-
公开(公告)号：US12104552B2
公开(公告)日：2024-10-01
申请号：US17393355
申请日：2021-08-03
IPC分类号： F02G1/043 , F02B75/18 , F02F3/00 , F02G1/044 , F02G1/055 , F16H21/12 , F16H21/34 , F16H35/18 , F25B9/14
CPC分类号： F02G1/043 , F02B75/18 , F02B75/1896 , F02F3/0023 , F02G1/0435 , F02G1/0445 , F02G1/055 , F16H21/12 , F16H21/34 , F16H35/18 , F25B9/14 , F02B2075/1808 , F02G2244/08 , F02G2253/08 , F02G2253/80 , F02G2254/10 , F02G2255/00 , F02G2257/00 , F02G2270/005 , F02G2270/85 , Y02W10/37 , Y10T74/18392
摘要： A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase. A burner and burner control system is also included for heating the machine and controlling ignition and combustion in the burner.
-
公开(公告)号：US12078122B2
公开(公告)日：2024-09-03
申请号：US17969629
申请日：2022-10-19
摘要： A power cylinder system for a reciprocating engine includes a piston configured to move within a cylinder of the reciprocating engine. The system also includes a groove extending circumferentially about the piston and configured to support a ring. An axially-facing surface of the groove has circumferential undulations at ambient temperatures that are configured to compensate for distortions to the groove caused by operation of the reciprocating engine.
-
公开(公告)号：US12044312B2
公开(公告)日：2024-07-23
申请号：US17789273
申请日：2020-12-16
发明人： Volker Abraham
CPC分类号： F16J1/08 , F02F3/0069 , F02F3/22
摘要： The present invention refers to a piston for an internal combustion engine, particularly a V-engine. The piston comprises an oil drainage groove provided in the outer circumferential surface of the piston between a ring belt and a piston skirt of the piston, the piston skirt being provided with two recessed pin boss portions on opposed sides of the piston, wherein the piston skirt is further provided with at least one oil drainage duct arranged between the two recessed pin boss portions at an outer surface of the piston skirt and configured to fluid-communicatively connect the oil drainage groove with the recessed pin boss portions.
-
公开(公告)号：US11873779B2
公开(公告)日：2024-01-16
申请号：US17911062
申请日：2021-02-22
申请人： MAN Truck & Bus SE
发明人： Jochen Cypris
摘要： A reciprocating combustion engine includes at least one cylinder, in which a reciprocating piston is arranged back and forth movable. The reciprocating combustion engine includes a pin structure arranged on the combustion chamber side in the area of the cylinder head or the piston bottom. Due to the pin structure, local peak temperatures can be avoided during the combustion process, so that NOx emissions can be avoided or at least greatly reduced. A motor vehicle, for example a commercial vehicle, includes a reciprocating combustion engine.
-
公开(公告)号：US20230383693A1
公开(公告)日：2023-11-30
申请号：US18245581
申请日：2021-09-16
申请人： Carnot Ltd.
发明人： Archie WATTS-FARMER , Duncan DUNBAR , Bo GORANSSON
CPC分类号： F02B75/282 , F02F3/0084 , F02F3/18 , F02F1/186
摘要： A piston arrangement (12) for an internal combustion engine (10) comprises one or more pistons (14) which are at least partly constructed from a technical ceramic material. An axially disposed bore (20) for receiving a heat transfer member (22) is provided in at least one of the pistons (14). The heat transfer member (22) is reconfigurable from a first, solid, state to a second state in which at least part of the heat transfer member (22) is in a liquid state so as to transfer heat away from and thus cool the piston rod (16) as the piston reciprocates. A cylinder arrangement (46) for the internal combustion engine (10) comprises one or more cylinders (48) which are at least partly constructed from a technical ceramic material. One or more grooves (54) are formed in the cylinder (48), to decrease the thermal gradient between the inside and outside of the cylinder (48). A piston (14) for the internal combustion engine (10) comprises a piston rod (16) and a piston crown (18) which is at least partly constructed from a technical ceramic material. An insulation arrangement (40) between the piston rod (16) and the piston crown (18) comprises segments (42) configured such that when disposed on the piston rod (16) axial slots or spaces are defined between the segments (42).
-
公开(公告)号：US20230235714A1
公开(公告)日：2023-07-27
申请号：US17581391
申请日：2022-01-21
申请人： Tenneco Inc.
发明人： Warran Lineton , Greg Salenbien
摘要： A steel piston with an engineered coating is provided. A high thermal conductivity material, for example copper, is disposed on first regions of a combustion bowl to reduce hot spots in the piston. A low thermal conductivity material, for example a ceramic, is disposed on second regions of the combustion bowl to reduce loss of heat through the piston. The high thermal conductivity material disposed on the combustion bowl has a surface roughness (Ra) of less than 5 μm to help reflect IR radiation and promote fuel flow. The low thermal conductivity material disposed on the combustion bowl has a surface roughness (Ra) of less than 3 μm to promote fuel flow. The low thermal conductivity material is also disposed on the bowl rim and top ring land, and has a surface roughness (Ra) of greater than 8 μm on the bowl rim and top ring land to retard gas flow.
-
公开(公告)号：US11649749B2
公开(公告)日：2023-05-16
申请号：US17738073
申请日：2022-05-06
申请人： Lewis P. Bell, Jr.
发明人： Lewis P. Bell, Jr.
CPC分类号： F01M13/023 , F01M13/04 , F02M35/10222 , F01M2013/0433 , F01M2250/00
摘要： An apparatus that improves the gas mileage of an internal combustion engine in a vehicle is disclosed that is comprised of an air inlet, a condensation chamber, and an air outlet that is connected to the vehicle's oil system through an oil filler port in the engine of the vehicle.
-
公开(公告)号：US11624338B2
公开(公告)日：2023-04-11
申请号：US17628344
申请日：2021-01-19
摘要： A sliding mechanism of the present invention includes a cylinder bore having a thermally sprayed iron-based coating and includes a piston with a piston ring covered with a hard coating composed mainly of carbon.
The thermally sprayed coating has diamond abrasive grains.
An area ratio of the diamond abrasive grains to a surface of the thermally sprayed coating is 0.3 to 1.8%, which enables suppressing wear of the piston ring having the hard coating composed mainly of carbon.-
公开(公告)号：US20230058375A1
公开(公告)日：2023-02-23
申请号：US17796042
申请日：2021-01-29
申请人： Intelline Inc.
摘要： Linear generators with a piston having a valve are described herein. The linear generator includes a combustion module and at least one linear motor. The linear motor includes at least one piston having: a piston head with an opening therein; a piston skirt opposed to the piston head; a piston side wall extending between the piston head and the piston skirt, the piston side wall having at least one port therein. The piston also includes a valve mechanism movable relative to each of the piston head, the piston seat and the piston side wall. The valve mechanism includes a valve stem extending through the piston skirt and the interior piston volume into a mover shaft of the motor, and a valve head coupled to the valve stem and configured to cover the opening of the piston head.
-
公开(公告)号：US11585289B2
公开(公告)日：2023-02-21
申请号：US17290081
申请日：2018-11-02
发明人： Tsuyoshi Higuchi , Akinobu Itou , Hayato Hirayama
摘要： A sprayed coating for a sliding member of the present invention includes a ferrous alloy containing chromium (Cr).
The sprayed coating for the sliding member has the content rate of the chromium of 8 mass % or more, includes a structure that comprises crystal grains contained in the sprayed coating and having an average grain size of 3 μm or less, has a Vickers hardness of 300 Hv or more, and then is excellent at abrasion resistance.
-
-
-
-
-
-
-
-
-
搜索结果
2195 条记录 (耗时 0.03 秒)
