Patents Examined by Deming Wan
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Patent number: 11905793Abstract: A rotation converter configured to convert an alternative clockwise-counterclockwise rotation to a single rotation direction, including: a hex shaft including an input hex, an output hex, and a gear contact, wherein the input hex and output hex are separated by the gear contact; a hex mover coupled to the input hex, wherein the hex mover includes following teeth and driving teeth; a following ring gear in contact with the following teeth; a driving ring gear in contact with the driving teeth; one or more gear pinions in contact with the following ring gear and the driving ring gear; one or more gear rods configured to support the one or more gear pinions; and a gear holder coupled to the one or more gear rods.Type: GrantFiled: April 10, 2023Date of Patent: February 20, 2024Assignee: GQ Technical LLCInventor: Guochang Wang
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Patent number: 11883639Abstract: The present invention relates to a gear pump having a housing that has an inflow for the liquid to be conveyed, that has an outflow for the conveyed liquid, and that has a pump chamber in which the gear or gears for conveying the liquid are present, with at least one bearing position being present in the housing, in which bearing position at least one gear is rotatably received, wherein the inflow is in a different plane than the outflow; and wherein at least one first flushing passage that extends up to the bearing position(s) is in direct or indirect fluid communication with the inflow and/or with the outflow.Type: GrantFiled: January 27, 2020Date of Patent: January 30, 2024Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventor: Simone Lippert
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Patent number: 11885335Abstract: An oil supply mechanism comprises: an oil pump device connected to a rotating shaft of a rotating machinery; a main oil supply passage formed in the rotating shaft substantially in the axial direction of the rotating shaft; and a bypass oil passage in communication with the main oil supply passage and allowing a part of lubricating oil in the main oil supply passage to flow out via the bypass oil passage. The bypass oil passage extends in a direction substantially transverse to the rotating shaft. The bypass oil passage is configured such that a radial distance from an outlet of the bypass oil passage to the axis of the rotating shaft is greater than the radius of the rotating shaft.Type: GrantFiled: October 23, 2019Date of Patent: January 30, 2024Assignee: Copeland Climate Technologies (Suzhou) Co. Ltd.Inventors: Xiaowei Hu, Lingfeng Ni
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Patent number: 11873813Abstract: The present invention relates to highly efficient suction and compression rotating mechanisms, particularly the compression mechanism with piston blocks mounted on two axes and driven by a pair of matching gears in the field of compressors and vacuums or hydraulic system such as oil pump, hydraulic motor, hydraulic gearbox, specifically there is application that uses this mechanism to create one rotary motor with multi compression stages, force-generating stages and continuous fuel burning regime. The new rotary lobe structure in this invention provides a close contact between curved surfaces with the same radius, which is a “Surface-to-surface” contact, with much better tightness than “line” contact.Type: GrantFiled: July 8, 2019Date of Patent: January 16, 2024Inventor: Hai Nguyen
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Patent number: 11867177Abstract: A pump device includes a housing, a pump element, and an on-off valve. The housing includes a suction passage defining a suction port at an upstream end, a discharge passage defining a discharge port at a downstream end, and a return passage returning a part of a fluid flowing through the discharge passage to midway of the suction passage. The pump element is accommodated in the housing and rotates around a predetermined axis to suck, pressurize, and discharge a fluid. The on-off valve opens and closes the return passage. In the suction passage upstream of an opening at which the return passage is opened to the suction passage, the housing includes a directional wall which directs a flow of a suction fluid sucked into the suction passage from the suction port to divert from a flow of a return fluid returned from the return passage.Type: GrantFiled: January 12, 2023Date of Patent: January 9, 2024Assignee: MIKUNI CORPORATIONInventor: Yasuhiro Ino
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Patent number: 11867175Abstract: A scroll compressor includes a casing having an oil storage space, a fixed scroll disposed inside the casing, an orbiting scroll disposed on one side of the fixed scroll and performing an orbiting motion relative to the fixed scroll so as to form a compression chamber, a discharge cover coupled to another side opposite to the one side of the fixed scroll and having a cover bottom surface, and an oil feeder coupled to the cover bottom surface to face a direction opposite to the fixed scroll, to communicate with the oil storage space. The cover bottom surface is disposed at an inner side of an inner circumference of the oil feeder and defines a discharge hole to communicate with the inner side of the oil feeder.Type: GrantFiled: November 23, 2022Date of Patent: January 9, 2024Assignee: LG Electronics Inc.Inventors: Taekyoung Kim, Sungyong Ahn, Junghoon Park, Jaeha Lee
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Patent number: 11867183Abstract: Transmission between drive shaft and a driven shaft, which transmission includes a housing and at least a driven gearwheel that is mounted on the driven shaft and a drive gearwheel that is mounted on a drive shaft. The housing is provided with an outlet opening, which outlet opening is placed in the radial extension of one of the gearwheels.Type: GrantFiled: March 13, 2018Date of Patent: January 9, 2024Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAPInventors: Linus Van Hove, Steven De Man
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Patent number: 11867173Abstract: [Problem] A scroll compressor is provided which is capable of effectively reducing a pressure loss in a pathway extending from a discharge space to a discharge port. [Solution] The scroll compressor includes a discharge space 27 formed in a compressing mechanism cover 9 of a housing 11, a discharge hole 26 which is formed in a fixed scroll 21 and discharges a compressed refrigerant to the discharge space, a discharge port 51 which discharges the refrigerant to the outside of the housing, a relief passage 71 which communicates the discharge space and the discharge port with each other, and a differential pressure valve 74 which is provided in the relief passage and opens in accordance with a pressure difference between the discharge space and the discharge port. The relief passage opens in the discharge space above the discharge hole.Type: GrantFiled: March 16, 2020Date of Patent: January 9, 2024Assignee: SANDEN CORPORATIONInventors: Tetsuya Imai, Taizo Sato
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Patent number: 11859633Abstract: Provided is a centrifugal fan. The centrifugal fan includes an air inlet, a shaft, and a plurality of blades. The blades are arranged around the shaft. Each of the blades includes an air guiding portion on a side of the blade facing the air inlet. The air guiding portion includes a first curve and a second curve. An air inflow channel is formed between the first curve and the second curve of two adjacent air guiding portions respectively. A width of the air inflow channel is expanded in a direction away from the air inlet according to an expanding ratio.Type: GrantFiled: July 7, 2022Date of Patent: January 2, 2024Assignee: ASUSTEK COMPUTER INC.Inventors: Hsin Chen Lin, Ing-Jer Chiou
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Patent number: 11859617Abstract: A scroll compressor includes fixed and movable scrolls forming a compression chamber, a back pressure chamber, and outer and inner oil supply mechanisms that supply oil to outer and inner chambers of the compression chamber. The inner oil supply mechanism includes an oil supply portion formed in a sliding surface of the fixed scroll to communicate with a suction region of the compression chamber and a communication port passing through the sliding surface of the movable scroll to communicate with the back pressure chamber. The communication port communicates with the oil supply portion within a predetermined period in which a center position of a suction-side end of the wrap of the movable scroll in a thickness direction is located radially outward of a center position of a space between adjacent turns of a wrap of the fixed scroll, during one rotation of the movable scroll.Type: GrantFiled: February 25, 2022Date of Patent: January 2, 2024Assignee: Daikin Industries, Ltd.Inventor: Yoshitomo Tsuka
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Patent number: 11852153Abstract: A bearing system includes a bearing housing and a foil bearing assembly. The bearing housing includes a sleeve defining a cylindrical bore, and a mounting structure for connecting the bearing system to a compressor housing. The foil bearing assembly is positioned within the cylindrical bore and includes an outer foil assembly, an inner foil assembly, and a bump foil assembly positioned between the outer and inner foil assemblies. The bump foil assembly includes a plurality of bump foils disposed circumferentially about the inner foil assembly. Each bump foil is coupled to the outer foil assembly at a respective land and spaced circumferentially from an adjacent bump foil to define a gap therebetween. The inner foil assembly includes a cylindrical inner surface defining a plurality of openings extending radially therethrough. Each opening is radially aligned with one of the lands or one of the gaps between adjacent bump foils.Type: GrantFiled: January 31, 2023Date of Patent: December 26, 2023Assignee: Copeland LPInventors: Patrick Shawn O'Meara, Michael M. Perevozchikov, Zheji Liu
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Patent number: 11846286Abstract: A scroll compressor includes fixed and movable scrolls including fixed and movable side end plates and fixed and movable side wraps. The fixed-side end plate includes a first fixed-side passage that communicates with a high-pressure space, and a second fixed-side passage to supply lubricating oil from the high-pressure space to a compression chamber formed between the scrolls. The movable-side end plate includes a movable-side groove that intermittently allows communication between the first fixed-side passage and the second fixed-side passage. The compression chamber includes a first compression chamber, and a second compression chamber located inside the first compression chamber. The second fixed-side passage includes a first fixed-side hole that intermittently communicates with the movable-side groove, and a second fixed-side hole that communicates with the first fixed-side hole and intermittently communicates with the second compression chamber.Type: GrantFiled: May 13, 2022Date of Patent: December 19, 2023Assignee: Daikin Industries, Ltd.Inventors: Eitarou Nakatani, Yasuo Mizushima, Katsumi Kato, Takeshi Endou, Akira Himeda, Yukiko Maejima
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Patent number: 11846285Abstract: The pump comprises a casing; a statoric part stationarily housed in the casing; at least one impeller arranged for rotation in the casing. A process fluid path extends though the statoric part and the impeller. A bearing rotatingly supports the impeller in the casing and a bearing lubrication path is provided, to circulate a fluid flow through the bearing. A rotary screw integral with the impeller and rotating therewith when the pump is operating provides a pumping action on process fluid such that rotation of the impeller promotes process fluid circulation by means of said rotary screw through the bearing lubrication path.Type: GrantFiled: January 14, 2020Date of Patent: December 19, 2023Assignee: Nuovo Pignone Tecnologie—S.R.LInventors: Francesco Cangioli, Matteo Berti, Alessandro Musacchio, Leonardo Tognarelli
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Patent number: 11841014Abstract: A scroll compressor is provided. In the scroll compressor, a valve accommodating groove that accommodates a discharge port and bypass holes is recessed by a predetermined depth into a rear surface of a non-orbiting scroll, and a valve guide is disposed between the rear surface of the non-orbiting scroll and a rear surface of the back pressure chamber assembly facing the rear surface of the non-orbiting scroll. Bypass valve guide holes into which bypass valves that open and close the bypass holes are slidably inserted are formed in the valve guide. Accordingly, the bypass valves that suppress or prevent overcompression in compression chambers are not fastened to a non-orbiting end plate, which may allow the non-orbiting end plate to be reduced in thickness. As the non-orbiting end plate is reduced in thickness, lengths of the bypass holes may be reduced, thereby decreasing dead volumes in the bypass holes.Type: GrantFiled: February 14, 2023Date of Patent: December 12, 2023Assignee: LG ELECTRONICS INC.Inventors: Changeol Jo, Jeonghun Kim, Nara Han, Jihoon Park
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Patent number: 11841019Abstract: A rotary piston compressor (1) for a system for temperature conditioning comprises a rotor (19) mounted in a housing (21), wherein the rotary piston compressor (1) is designed in such a way that the rotor (19) rotates in a first direction in a first operating state and rotates in a second direction opposite to the first direction in a second operating state, and wherein, in the first operating state, a first compressor connection (3) is designed to supply a heat transfer medium (17), and a second compressor connection (5) is designed to discharge the compressed heat transfer medium (17), and wherein, in the second operating state, the second compressor connection (5) is designed to supply the heat transfer medium (17), and the first compressor connection (3) is designed to discharge the compressed heat transfer medium (17).Type: GrantFiled: March 9, 2021Date of Patent: December 12, 2023Assignee: BorgWarner Inc.Inventor: Frank Dahinten
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Patent number: 11834982Abstract: Various methods and systems are provided for an electric turbocharger. In one example, the electric turbocharger includes an electric motor circumferentially surrounding a shaft, a turbine coupled to a first end of the shaft, and a compressor coupled to a second end of the shaft, opposite of the first end. The compressor may include a volute with a curved portion protruding towards the turbine.Type: GrantFiled: December 23, 2022Date of Patent: December 5, 2023Assignee: TRANSPORTATION IP HOLDINGS, LLCInventors: Christopher Homison, Louis Kobielski
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Patent number: 11828288Abstract: A pendulum pump includes a housing, a cover positioned on the housing and forming a cavity therebetween, an inner rotor and an outer rotor positioned within the cavity, wherein the inner rotor is connected via a plurality of pendulums to the outer rotor, and the pendulums are mounted to the outer rotor in an articulated manner such that a rotational eccentricity can be imparted between the inner rotor and the outer rotor to control a flow rate of the pendulum pump, and a protective plate positioned within the cavity and against a surface of one of the housing and the cover.Type: GrantFiled: January 6, 2022Date of Patent: November 28, 2023Inventors: Liviu Marinica, Mihajlo Soc, Steven Fletcher, Adam Rossetto
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Patent number: 11815093Abstract: A scroll compressor includes a motor portion fixed in an inner space of a casing, a compression portion fixed to the inner space of the casing at one side of the motor portion in an axial direction, a rotation shaft to transmit a driving force from the motor portion to the compression portion, and a flow path guide provided in a discharge space between the motor portion and the compression portion and provided with a guide outlet communicating with the discharge space and opened in a direction toward the rotation shaft. Therefore, most of refrigerant discharged to the discharge space through the flow path guide is moved toward an air gap to enhance an oil separation effect, and thus a normal operation point of the air conditioner can be accelerated.Type: GrantFiled: October 20, 2021Date of Patent: November 14, 2023Assignee: LG Electronics Inc.Inventors: Jaeha Lee, Yongkyu Choi, Minho Lee
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Patent number: 11814962Abstract: An engine comprises a housing and a combustion assembly carried by the housing. The combustion assembly comprises an annular bore defined by the housing, at least one combustion piston disposed within the annular bore, and a sealing mechanism configured to selectively seal the at least one combustion piston relative to at least one corresponding wall of the annular bore. The engine comprises at least one rotary valve configured to move between a first position within the annular bore to allow the at least one combustion piston to travel within the annular bore from a first location proximate to the at least one valve to a second location distal to the at least one rotary valve and a second position within the annular bore to define a combustion chamber relative to the at least one combustion piston at the second location.Type: GrantFiled: August 12, 2022Date of Patent: November 14, 2023Inventor: Walter T. Bonin
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Patent number: 11795947Abstract: A compressor structure includes a vane rotor and a cylinder eccentrically disposed around the vane rotor. The vane rotor has a vane impeller. The vane impeller is in tangential contact with the cylinder to define an eccentric crescent vane chamber. A vane is radially slidably received in the vane impeller. An outward extending top end of the vane tightly abuts against the inner circumferential wall of the vane chamber, whereby the vane chamber is partitioned into an intake section and a compression exhaustion section. When the vane rotor rotates, the vane is driven to drive the cylinder to complete gas compression operation. When rotating, the vane is simply swung at a fixed position of the cylinder, the friction of the compressor can be lowered. The communication of the gas outlet is regulated so that the compression ratio of the compressed gas exhausted from the compressor can be changed.Type: GrantFiled: October 13, 2021Date of Patent: October 24, 2023Assignee: CH Creative Co., Ltd.Inventor: Jui-Cheng Chang