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公开(公告)号：US20240360829A1
公开(公告)日：2024-10-31
申请号：US18579747
申请日：2022-07-20
发明人： Artur BOHR , Thomas PIPPES
摘要： The invention relates to an internal gear machine (10) having a housing (12) which forms a cavity (14) in which an internally toothed ring gear (18) and an externally toothed pinion (16) are arranged, the toothings (24, 26) of which are in meshing engagement with one another in certain regions and the axes of rotation (20, 22) of which run parallel to and spaced apart from one another, wherein at least one filler piece (30, 30′) rests against the first and second toothings (24, 26), which divides the cavity (14) into two fluidically separate regions. It is provided that the toothing (24, 26) is designed as helical toothing or arrow toothing.
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公开(公告)号：US20240352933A1
公开(公告)日：2024-10-24
申请号：US18682833
申请日：2022-08-05
发明人： DO JAE JOO , SEONG WOOK CHA , GAHYEON YI , HUI DO RYU
CPC分类号： F04C15/0065 , F04C2/10 , F04C2210/206 , F04C2240/30
摘要： Disclosed is an oil pump including: a pump module provided with a rotary shaft, an inner rotor coupling with the rotary shaft, an outer rotor rotated engaging with the inner rotor, an inlet for sucking fluid, and an outlet for pressing and discharging the sucked fluid; housings supporting the pump module; and a direction switching unit coupled between the housings and the outer rotor to keep an eccentric distance between the rotary shaft or a central axis line of the inner rotor and a central axis line of the outer rotor. According to the disclosure, there is provided an oil pump used for both forward rotation and reverse rotation, which does not require changing a suction area and a discharge area and direction switching is stably performed even when a power source rotates forwardly and reversely.
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公开(公告)号：US12117002B2
公开(公告)日：2024-10-15
申请号：US18149973
申请日：2023-01-04
申请人： LG Electronics Inc.
发明人： Honghee Park , Jaesang Lee , Byeonghun Yu , Sooho Jang
CPC分类号： F04C2/025 , F04C15/0088 , F04C29/023 , F04C23/008 , F04C2240/603
摘要： A scroll compressor is disclosed. The scroll compressor may include an oil supply hole penetrating from an oil passage to an outer circumferential surface of a rotating shaft, and an oil supply groove communicating with the oil supply hole and formed along the outer circumferential surface of the rotating shaft. The oil supply groove may be provided in plurality axially spaced apart by a preset distance. This can prevent the oil supply groove from invading an oil film section and increase centrifugal force against oil in the oil supply groove, thereby suppressing friction loss and wear between a main frame and the rotating shaft.
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4.发明公开公开(公告)号：US20240309867A1
公开(公告)日：2024-09-19
申请号：US18576264
申请日：2021-12-20
CPC分类号： F04C2/101 , F04C15/0023 , F04C2240/54 , F04C2240/56
摘要： An example gear pump includes a pump ring gear; a pump shaft; a pump pinion mounted to the pump shaft and disposed within the pump ring gear, such that external teeth of the pump pinion engage with internal teeth of the pump ring gear, wherein the pump shaft is configured to rotate the pump pinion, thereby rotating the pump ring gear engaged therewith to displace fluid from an inlet chamber to an outlet chamber; one or more cross-holes; a bushing disposed about the pump shaft; and a pocket formed about a portion of the bushing, wherein the one or more cross-holes fluidly couple the outlet chamber to the pocket, thereby causing fluid in the pocket to apply a supporting force to the pump shaft.
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公开(公告)号：US12049891B2
公开(公告)日：2024-07-30
申请号：US17628784
申请日：2020-07-22
申请人： Edwards Limited
IPC分类号： F03C2/00 , F03C4/00 , F04C2/00 , F04C2/02 , F04C15/00 , F04C18/00 , F04C18/02 , F04C27/00 , F04C23/00
CPC分类号： F04C18/0215 , F04C2/025 , F04C15/0023 , F04C27/005 , F04C23/008 , F04C2240/801 , F05C2225/04
摘要： A scroll pump (100, 200) comprising a first scroll comprising a first spiral wall (124, 224); a second scroll comprising a second spiral wall (134, 234), the second spiral wall being intermeshed with the first spiral wall; and a pad (180, 280) formed from a different material to the first and second scrolls, the pad being located between the first and second scrolls radially inwards or outwards of the first and second spiral walls.
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公开(公告)号：US12038006B2
公开(公告)日：2024-07-16
申请号：US17694669
申请日：2022-03-15
发明人： Nan Wu , Tomohiro Sakata , Nguyen Thi Thanh Tam
CPC分类号： F04C2/102 , F04C2/10 , F04C15/06 , F01C21/10 , F04C2/084 , F04C2/086 , F04C11/008 , F04C15/00 , F04C15/0026 , F04C15/0061 , F04C2240/20 , F04C2240/30 , F04C2240/40 , F04C2240/60 , F04C2250/10
摘要： An electric pump includes a motor unit rotationally driving a drive shaft, and a pump unit. The pump unit includes a pump rotor that sends the fluid by a driving force of the driving shaft, and a pump housing that surrounds at least one side of the pump rotor. The pump housing includes an attachment surface extending in the axial direction and in contact with an attached body, first and second flow paths respectively on the suction side and the discharge side, and a fixing location within the attachment surface and fixed to the attached body by a fixing member within a maximum outer shape of the motor housing as viewed in the axial direction. Opening locations of the first and second flow paths are displaced from each other in the axial direction on the attachment surface.
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公开(公告)号：US12031629B2
公开(公告)日：2024-07-09
申请号：US17546686
申请日：2021-12-09
发明人： Uwe Meinig
CPC分类号： F16J15/0818 , F01C21/108 , F04C2/3446 , F04C15/0023 , F04C15/0034 , F04C15/06 , F16J15/024 , F16J15/0825 , F16J15/0831 , F04C2240/30
摘要： A bead gasket for sealing off a gap between a first component and a second component, the bead gasket including: a first gasket layer including a holding element; a second gasket layer comprising a complementary holding element; and one or more folding portions which connect(s) the first gasket layer and the second gasket layer, wherein the first gasket layer, the second gasket layer and the respective folding portion are formed in one piece, and the gasket layers are or can be folded one onto the other by folding over the respective folding portion, such that they face each other in an axial direction, and wherein the holding element and the complementary holding element are in or can be moved into a holding engagement with each other based on a positive fit and/or frictional fit, in order to secure the gasket layers against diverging from each other.
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公开(公告)号：US20240191625A1
公开(公告)日：2024-06-13
申请号：US18582521
申请日：2024-02-20
申请人： Herbert Dym
发明人： Herbert Dym
CPC分类号： F01C1/067 , F01C21/08 , F01C21/0845 , F04C2/3442 , F04C15/0061
摘要： A hydraulic device comprises a rotary toroidal piston chamber having a rectangular space with a bottom, two sidewalls, and an open top. Four stationary pistons and two retractable gates for each piston are within the toroidal chamber mounted on a chamber wheel fixed to an axle on which it rotates, wherein the pistons and the gates are evenly spaced around the toroidal chamber separating the chamber into four partitions. A piston support for each piston is configured to hold the piston stationary while the piston chamber rotates. A stationary cover encircles and seals the open top of the piston chamber wherein openings through the stationary cover allow each of the piston supports to pass through and be sealed. An input port opening and an output port opening are in the stationary cover for each partition. The piston chamber rotates by reacting directly to continuous hydraulic force on the stationary pistons.
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公开(公告)号：US11990819B2
公开(公告)日：2024-05-21
申请号：US17103191
申请日：2020-11-24
IPC分类号： H02K5/20 , F04B53/08 , F04C2/10 , H02K9/19 , F04C2/08 , F04C11/00 , F04C15/00 , F04D13/06 , F04D25/08 , F04D29/58
CPC分类号： H02K5/20 , F04B53/08 , F04C2/102 , H02K9/19 , F04C2/084 , F04C11/008 , F04C15/0096 , F04C2240/30 , F04C2240/40 , F04D13/06 , F04D25/082 , F04D29/5806
摘要： An electric and hydraulic machine includes a housing defining a motor chamber and a pump chamber, a motor comprising a rotor and a stator positioned within the motor chamber, and a pump comprising a pumping element positioned within the pump chamber, the pumping element movable by the motor to displace fluid in the pump chamber. The pump chamber includes a low-pressure chamber and a high-pressure chamber, a unit inlet defined by the housing and in communication with the low-pressure chamber, and a unit outlet defined by the housing and in communication with the high-pressure chamber. The pump chamber is positioned radially inward of the motor chamber such that the pump is nested within the motor. A radial cooling channel extends in a radial direction from the low-pressure chamber to the motor chamber such that fluid in the pump chamber communicates with the rotor and the stator to cool the motor.
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公开(公告)号：US11976654B1
公开(公告)日：2024-05-07
申请号：US18277473
申请日：2022-02-24
CPC分类号： F04C18/0215 , F04C27/005 , F04C29/005 , F04C23/008
摘要： A collar of a fixed scroll includes a gasket contact surface with which a gasket comes into contact, and a metal contact surface that causes the collar and a compression housing to be in contact and receives the axial force of bolts. The collar has a protruding portion that protrudes in the axial direction relative to the gasket contact surface, and the metal contact surface is disposed on the protruding portion.
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