公开(公告)号：US12000332B2

公开(公告)日：2024-06-04

申请号：US18081192

申请日：2022-12-14

申请人： Matthew Jackson ,  Dimitrios Dardalis

发明人： Matthew Jackson ,  Dimitrios Dardalis

IPC分类号： F02B75/32 ,  F01L1/04 ,  F01M9/06 ,  F01P3/12 ,  F02B37/00 ,  F02B75/00 ,  F02B75/02 ,  F02B75/18 ,  F02B75/24 ,  F02B75/26 ,  F02B75/28 ,  F02D17/02 ,  F02F3/28

CPC分类号： F02B75/32 ,  F01L1/04 ,  F01M9/06 ,  F01P3/12 ,  F02B37/00 ,  F02B75/005 ,  F02B75/02 ,  F02B75/18 ,  F02B75/24 ,  F02B75/26 ,  F02B75/282 ,  F02D17/02 ,  F02F3/28 ,  F02B2075/025 ,  F02B2075/027 ,  F02B2075/1836

摘要： This invention has two main embodiments. An opposed piston 2-stroke axial engine and a 4-stroke axial engine. The opposed piston two stroke also offers an option of a novel cylinder deactivation design. Both, two stroke and four stroke engines share novel systems for coupling piston reciprocation to shaft rotation, piston and piston ring lubricant distribution, and provision for reacting out piston side load with minimum mechanical friction.

公开(公告)号：US11821425B2

公开(公告)日：2023-11-21

申请号：US17719208

申请日：2022-04-12

申请人： KAWASAKI MOTORS, LTD.

发明人： Takahiro Yano

IPC分类号： F04C2/10 ,  F02B75/00 ,  F01M1/02

CPC分类号： F04C2/10 ,  F02B75/007 ,  F04C2/102 ,  F01M2001/0238 ,  F01M2001/0284 ,  F04C2210/206 ,  F04C2240/20 ,  F04C2240/30 ,  F04C2240/60

摘要： A pump shaft support structure includes: a crankcase body which rotatably supports a crankshaft of an engine; a pump shaft which interlockingly rotates with the crankshaft; a crankcase cover which covers the crankcase body; a pump cover which is coupled to the crankcase cover to define a pump chamber therebetween; and a pump rotor which is disposed in the pump chamber and engages with the pump shaft. The pump shaft includes: a supported section which is rotatably supported by the pump cover on the other side of the pump chamber from the crankcase cover; and an insertion section adjoining the supported section in an axial direction. The pump cover has a through bore which passes the insertion section of the pump shaft therethrough. The insertion section of the pump shaft has a diameter smaller than that of the supported section.

公开(公告)号：US20230323807A1

公开(公告)日：2023-10-12

申请号：US18334443

申请日：2023-06-14

申请人： Sky Moon Huddleston

发明人： Sky Moon Huddleston

IPC分类号： F02B75/00 ,  F02B75/02

CPC分类号： F02B75/002 ,  F02B2075/025 ,  F02B2075/027 ,  F02B75/02

摘要： The present invention relates to a two strokes per cycle Scotch Yoke engine that completes four power strokes per revolution per pair of pistons/cylinders by using both sides of each piston as a combustion chamber. This doubles the power to weight ratio over previous scotch yoke engines and quadruples the power to weight ratio over conventional 4 stroke cycle engines. The present invention is capable of operating in and withstanding the forces of either deflagration (subsonic) and pulse detonation (supersonic) cycles, and is capable of homogeneous charge compression ignition. The present invention can also be an internal/external combustion gas/steam hybrid. The present invention can operate under constant volume or constant pressure cycles as well as most thermal cycles of operation (EG the Otto and Diesel cycle). The present invention works best when using a modified Humphrey cycle to achieve homogeneous charge compression ignition pulse detonation engine using constant volume combustion.

公开(公告)号：US20230243297A1

公开(公告)日：2023-08-03

申请号：US18081192

申请日：2022-12-14

申请人： Matthew Jackson ,  Dimitrios Dardalis

发明人： Matthew Jackson ,  Dimitrios Dardalis

IPC分类号： F02B75/32 ,  F02B75/02 ,  F01P3/12 ,  F02F3/28 ,  F01M9/06 ,  F02B37/00 ,  F02B75/26 ,  F02B75/00 ,  F02B75/18 ,  F01L1/04 ,  F02B75/28 ,  F02B75/24 ,  F02D17/02

CPC分类号： F02B75/32 ,  F02B75/02 ,  F01P3/12 ,  F02F3/28 ,  F01M9/06 ,  F02B37/00 ,  F02B75/26 ,  F02B75/005 ,  F02B75/18 ,  F01L1/04 ,  F02B75/282 ,  F02B75/24 ,  F02D17/02 ,  F02B2075/025 ,  F02B2075/027 ,  F02B2075/1836

摘要： This invention has two main embodiments. An opposed piston 2-stroke axial engine and a 4-stroke axial engine. The opposed piston two stroke also offers an option of a novel cylinder deactivation design. Both, two stroke and four stroke engines share novel systems for coupling piston reciprocation to shaft rotation, piston and piston ring lubricant distribution, and provision for reacting out piston side load with minimum mechanical friction

公开(公告)号：US20220275769A1

公开(公告)日：2022-09-01

申请号：US17748689

申请日：2022-05-19

申请人： Briggs & Stratton, LLC

发明人： Ryan A. Sullivan ,  Gary S. Johnson

IPC分类号： F02F7/00 ,  F01P5/02 ,  F01P1/02 ,  F01P11/12 ,  F01P1/00 ,  F01P5/04 ,  F02B75/00 ,  F02B75/22

摘要： An air-cooled internal combustion engine including a crankshaft rotating about a crankshaft axis, a first cylinder having a first cylinder head, a second cylinder having a second cylinder head, and a blower assembly. The blower assembly includes a blower housing, a first fan, and a second fan. The first fan is positioned proximate the first cylinder and the second fan is positioned proximate the second cylinder. The first fan and the second fan are each received within the blower housing.

公开(公告)号：US20220228517A1

公开(公告)日：2022-07-21

申请号：US17712285

申请日：2022-04-04

申请人： Briggs & Stratton, LLC

发明人： Adam J. Hellman ,  John Schneiker ,  Tim Kwiatkowski ,  Casey Groh ,  Robert Price ,  Ryan Sullivan ,  Gary Johnson

IPC分类号： F01M1/10 ,  F02B75/00 ,  F01M11/00 ,  F01M11/03 ,  F01M11/12 ,  F16N19/00 ,  A01D69/00 ,  F01M1/12 ,  F02F7/00

摘要： An engine assembly includes a small air-cooled engine and a dry sump lubrication system including an external oil reservoir, wherein the dry sump lubrication system has an overall oil capacity that provides at least five hundred hours of engine oil life.

公开(公告)号：US11346219B2

公开(公告)日：2022-05-31

申请号：US16588066

申请日：2019-09-30

申请人： Aquarius Engines (A.M.) Ltd.

发明人： Shaul Haim Yaakoby

IPC分类号： F01B11/00 ,  F02B71/04 ,  F02B71/00 ,  F02B75/00 ,  F02F1/00 ,  F02F1/06 ,  F02F1/24 ,  F02F1/22 ,  F02F3/00 ,  F02F3/28 ,  F16J1/12 ,  F16J1/00 ,  F16J9/20 ,  F16J9/06 ,  F16J9/12 ,  F16J7/00 ,  F02M35/10 ,  F02M61/14 ,  F01L7/02 ,  F01N13/10 ,  F02B3/06 ,  F01N3/26 ,  F02B75/30 ,  F02B1/04 ,  F01B7/20

摘要： An internal combustion may include a cylinder having a first combustion chamber at one end and a second combustion chamber at an opposing end, first and second cylinder heads located at an end of the first and second combustion chambers, respectively, and a double-faced piston slidably mounted within the cylinder. The piston may be configured to move in the cylinder in a work stroke from one end to another. The work stroke may include an expansion stroke portion and a non-expansion stroke portion. The non-expansion stroke portion may include a momentum stroke portion, and a compression stroke portion. The engine may further include first and second piston rod portions extending from opposite faces of the piston. Passageways in the piston rod portions may be configured to communicate gases between a combustion chamber and other locations.

公开(公告)号：US11248521B1

公开(公告)日：2022-02-15

申请号：US16998771

申请日：2020-08-20

申请人： Ibrahim Hanna

发明人： Ibrahim Hanna

IPC分类号： F02B9/00 ,  F02B75/00 ,  F02F1/18 ,  F02B19/16 ,  F02B75/04 ,  F02F3/04 ,  F15B15/14 ,  F15B15/20

摘要： Implementations are disclosed herein that relate to a cylinder occupying structure. An example provides a cylinder system comprising a mechanical cylinder including an internal space in which a fluid is introduced, and a piston configured for reciprocating motion in the internal space, and a cylinder occupying structure including an insertion rod acting as a second piston, wherein the insertion rod is variably inserted into, and retracted from, the internal space of the cylinder in correspondence with the reciprocating motion of the piston and where parts of the insertion rod and the piston may surround the combustion space, and where fluid compression and fluid combustion is conducted within separate spaces.

公开(公告)号：US20210180507A1

公开(公告)日：2021-06-17

申请号：US16758918

申请日：2018-10-26

申请人： Richard Caldwell

发明人： Richard Caldwell

IPC分类号： F02B3/06 ,  F02B75/00

摘要： A multi-stage combustion engine includes: a pre-compression cylinder including a pre-compression piston operating therein; a combustion cylinder including a combustion piston operating therein. An operating rate of the pre-compression piston is less than an operating rate of the combustion piston.

公开(公告)号：US10968742B2

公开(公告)日：2021-04-06

申请号：US16884266

申请日：2020-05-27

申请人： Aquarius Engines (A.M.) Ltd.

发明人： Shaul Haim Yaakoby

IPC分类号： F01B11/00 ,  F02F3/00 ,  F02F1/22 ,  F16J7/00 ,  F02B75/00 ,  F02B71/00 ,  F16J1/12 ,  F16J9/12 ,  F16J1/00 ,  F16J9/20 ,  F02B71/04 ,  F01N13/10 ,  F02F1/00 ,  F02F1/06 ,  F02F1/24 ,  F02M35/10 ,  F02M61/14 ,  F01L7/02 ,  F02F3/28 ,  F16J9/06 ,  F02B3/06 ,  F01N3/26 ,  F02B75/30 ,  F02B1/04 ,  F01B7/20

摘要： An internal combustion may include a cylinder having a first combustion chamber at one end and a second combustion chamber at an opposing end, first and second cylinder heads located at an end of the first and second combustion chambers, respectively, and a double-faced piston slidably mounted within the cylinder. The piston may be configured to move in the cylinder in a first stroke from one end to another. The first stroke may include an expansion stroke portion and a non-expansion stroke portion. The non-expansion stroke portion may include a momentum stroke portion. The non-expansion stroke portion may include a scavenging phase. The engine may further include first and second piston rod portions extending from opposite faces of the piston. Passageways in the piston rod portions may be configured to communicate gases between a combustion chamber and other locations.