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公开(公告)号：US5088273A
公开(公告)日：1992-02-18
申请号：US633251
申请日：1990-12-21
CPC分类号： A01D34/824 , A01D34/6818 , F02N3/02 , A01D2101/00
摘要： A lawnmower handle assembly is disclosed for manually-starting lawnmowers in which the starter rope handle is retained by the bale lever. The rope handle is preferably retained by an aperture in the bale lever, with the starter rope passing through the aperture. The handle assembly enables the starter rope handle to be more accessible to the operator during starting, and decreases the time required for the lever to engage an ignition or blade stopping mechanism when the lever is released.
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公开(公告)号：US5234038A
公开(公告)日：1993-08-10
申请号：US767243
申请日：1991-09-27
摘要： A pour spout for pouring a fluid, such as fuel, by gravity from a container to a tank. The spout includes a conduit having one end connected to the fuel container and having a second end to be positioned within the neck of the tank. A sleeve is mounted for sliding movement within the conduit and the outer end of the sleeve carries a closure which closes off the discharge end of the conduit. A vent tube is disposed within the conduit and has an inlet end which is adapted to communicate with the fuel tank when the closure is in the open position. A check valve is mounted within the vent tube and permits the flow of fuel vapor and air from the tank through the tube to the container, but prevents flow of fuel in the opposite direction. An annular collar is mounted on the conduit and with the collar engaged with the neck of the fuel tank, a downward force applied through the container on the sleeve will open the closure to admit fuel through the conduit to the tank. The collar is adjustably mounted along the length of the fluid conduit to accommodate tank necks of different configurations. The closure carries a rotatable tab which encloses the inlet of the vent tube when the closure is in the closed position to prevent foreign material from entering the vent tube, but permits limited vapor and air flow to eliminate a buildup of pressure or vacuum in the fuel container. By rotating the tab, the tab can be brought into sealing engagement with the inlet of the vent tube to prevent vapor or liquid flow therethrough.
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公开(公告)号：US06647942B2
公开(公告)日：2003-11-18
申请号：US09940032
申请日：2001-08-27
IPC分类号： F02N502
CPC分类号： F02N5/02 , A01D34/6818 , F02D41/042 , F02D2009/0216 , F02N15/06
摘要： An internal combustion engine includes a spring housing rotatably mounted to the engine's engine housing for rotation about an axis of rotation. An energy storing mechanism including at least one elastic member is housed within the spring housing. A spring loading mechanism includes at least one roller movable into and out of engagement between the engine's flywheel and the spring housing, such that rotation of the flywheel is converted through the at least one roller to cause rotation of the spring housing in a direction that loads the elastic member. An engine starting mechanism includes a helically threaded member interconnected with the spring housing and a starter pinion threaded onto the helically threaded member. Rotation of the spring housing in response to unloading of the elastic member causes the starter pinion to move into engagement with the flywheel, thereby rotating the flywheel and starting the engine.
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公开(公告)号：US06595176B2
公开(公告)日：2003-07-22
申请号：US09940031
申请日：2001-08-27
IPC分类号： F02N100
CPC分类号： F02N5/02 , A01D34/6818 , F02D41/042 , F02D2009/0216
摘要： An engine starting and stopping device includes a first roller selectively abutting the flywheel of an engine for rotation on a first shaft in response to rotation of the flywheel. A second roller abuts the first roller and rotates in response to rotation of the first roller. A second shaft and an overwind clutch couple the second roller with a third roller such that the third roller rotates in response to rotation of the second roller. The third roller abuts a spring housing and causes rotation of the spring housing in response to rotation of the third roller. A spring is housed within the spring housing and is loaded in response to rotation of the spring housing. The overwind clutch slips when the spring is loaded to a preselected level to protect the spring from overwinding. The spring is selectively unloaded to rotate the spring housing in an unloading direction. Rotation of the spring housing in the unloading direction causes rotation of the engine's crankshaft and startup of the engine.
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公开(公告)号：US6145487A
公开(公告)日：2000-11-14
申请号：US466817
申请日：1999-12-17
CPC分类号： F02M1/10 , F02D9/02 , F02M1/08 , F02D2009/0216
摘要： An automatic choke for a small internal combustion engine uses an air vane responsive to an air flow created by a radial fan to position the choke valve during engine starting. A return spring or gravity may be used to reset the automatic choke after the engine has been stopped. The automatic choke includes a thermally-responsive device that keeps the choke at least partially open during hot restarts of the engine.
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公开(公告)号：US06311663B2
公开(公告)日：2001-11-06
申请号：US09780109
申请日：2001-02-09
申请人： Gary J. Gracyalny , Robert K. Mitchell , Art Poehlman , Richard Dykstra , Steven Dethloff , Charles Brown , Paul Tharman , John Santi , Dick Seilenbinder , Aaron Jerabek , John Feldner , Stanely Filipak
发明人： Gary J. Gracyalny , Robert K. Mitchell , Art Poehlman , Richard Dykstra , Steven Dethloff , Charles Brown , Paul Tharman , John Santi , Dick Seilenbinder , Aaron Jerabek , John Feldner , Stanely Filipak
IPC分类号： F02N502
CPC分类号： F02N15/027 , A01D34/6818 , F02D41/042 , F02D2009/0216 , F02N5/02 , F02N15/022 , Y10T74/134
摘要： An internal combustion engine includes an engine housing, a crankshaft supported within the engine housing for rotation with respect to the engine housing, and a flywheel fixedly mounted to the crankshaft and rotatable with the crankshaft in a starting direction to start the engine. A coil spring has an outer end fixedly interconnected with respect to the engine housing, and an inner end. A unidirectional clutch has a portion connected to the inner end of the spring. The unidirectional clutch is characterized by an interference condition in which the unidirectional clutch couples the inner end of the spring to the flywheel such that the flywheel and crankshaft may be rotated in the starting direction in response to unloading of the spring. The unidirectional clutch is also characterized by a non-interference condition in which the inner end of the spring is uncoupled from the flywheel. An input assembly is interconnected with the spring and selectively movable into contact with flywheel to load the spring in response to rotation of the flywheel. A locking mechanism selectively prevents the spring from unloading, and at least one manual actuator is actuable to disengage the locking mechanism from the spring to enable unloading of the spring.
摘要翻译： 内燃机包括发动机壳体，支撑在发动机壳体内的曲轴，用于相对于发动机壳体旋转;以及飞轮，其固定地安装到曲轴上并随着曲轴以启动方向旋转以起动发动机。 螺旋弹簧具有相对于发动机壳体固定地互连的外端和内端。 单向离合器具有连接到弹簧的内端的部分。 单向离合器的特征在于干涉状态，其中单向离合器将弹簧的内端耦合到飞轮，使得飞轮和曲轴可以响应于弹簧的卸载而沿起始方向旋转。 单向离合器的特征还在于非干涉状态，其中弹簧的内端与飞轮分离。 输入组件与弹簧互连，并可选择性地与飞轮接触，以响应于飞轮的旋转加载弹簧。 锁定机构选择性地防止弹簧卸载，并且至少一个手动致动器可致动以将锁定机构与弹簧分离以使得能够卸下弹簧。
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公开(公告)号：US6012420A
公开(公告)日：2000-01-11
申请号：US1178
申请日：1997-12-30
CPC分类号： F02M1/10 , F02D9/02 , F02M1/08 , F02D2009/0216
摘要： An automatic choke for a small internal combustion engine uses an air vane responsive to an air flow created by a radial fan to position the choke valve during engine starting. A return spring or gravity may be used to reset the automatic choke after the engine has been stopped. The automatic choke includes a thermally-responsive device that keeps the choke at least partially open during hot restarts of the engine.
摘要翻译： 用于小型内燃机的自动扼流器使用响应于由径向风扇产生的气流的空气叶片来在发动机起动期间定位阻流阀。 发动机停止后，可以使用复位弹簧或重力来重置自动扼流圈。 自动扼流器包括热响应装置，其在发动机的热重启期间使扼流圈至少部分地打开。
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公开(公告)号：US3958906A
公开(公告)日：1976-05-25
申请号：US535966
申请日：1974-12-23
CPC分类号： F01C1/22 , F01C19/04 , F01C21/106 , F02B2053/005 , F02B3/06 , F02B53/00
摘要： A rotary engine of the trochoidal type in which the rotor and the profile of a basically trochoidally shaped inner housing wall bear such relationship to one another that when the differential in pressure in the flanking chambers is Greatest, the rotor apex seals are deliberately caused to stroke out, so that the resulting friction between the outwardly stroking apex seals and the sides of the rotor slots, so modifies the outward forces acting on the seals that the contact force between the seals and the housing wall are significantly less than they would be without such outward stroking of the apex seals. In one embodiment of the invention, the outward stroking of the apex seals results from the outward displacement of the profile of the inner housing wall surface along those stretches thereof at which the pressure differentials are greatest and, in another embodiment, the desired outward stroking is obtained by using an oversized two lobed-trochoidal profile for the inner housing wall and shifting the housing with respect to the rotor shaft along the major axis of the trochoid.
摘要翻译： 一种摆线式旋转发动机，其中转子和基本上摆动形状的内壳体壁的轮廓彼此具有这种关系，当侧翼腔中的压力差最大时，转子顶端密封件被故意地引起冲程 从而使向外抚摸的顶点密封件和转子槽的侧面之间产生的摩擦因此改变了作用在密封件上的向外的力，使得密封件和壳体壁之间的接触力明显小于它们将不会 顶部密封的向外抚摸。 在本发明的一个实施例中，顶部密封件的向外抚摸是由于内壳体壁表面的轮廓沿压缩差最大的那些伸展部向外移位，而在另一个实施例中，期望的向外移动是 通过使用用于内壳体壁的尺寸过大的双叶摆线轮廓并沿壳体沿着次摆线的长轴相对于转子轴移动壳体而获得。
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公开(公告)号：US06971369B1
公开(公告)日：2005-12-06
申请号：US10980563
申请日：2004-11-03
CPC分类号： F02D11/105 , F02D31/002 , F02D2400/06
摘要： A governor for an internal combustion engine having an intake passageway and an engine throttle valve movable between an open position and a closed position, a throttle arm connected to the engine throttle valve to control movement of the engine throttle valve. A pressure assist adjusts the position of the throttle arm when a load is applied to the engine. The pressure assist includes a pressure responsive actuator having a pressure chamber in fluid flow communication with the intake passageway. The pressure responsive actuator is movable in a first direction in response to a pressure or a vacuum in the intake passageway. The throttle arm is movable in response to movement of the pressure responsive actuator. A conduit connects the pressure chamber and the intake passageway in fluid flow communication. A one-way valve is disposed in the conduit between the pressure chamber and the intake passageway.
摘要翻译： 具有进气通道和可在打开位置和关闭位置之间运动的发动机节流阀的内燃机调速器，连接到发动机节气门的节流臂，以控制发动机节流阀的运动。 当负载施加到发动机时，压力辅助调节节气门臂的位置。 压力辅助包括压力响应致动器，其具有与进气通道流体流动连通的压力室。 压力响应致动器响应于进气通道中的压力或真空而沿第一方向移动。 响应于压力响应致动器的运动，节流臂可移动。 导管连接压力室和进气通道以流体流动连通。 单向阀设置在压力室和进气通道之间的管道中。
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公开(公告)号：USD456051S1
公开(公告)日：2002-04-23
申请号：US29139372
申请日：2001-03-30
申请人： Robert K. Mitchell
设计人： Robert K. Mitchell
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