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公开(公告)号：US12018664B2
公开(公告)日：2024-06-25
申请号：US17793263
申请日：2020-03-31
Applicant: LG ELECTRONICS INC.
Inventor： Kichul Choi , Youngpil Kim , Kiwon Noh , Eonpyo Hong
IPC: F04B39/00 , F04B35/04 , F16F15/073 , F16J1/09
CPC classification number: F04B39/0044 , F04B35/045 , F04B39/0016 , F16F15/073 , F16J1/09 , F05B2210/14 , F05B2260/964
Abstract: A compressor includes a cylinder configured to form a compressed space of the refrigerant and having a cylindrical shape, a piston configured to reciprocate axially in the cylinder and comprising a guide portion having a cylindrical shape and a head portion disposed in front of the guide portion, an intake valve disposed at a front of the head portion, a fixing member disposed outside the piston, a rod comprising one end disposed at the head portion and configured to extend axially, a first elastic member connected to the fixing member and other side of the rod, a second elastic member disposed to be spaced apart from a rear of the first elastic member and connected to the fixing member and the other side of the rod, and a first spacer insert-injected with the first elastic member and the second elastic member.
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公开(公告)号：US20180106215A1
公开(公告)日：2018-04-19
申请号：US15820240
申请日：2017-11-21
Applicant: ETAGEN, INC.
Inventor： Matt Svrcek
Abstract: The present disclosure provides an open-faced piston with a circumferential groove into which a piston ring assembly is arranged. Openings at the bottom of the circumferential groove and between a front land of the open-faced piston and the piston face are provided. The openings are arranged to allow for a combustion reaction to propagate through the volume defined between the bottom of the piston ring assembly and the piston face such that at least a portion of an air and fuel mixture located in that volume is reacted.
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公开(公告)号：US09822876B2
公开(公告)日：2017-11-21
申请号：US14478441
申请日：2014-09-05
Applicant: KANZAKI KOKYUKOKI MFG. CO., LTD.
Inventor： Tomoyuki Tsuji , Tooru Oota
CPC classification number: F16J1/08 , B60T1/062 , F01B3/0032 , F01B3/02 , F04B1/20 , F04B53/18 , F16J1/09
Abstract: A housing of an axial piston device is provided with a drain port for discharging the retained oil to the outside and a supply oil passage for guiding lubricating oil, which has been supplied from an oil source, toward a first hydraulic axial piston member. The drain port is arranged so as to bring about such a retained-oil level that a second hydraulic axial piston member, which is disposed below the first hydraulic axial piston member, is partially or entirely immersed in the retained oil while the first hydraulic axial piston member is not immersed in the retained oil.
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公开(公告)号：US09822802B2
公开(公告)日：2017-11-21
申请号：US14840780
申请日：2015-08-31
Applicant: CATERPILLAR INC.
Inventor： Cody Moore
CPC classification number: F15B1/04 , B25D9/145 , B25D2209/002 , B25D2222/57 , F16J1/09 , F16J3/02 , F16L55/045
Abstract: An accumulator membrane is disclosed. The accumulator membrane may include a generally cylindrical tube having a side wall with a first end a second end. A lip may be located at the first end, and may form a pocket with the side wall. An extension may protrude from the second end at an angle generally perpendicular to the lip and co-axial with the generally cylindrical tube.
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5.发明申请公开(公告)号：US20170321623A1
公开(公告)日：2017-11-09
申请号：US15534498
申请日：2015-06-25
Applicant: Ning Tao
Inventor： Ning Tao , Shaoping Wang
CPC classification number: F02F3/02 , F02F3/00 , F02M25/06 , F16J1/00 , F16J1/09 , F16J9/00 , Y02T10/121
Abstract: The present invention discloses an energy-saving and emission-reducing multistage throttling expansion method for engine. In a crevice passage disposed between the combustion chamber and the crankcase, a multistage throttling is disposed for converting pressure energy of the high-pressure blow-by gas into kinetic energy and momentum, and a multistage expansion is disposed for expanding and dissipating the incoming kinetic energy and momentum of the high-velocity blow-by gas into heat, so that to realize the multistage throttling and expansion method, reduce the leaking of the unburned fuel-air mixture and the burned gas, the hydrocarbon emissions hidden in the intra-cylinder carbon deposition and exhaust gas emissions of the engine, and also improve the engine efficiency and the overall performance of the engine.
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Patent Agency Ranking
公开(公告)号：US20170254293A1
公开(公告)日：2017-09-07
申请号：US15504019
申请日：2015-08-21
Applicant: HITACHI KOKI CO., LTD.
Inventor： Yosuke YOSHIZAKI , Naoto ICHIHASHI
CPC classification number: F02F3/24 , A01D34/412 , A01D34/68 , A01D34/6806 , A01D2101/00 , F02B25/14 , F02B25/16 , F02B63/02 , F02B75/02 , F02B2075/025 , F02F1/22 , F16J1/09
Abstract: The disclosure provides a two-cycle engine and an engine work machine. When a piston is located on the side of a bottom dead center, at a part corresponding to a notch part in the piston, an inner surface of the crank case protrudes toward an interior side to form a crank case first protruding part penetrating through the notch part toward the interior side. Meanwhile, the crank case at a part corresponding to a part without the notch part in the piston is not in a shape protruding toward the interior side. By assembling the piston and the crank case in such shapes, the piston is able to reciprocally move up and down without interfering with the crank case. In this case, by disposing the crank case first protruding part, the volume in the crank case is able to be reduced.
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公开(公告)号：US20170191563A1
公开(公告)日：2017-07-06
申请号：US15395147
申请日：2016-12-30
Applicant: Graco Minnesota Inc.
Inventor： Jeromy D. Horning , Christopher A. Lins , James A. Klaverkamp
CPC classification number: F16J1/09 , F04B1/0408 , F04B7/06 , F04B13/00 , F04B15/00 , F04B17/03 , F04B17/06 , F04B19/003 , F04B19/22 , F04B53/126 , F04B53/14 , F04B53/144 , F04B53/147 , F04B53/148 , F04B53/18
Abstract: A piston is the driven component within a pump. The piston is driven along a longitudinal axis to pump a fluid through the pump. The fluid flows through the piston between an upstream end of the pump and a downstream end of the pump. The piston outputs the fluid into the downstream end of the pump at a vector offset from the longitudinal axis, thereby inducing rotation of the piston throughout the pumping process. Rotating the piston encourages even wear on various components within the pump, such as sealing rings surrounding the piston, thereby increasing the lifespan of the components and increasing the efficiency of the pump.
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公开(公告)号：US20170191478A1
公开(公告)日：2017-07-06
申请号：US15395139
申请日：2016-12-30
Applicant: Graco Minnesota Inc.
Inventor： Jeromy D. Horning , Christopher A. Lins
CPC classification number: F16J1/09 , F04B1/0408 , F04B7/06 , F04B13/00 , F04B15/00 , F04B17/03 , F04B17/06 , F04B19/003 , F04B19/22 , F04B53/126 , F04B53/14 , F04B53/144 , F04B53/147 , F04B53/148 , F04B53/18
Abstract: A piston rod and piston head are the driven components within a pump. An upstream end of the piston rod is attached within an aperture of the piston head. At least one flute extends between the upstream end of the piston rod and the aperture, and the at least one flute is configured to provide a flowpath for a fluid, such as paint, to flow downstream of the piston head and piston rod. The flutes facilitate a smooth downstream flow of the fluid, thereby reducing hydraulic resistance and reducing wear caused by the fluid.
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公开(公告)号：US09303584B2
公开(公告)日：2016-04-05
申请号：US14487498
申请日：2014-09-16
Applicant: Federal-Mogul Corporation
Inventor： Michael Weinenger
CPC classification number: F02F3/00 , F02F3/20 , F02F2003/0007 , F16J1/09 , F16J1/22
Abstract: A piston assembly having a piston member and a connecting rod. The piston member has a crown portion and a lower portion bonded together with a cooling gallery formed between them. The connecting rod has a ball end which is positioned in a socket in the piston member. In one embodiment, the ball end can have two flat surfaces and be held in position by C-clips. In another embodiment, the ball end is cylindrically shaped and the socket has a corresponding shape.
Abstract translation: 具有活塞构件和连杆的活塞组件。 活塞构件具有冠部和下部，其与形成在它们之间的冷却槽结合在一起。 连杆具有位于活塞部件中的插座中的球端。 在一个实施例中，球端可以具有两个平坦表面并且通过C形夹保持就位。 在另一个实施例中，球端是圆柱形的并且插座具有相应的形状。
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公开(公告)号：US20160040622A1
公开(公告)日：2016-02-11
申请号：US14452515
申请日：2014-08-05
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Richard John Donahue
Abstract: A power cylinder system for a reciprocating engine includes a piston configured to move within a cylinder. The system includes a top-most groove extending circumferentially about the piston beneath a top land of the piston and configured to support a top ring having an inner circumferential face. A space is defined between a portion of the top-most groove and the inner circumferential face of the top ring while the top ring is positioned within top-most groove, and one or more channels formed in the top land are configured to enable transfer of combustion gases to the space. The system also includes a bottom-most groove extending circumferentially about the piston and spaced apart from the top-most groove along an axial axis of the piston, and the bottom groove is configured to support a bottom ring and is devoid of oil drains.
Abstract translation: 用于往复式发动机的动力缸系统包括构造成在气缸内移动的活塞。 该系统包括在活塞的顶部平台下方围绕活塞周向延伸的顶部槽，并且构造成支撑具有内圆周面的顶环。 当顶环位于最上面的凹槽内时，最顶部凹槽的一部分和顶环的内圆周面之间形成空间，并且在顶部凹槽中形成的一个或多个通道构造成能够传递 燃烧气体到空间。 该系统还包括沿着活塞周向延伸并且沿着活塞的轴向轴线与最顶部凹槽间隔开的最底部凹槽，并且底部凹槽构造成支撑底部环并且没有排出油。
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