公开(公告)号：US11305641B2

公开(公告)日：2022-04-19

申请号：US16987633

申请日：2020-08-07

Applicant: YANMAR POWER TECHNOLOGY CO., LTD.

Inventor： Kohei Okazaki ,  Umpei Nonaka ,  Takeshi Takaira

IPC: B60K13/02 ,  F01P1/06 ,  F01P5/06 ,  F02B77/13 ,  E02F9/00 ,  E02F9/08 ,  B60K11/06 ,  B60K1/00

Abstract: A construction machine in which an electrical unit can be reliably cooled at low cost by effectively utilizing an intake pipe connected to an intake port of an engine. This construction machine includes: an engine; and a hood covering the engine, wherein a space inside the hood has a placement space in which an electrical unit is placed and which communicates with outside air, and a distal-end opening of an intake pipe connected to an inlet port of the engine is disposed in the placement space to cause outside air sucked into the intake pipe due to a suction pressure occurred in the intake pipe to pass through the placement space to form a cooling air path in the placement space.

公开(公告)号：US11215106B2

公开(公告)日：2022-01-04

申请号：US16939450

申请日：2020-07-27

Applicant: SUBARU CORPORATION

Inventor： Takeshi Oikawa

IPC: F01P1/06 ,  F02B77/11 ,  F02M35/10 ,  B60K11/08 ,  B60K11/06

Abstract: A cooling device includes a surrounding member, an air inlet, an air outlet, and a flow-path-formation mechanism. The surrounding member is configured to surround an engine. The air inlet is formed in the surrounding member. The air outlet is formed in the surrounding member and is to be coupled to an intake pipe of the engine. The flow-path-formation mechanism is configured to form a flow path that allows outside air to circulate to the air outlet from the air inlet when a temperature of the engine or a temperature inside the surrounding member is greater than or equal to a predetermined temperature.

公开(公告)号：US20210404378A1

公开(公告)日：2021-12-30

申请号：US17360298

申请日：2021-06-28

Applicant: Cummins Power Generation Inc.

Inventor： Shashikant Ramdas More

IPC: F02B63/04 ,  F01P1/06

Abstract: A genset enclosure includes a frame system, a plurality of side panels, a plurality of roof panels, a first connector, and a second connector. The frame system includes a plurality of interconnected frame members. The plurality of side panels are coupled to opposing sides of the frame system. The plurality of roof panels are coupled to a roof of the frame system and extend between the opposing sides of the frame system. The plurality of roof panels are oriented perpendicular to the plurality of side panels. The frame system, the plurality of side panels, and the plurality of roof panels together define an enclosure portion having a first open end and a second open end. The first connector and second connector are engageable with one another and are coupled to the frame system along a perimeter of the first open end and the second open end, respectively.

公开(公告)号：US11203968B2

公开(公告)日：2021-12-21

申请号：US15498072

申请日：2017-04-26

Applicant: Illinois Tool Works Inc.

Inventor： Nathan Joe Jochman

IPC: F02B63/00 ,  F01P1/06 ,  F01P1/02 ,  F02B67/06 ,  F02B63/04 ,  B23K9/32 ,  F04C18/16 ,  F04C29/00 ,  H02K7/10 ,  H02K7/108 ,  H02K7/18 ,  F01N13/00 ,  F02B63/06 ,  F02M35/10 ,  B23K9/10

Abstract: Systems are disclosed for power systems and enclosures having an improved compressor drive. In examples, a power system includes a generator to be driven by an engine. The generator is coupled to the engine on a first side of the generator and has a clutch extending from a second side of the generator opposite the engine. The clutch is coupled to the engine. A compressor is positioned at the second side of the generator opposite from the engine. The compressor comprising a shaft extending toward the generator and configured to be driven by the clutch.

公开(公告)号：US11199115B2

公开(公告)日：2021-12-14

申请号：US17271458

申请日：2018-08-30

Applicant: VOLVO TRUCK CORPORATION

Inventor： Fabian Hellemann

IPC: F01P1/06 ,  F01M1/02 ,  F01M11/00 ,  F01M5/00 ,  F01M11/02

Abstract: The invention relates to an oil system (7) comprising a pump arrangement (11); a first gallery (13) for providing oil to a first engine site (14); a second gallery (15) for providing oil to a second engine site (16); a second gallery flow control device (25) for controlling flow of oil from the pump arrangement (11) to the second gallery (15); control circuitry (5); a first pressure sensor (27) for sensing the oil pressure in the first gallery (13); and a second pressure sensor (29) for sensing the oil pressure in the second gallery (15). The oil system (7) is controllable between: a first state in which the control circuitry (5) controls the second gallery flow control device (25) to an open state, and controls an oil pressure in the second gallery (15) by controlling the pump arrangement (11); and a second state in which the control circuitry (5) controls an oil pressure in the first gallery (13) by controlling the pump arrangement (11), and controls the oil pressure in the second gallery (15) by controlling the second gallery flow control device (25).

公开(公告)号：US11149623B2

公开(公告)日：2021-10-19

申请号：US15756872

申请日：2016-09-01

Applicant: TERRESTRIAL ENERGY INC.

Inventor： John Kutsch ,  David Leblanc

IPC: F01P1/06 ,  F01D15/08 ,  G21C15/243 ,  F04D13/02 ,  F04D13/04 ,  F04D29/58 ,  G21C1/22 ,  G21C3/54 ,  F04D7/06 ,  F01D1/36

Abstract: A pneumatic motor assembly that includes a pneumatic motor, which is driven by a compressed gas. The pneumatic motor assembly has a magnet assembly that magnetically couples the pneumatic motor assembly to an implement. After having being used to drive a pneumatic motor, the gas, which has expanded and become colder, cools the magnet assembly The pneumatic motor assembly can thus enable the use to the implement at temperatures at which the magnet assembly would otherwise reach or exceed the maximum operating temperature of the magnet assembly. A flow induction system that includes the pneumatic motor assembly. A method of operating a pneumatic motor assembly that also cools a magnet assembly that is part of the pneumatic motor assembly.

公开(公告)号：US11125139B2

公开(公告)日：2021-09-21

申请号：US16342315

申请日：2017-10-19

Applicant: CUMMINS INC.

Inventor： Timothy C. Ernst ,  Christopher R. Nelson ,  Jared Carpenter Delahanty

IPC: F01P1/06 ,  F25B27/02 ,  F02G5/02 ,  F01K7/18 ,  F01K7/38 ,  F01K23/06 ,  F01P5/02 ,  F01P7/02

Abstract: An engine cooling system comprises an engine cooling circuit, comprising a first pump structured to circulate engine coolant fluid therethrough. A remote coolant radiator positioned along the engine cooling circuit downstream of the engine and outside of a vehicle cooling package area is structured to transfer heat from the engine coolant fluid to air. A coolant heat exchanger is positioned along the engine cooling circuit in parallel to the remote coolant radiator. A waste heat recovery system comprises a working fluid circuit comprising a second pump. The coolant heat exchanger is positioned along the working fluid circuit and is structured to transfer heat from the engine coolant fluid to the working fluid. An expander is structured to convert energy from the heat transferred to the working fluid from the engine cooling fluid to mechanical energy. A condenser positioned downstream of the expander is structured to cool the working fluid.

公开(公告)号：US10814717B2

公开(公告)日：2020-10-27

申请号：US15740391

申请日：2016-07-07

Applicant: DENSO CORPORATION

Inventor： Shingo Okugawa ,  Ken Mutou ,  Akihiro Maeda ,  Tomomi Okuyama

IPC: B60K11/08 ,  B60K11/04 ,  F01P5/02 ,  F01P11/10 ,  F01P1/06 ,  F01P3/18 ,  F01P5/04 ,  F01P1/00 ,  F01P5/06

Abstract: An air guiding unit has a shroud having a vent hole, an air guiding duct, and a valve housed in the air guiding duct. A radiator, an engine cooling heat exchanger, and a blower are fixed to the shroud. The shroud guides an air flowing into an engine room from an engine room opening and passing through the radiator and the engine cooling heat exchanger. The air guiding duct has a first opening, which is connected to the vent hole of the shroud, and a second opening, which is open in the engine room toward a rear space defined on a rear side of the engine. The air guiding duct therein has a duct interior channel through which the air flows between the first opening and the second opening. The valve is configured to increase and decrease an opening degree of the duct interior channel.

公开(公告)号：US10718243B2

公开(公告)日：2020-07-21

申请号：US15551039

申请日：2016-01-29

Applicant: Hitachi Koki Co., Ltd.

Inventor： Naoto Ichihashi ,  Youhei Kinugawa

IPC: F01N3/05 ,  F01P5/06 ,  F01P1/06 ,  F01P5/02 ,  F01N3/28 ,  F01N13/18 ,  F02B63/02 ,  F01N1/08 ,  F01N13/10 ,  F01N1/14 ,  F01N3/06 ,  F01P1/02 ,  F01P5/04 ,  F02F1/06 ,  F02B75/02

Abstract: The temperature of exhaust gas discharged from a compact air-cooled engine used as a power source for an engine-driven working machine is reduced. An engine has a muffler mounted directly to the exhaust opening of the cylinder, and a resin muffler cover covering the muffler. An exhaust gas restriction member is provided to a wall surface of the muffler, and two exhaust passages serving as outlets for exhaust gas are formed in the exhaust gas restriction member. The exhaust passages are arranged independent of each other, and the streams of discharged exhaust gas are discharged to be slightly separated from each other as the streams flow away from the exhaust openings. The separated streams of discharged exhaust gas form a negative pressure space between the streams promoting the introduction of a cooling air stream into the negative pressure portion. Thus, the temperature of the exhaust gas can be reduced.

公开(公告)号：US10662856B2

公开(公告)日：2020-05-26

申请号：US16088134

申请日：2016-12-01

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yoshihiro Harada ,  Ryohei Matsuoka ,  Kazuhiro Ishizaka ,  Minoru Saito ,  Toru Kimura ,  Naoki Aikawa

IPC: F01P1/06 ,  B63H20/32 ,  B63H20/00

Abstract: An outboard motor 10 includes an engine 16, a fuel tank 25, a propeller 17 which is configured to be driven by the engine 16, a case member 18 which rotatably supports the propeller 17, a recoil starter 29 which is configured to cause the engine 16 to start by manually rotating a crankshaft of the engine 16, and a cover member 16 which is mounted on the case member 18 so as to cover the engine 16, the fuel tank 25, and the recoil starter 29. The recoil starter 29 includes a recoil cover 34, which is formed with an air passage hole 34c.