公开(公告)号：US20240344469A1

公开(公告)日：2024-10-17

申请号：US18751996

申请日：2024-06-24

Applicant: Arctic Cat Inc.

Inventor： Alexander Konrad Fuhrman ,  Ryan Douglas Hayes ,  Andrew Jon Ellsworth ,  Cord Miller Christensen ,  David Mark Sabo ,  Derek Robert Kvenvold

IPC: F01M1/02 ,  B62M27/02 ,  F01M1/12 ,  F01M11/00 ,  F01P1/02 ,  F01P3/20 ,  F01P11/02 ,  F02B75/02

CPC classification number: F01M1/02 ,  B62M27/02 ,  F01M11/0004 ,  F01P1/02 ,  F01P3/20 ,  F02B75/02 ,  F01M2001/023 ,  F01M2001/0238 ,  F01M2001/0269 ,  F01M2001/123 ,  F01M2011/0095 ,  F01P2001/023 ,  F01P11/029 ,  F01P2050/16 ,  F01P2060/02 ,  F01P2060/04 ,  F01P2060/12 ,  F02B2075/025

Abstract: A two-stroke engine comprises a first oiling system and a second oiling system. The first oiling system includes a low-pressure pump that distributes oil from a first oil tank to the two-stroke engine. The second oiling system includes a pump mechanically coupled to a crankshaft of the two-stroke engine, wherein the pump distributes oil from a second oil tank to an accessory at a pressure greater than the first oil pressure, wherein oil distributed to the accessory is returned to the second oil tank.

公开(公告)号：US12055088B2

公开(公告)日：2024-08-06

申请号：US17694390

申请日：2022-03-14

Applicant: HONDA MOTOR CO., LTD.

Inventor： Wataru Yamazaki ,  Yasunori Matsubara ,  Takashi Suzuki

IPC: F01P5/06 ,  F01P1/02

CPC classification number: F01P5/06 ,  F01P1/02 ,  F01P2001/023

Abstract: The internal combustion engine includes a fan cover that covers a cooling fan driven by a crankshaft, a top cover that covers the fan cover, and a cooling air passage between the fan cover and the top cover. The fan cover includes a first rib facing the top cover in the cooling air passage.

公开(公告)号：US20240183296A1

公开(公告)日：2024-06-06

申请号：US18441402

申请日：2024-02-14

Applicant: Kohler Co.

Inventor： Robert A. GRISWOLD ,  David Hasler ,  Brittany Nicole Tremblay ,  Sean Leroy Winter Leroy Winter ,  Christopher Wolf ,  Alexander A Anthony Yosick

IPC: F01N3/05 ,  F01N13/10 ,  F01P1/02 ,  F01P1/06

CPC classification number: F01N3/055 ,  F01N13/10 ,  F01P1/02 ,  F01P1/06 ,  F01N2240/20 ,  F01P2001/023

Abstract: A heat management system for air-cooled engines suitable to power yard care equipment or vehicles. The system may generally comprise an engine, a blower configured to blow ambient cooling air across the engine, and an exhaust system comprising an exhaust header and a muffler. The exhaust header has an inlet end which receives heated exhaust gas from the engine and an outlet end fluidly coupled to the muffler. An air control baffle is configured to redirect a portion of the cooling air from the blower towards the exhaust header and the muffler to enhance cooling the exhaust system. The system may further include an outermost protective shield exposed to equipment operators and an inner heat barrier or shield located between the muffler and protective shield. The system is designed to ameliorate both radiative and convective sources of heat transfer to maintain the protective shield at temperatures below established industry standards.

公开(公告)号：US20170130676A1

公开(公告)日：2017-05-11

申请号：US14933859

申请日：2015-11-05

Applicant: INI Power Systems, Inc.

Inventor： Larry J. Markoski ,  Timothy C. Simmons

IPC: F02M1/12 ,  F02B69/04 ,  F02B63/04

CPC classification number: F02M1/12 ,  F01P1/02 ,  F02B11/02 ,  F02B63/048 ,  F02B75/16 ,  F02M29/04 ,  F02M31/005 ,  F02M31/135 ,  F02M31/18 ,  Y02T10/126

Abstract: A thermal choke, includes (1) a body, comprising a heat conductive material, (2) an electric heater, on or in the body, (3) a temperature sensor, on or in the body, and (4) a fin, in a channel surrounded by the body. The thermal choke is configured to fit between a throttle assembly and a cylinder of a spark ignition engine.

公开(公告)号：US20170074151A1

公开(公告)日：2017-03-16

申请号：US15260653

申请日：2016-09-09

Applicant: Franco Bartolotta

Inventor： Franco Bartolotta

IPC: F01P1/02 ,  F01P5/06

CPC classification number: F01P1/02 ,  F01P5/06 ,  F01P2037/00 ,  F01P2050/16

Abstract: A device and method for cooling an air cooled motorcycle engine. A fan and a cover acting as a duct directs engine heat forward away from a rider when the motorcycle engine is hot and the motorcycle is stopped. When the motorcycle is in motion the fan is switched off and the passing air takes a reversed path and flows rearward over the engine fins cooling the engine.

Abstract translation: 一种用于冷却空气冷却的摩托车发动机的装置和方法。 当摩托车发动机很热并且摩托车停止时，风扇和作为风道的盖子引导发动机向前推离远离骑手。 当摩托车运动时，风扇被关闭，通过的空气采取相反的路径，并且在冷却发动机的发动机翅片上向后流动。

公开(公告)号：US09322344B2

公开(公告)日：2016-04-26

申请号：US14459027

申请日：2014-08-13

Applicant: HITACHI KOKI CO., LTD.

Inventor： Toshiaki Isono ,  Genju Akiba

IPC: F02D7/00 ,  F02D31/00 ,  A01D34/90 ,  F02M35/10 ,  F02D9/10 ,  F02B63/02 ,  F01P1/02

CPC classification number: F02D31/00 ,  A01D34/90 ,  F01P1/02 ,  F02B63/02 ,  F02D9/1065 ,  F02M35/1017 ,  F02M35/10196

Abstract: An engine-powered work tool includes an engine having a crank shaft, an output controller and a wind governor. The output controller includes an output control shaft angularly rotatable about its axis for controlling a rotation speed of the crank shaft. The wind governor can control the angular rotation of the output control shaft and includes: a governor plate for receiving cooling air generated at a cooling fan connected to the crank shaft; an arm fixed to the output control shaft; and a governor spring connected to the arm for biasing the output control shaft to increase the rotation speed of the crank shaft. The governor plate functions to bias the output control shaft to decrease the rotation speed of the crank shaft upon receipt of the cooling air. The governor spring has an end changeable in position relative to the output controller among a plurality of prescribed positions.

Abstract translation: 发动机动力作业工具包括具有曲柄轴，输出控制器和调速器的发动机。 输出控制器包括一个输出控制轴，该输出控制轴绕其轴线可转动，用于控制曲柄轴的转速。 调速器可以控制输出控制轴的角度旋转，并包括：调节板，用于接收在连接到曲轴的冷却风扇上产生的冷却空气; 臂固定到输出控制轴; 以及调节器弹簧，其连接到所述臂，用于偏压所述输出控制轴以增加所述曲柄轴的转速。 调速板用于偏压输出控制轴，以减少接收到冷却空气时曲柄轴的转速。 调速器弹簧在多个规定位置中具有相对于输出控制器的位置的可变位置。

公开(公告)号：US09267419B2

公开(公告)日：2016-02-23

申请号：US14217918

申请日：2014-03-18

Applicant: Ford Global Technologies, LLC

Inventor： Meisam Mehravaran ,  Garrett Michael O'Donohue ,  Jim Tyler ,  LaMar Stewart

IPC: F01P7/02 ,  F01P1/02 ,  F01P7/04 ,  F01P5/04 ,  F01P7/08 ,  F01P5/12

CPC classification number: F01P1/02 ,  F01P5/04 ,  F01P5/06 ,  F01P5/12 ,  F01P7/046 ,  F01P7/084 ,  F01P2025/66 ,  F04D29/547 ,  Y10T29/49229

Abstract: A convex fan shroud for use with an automotive engine cooling system having a fan and a fan-cooled, liquid-to-air radiator is disclosed. The convex fan shroud has an optimized shape that leads to high air flow rates through the radiator. The convex fan shroud includes a front frame that defines an air-intake opening, a convex top wall connected to the frame, a convex bottom wall connected to the frame, and a pair of opposed convex side walls connected to the frame and to the top and bottom walls. The interior surfaces of the walls are smooth. The convex walls define a barrel-shaped shroud body that includes a round engine-facing opening to accommodate the fan. In addition to generating a higher flow rate, the disclosed inventive concept for a smooth convex fan shroud is relatively low cost to produce and has a relatively high degree of rigidity.

Abstract translation: 公开了一种与具有风扇和风扇冷却的液体对空气散热器的汽车发动机冷却系统一起使用的凸形风扇罩。 凸形风扇罩具有优化的形状，导致通过散热器的高空气流速。 凸扇形罩包括限定进气口的前框架，连接到框架的凸顶壁，连接到框架的凸底壁和连接到框架和顶部的一对相对的凸侧壁 和底壁。 墙壁的内表面光滑。 凸形壁限定了一个桶形护罩主体，其包括一个面向发动机的面向开口以容纳风扇。 除了产生更高的流速之外，所公开的用于光滑凸扇形罩的发明构思相对较低，并且具有较高的刚度。

公开(公告)号：US09249715B2

公开(公告)日：2016-02-02

申请号：US14195025

申请日：2014-03-03

Applicant: HITACHI KOKI CO., LTD.

Inventor： Naoto Ichihashi

IPC: F01P1/06 ,  F01P1/02 ,  F01P5/06 ,  F02B63/02

CPC classification number: F01P1/02 ,  F01P5/06 ,  F01P2001/026 ,  F02B63/02

Abstract: An air-cooled engine includes a cylinder provided with a plurality of cooling fins at an outer peripheral surface of the cylinder, a cooling fan, a cylinder cover covering the cylinder, an air guide plate, and an air guide portion. The air guide plate is positioned between an inner surface of the cylinder cover and the fins. The cooling fan generates cooling air stream for cooling the cylinder, and the air guide plate is configured to guide the cooling air stream to flow through a space between the inner surface of the cylinder cover and the fins. A first small space is defined between the air guide plate and the inner surface of the cylinder cover. The air guide portion covers at least a part of the first small space at an upstream side of the air guide plate in the axial direction of the drive shaft.

Abstract translation: 一种风冷发动机包括在气缸的外周面设置有多个冷却翅片的气缸，冷却风扇，覆盖气缸的气缸盖，导气板和空气引导部。 导气板位于气缸盖的内表面和散热片之间。 冷却风扇产生用于冷却气缸的冷却空气流，并且空气引导板构造成引导冷却空气流流过气缸盖的内表面和翅片之间的空间。 在导气板和气缸盖的内表面之间限定第一小空间。 空气引导部在驱动轴的轴向上覆盖导气板的上游侧的第一小​​空间的至少一部分。

公开(公告)号：US20150152764A1

公开(公告)日：2015-06-04

申请号：US14412012

申请日：2013-07-05

Applicant: YANMAR CO., LTD.

Inventor： Shinya Fukuyoshi ,  Kazuyuki Miyazaki

IPC: F01N3/05 ,  F01P1/02 ,  F01N3/10

CPC classification number: F01N3/055 ,  F01N3/021 ,  F01N3/10 ,  F01N3/103 ,  F01N13/0097 ,  F01N13/1805 ,  F01N13/1844 ,  F01N13/1855 ,  F01N2340/04 ,  F01N2560/08 ,  F01N2590/08 ,  F01P1/02 ,  F01P2001/026 ,  F02M51/005 ,  F02M2200/85 ,  Y02T10/20

Abstract: An engine apparatus includes an exhaust gas purifier configured to purify exhaust gas from an engine. The exhaust gas purifier is mounted on the engine with a longitudinal direction of the exhaust gas purifier being orthogonal to an output shaft of the engine. A cooling fan is disposed on one side surface of the engine that intersects the output shaft. The exhaust gas purifier is supported by a cylinder head at a portion on an upper surface of the engine that is closer to the cooling fan.

Abstract translation: 发动机装置包括净化发动机废气的排气净化装置。 废气净化器安装在发动机上，排气净化器的纵向方向与发动机的输出轴正交。 在与输出轴相交的发动机的一个侧面上配置有冷却风扇。 排气净化器由发动机的上表面上靠近冷却风扇的部分处的气缸盖支撑。

公开(公告)号：US09010284B2

公开(公告)日：2015-04-21

申请号：US13789551

申请日：2013-03-07

Applicant: Hitachi Koki Co., Ltd.

Inventor： Naoto Ichihashi

IPC: F01P1/02 ,  F01P1/00 ,  F01P9/00

CPC classification number: F01P1/00 ,  F01P1/02 ,  F01P9/00

Abstract: The cooling effect of an engine is improved. An engine, which rotationally drives a saw chain serving as a rotating tool, is provided with a crankcase, in which a crankshaft is rotatably built, and a cylinder, in which a piston coupled to the crankshaft via a connecting rod is reciprocatably built. Atop part of the cylinder is covered with a cylinder cover, and a cooling wind toward the cylinder is generated by a cooling fan attached to a projecting end of the crankshaft. The cooling wind is guided by heat-dissipating plates extending along the crankshaft. Exposing parts bulged to outside than a lateral side of the cylinder cover are provided to tips of the heat-dissipating plates.

Abstract translation: 发动机的冷却效果提高。 旋转地驱动用作旋转工具的锯链的发动机设置有曲轴箱，其中曲轴可旋转地构成，其中通过连杆联接到曲轴的活塞可往复运动地构成。 气缸的顶部覆盖有气缸盖，并且通过附接到曲轴的突出端的冷却风扇产生朝向气缸的冷却风。 冷却风由沿着曲轴延伸的散热板引导。 散热片外侧的部分露出气缸盖侧面的部分。