerant outlet port, an inverter section, a motor section, a compression device and a front cover. The housing defines an intake volume and a discharge volume. The refrigerant inlet port is coupled to the housing and is configured to introduce the refrigerant to the intake volume. The compression device is a scroll-type compression device configured to compress the refrigerant. The refrigerant outlet port is coupled to the housing and is configured to allow compressed refrigerant to exit the scroll-type electric compressor from the discharge volume.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: January 23, 2024
    Inventor: Brent Haseley
  • Patent number: 11879383
    Abstract: The invention relates to a torque limiting device in a torque bearing connecting structure between a gearbox and a stationary structure in a gas turbine engine, wherein the torque limiting device comprises a mechanical fuse in the connection structure comprising an at least partially circumferential weakening of the material. The invention also relates to a gas turbine engine.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: January 23, 2024
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Tomasz Grubba, Jos Raven
  • Patent number: 11867176
    Abstract: An apparatus for a submersible screw pump includes a cylindrical rotor located inside of a cylindrical stator. The rotor has a screw thread formed in an opposite direction in relation to screw threads of the stator. The external surface of the rotor has a curvilinear shape and the internal surface of the stator has semicircular shapes without rectangular edges. These surface features of the rotor and stator obtain high speed performance for the apparatus with reduced vortices. A gap between the internal surface of the stator and the external surface of the rotor is 0.1-0.2 millimeters. A unloading thrust bearing is attached to a rotor shaft positioned between an intake thrust bearing and the intake end of the rotor. A cavity in the unloading thrust bearing is configured to receive production fluid from the discharge end of the rotor.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: January 9, 2024
    Assignee: Lex Submersible Pumps FZE Company
    Inventors: Anton Shakirov, Vitaly Koropetskiy, Iaroslav Alekseev, Vadim Batalov
  • Patent number: 11859495
    Abstract: A rotary piston and cylinder device (1) comprising: a rotor (2), comprising a rotor surface (2a), a piston (5) which extends from the rotor surface, a stator (4), a rotatable shutter (3), the rotor surface and the stator together defining an annular chamber, and the piston arranged to rotate, through the annular chamber, wherein when the chamber is viewed in axial cross-section, substantially a single surface of the stator in part defines the chamber (100).
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: January 2, 2024
    Assignee: LONTRA LIMITED
    Inventor: Stephen Francis Lindsey
  • Patent number: 11845678
    Abstract: A system generating power is disclosed. The system generates power from brine discharged into a body of water, such as a sea or ocean. The system comprises a brine source and a pipe. The brine source located at a first elevation transfers brine into the pipe. Brine travels through the pipe and is discharged into the body of water through a discharge outlet located at a second elevation. The first elevation is a higher elevation than the second elevation. Power is generated due the gravitational hydrostatic pressure difference between the brine and the water at the discharge outlet due to the density difference between brine and water, and the elevation difference between the first elevation and the second elevation. In some embodiments, power may be extracted by a turbine, or pressure exchanger, or generator. In some embodiments, the brine source may comprise brine produced by a desalination system.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: December 19, 2023
    Assignee: Innovatory Energy LLC
    Inventor: Ethan Novek
  • Patent number: 11846288
    Abstract: A scroll compressor including a scroll assembly comprising an orbiting scroll and a non-orbiting scroll; and a silencing device provided above the scroll assembly and comprising a partition plate and a silencer. The partition plate is used to divide an interior space of the scroll compressor into a high-pressure chamber and a low-pressure chamber, and the partition plate has a central through-hole. The silencer is arranged above the gas outlet, the silencer is fixed to the central through-hole, and is independent from the scroll assembly. The silencing device of the scroll compressor can eliminate noise and seal the divided high-pressure and low-pressure chambers, and can be arranged flexibly without interfering with the scroll assembly.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: December 19, 2023
    Assignee: Copeland Climate Technologies (Suzhou) Co. Ltd.
    Inventors: Yuanyuan Wei, Tao Yang, Chao Jiang
  • Patent number: 11840422
    Abstract: A braking system for a hose or cable reel including a housing configured to fit inside a drum of the reel and to rotate with the drum during use, and a gerotor including inner and outer gears disposed inside the housing, wherein the inner gear is attachable to a shaft of the reel and the outer gear is configured to rotate relative to the inner gear with the housing during use thereby causing hydraulic fluid to be pumped through the gerotor and impede rotation of the drum.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: December 12, 2023
    Assignee: MACNAUGHT PTY LTD
    Inventors: Marco Uccellani, Prabhjot Singh