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公开(公告)号：US5322645A
公开(公告)日：1994-06-21
申请号：US106410
申请日：1993-08-13
申请人： Steven L. Hammett , George M. Pattullo , Donald C. Ross , David L. Speirs , James E. Van Allen , Mark S. Swanson
发明人： Steven L. Hammett , George M. Pattullo , Donald C. Ross , David L. Speirs , James E. Van Allen , Mark S. Swanson
CPC分类号： F16B41/005 , F02B63/02 , F02M19/04 , F02M3/10 , F02B1/04 , F02B2075/025 , F02M2003/105 , F05C2201/021 , F16B37/14 , Y10S261/38 , Y10S261/84 , Y10T137/7062
摘要： A cap and method for limiting the range of adjustment of a fuel flow metering valve in a carburetor. The cap has a body with an arm projecting generally radially outwardly therefrom to abut against a stop carried by the carburetor to limit valve rotation and a passage therein for telescopically axially receiving the head end of a shank of the valve. Portions within the passage enable the cap to be retained in the shank of the valve in a freely rotating first position during assembly and arm orientation, and in a second position securing the cap to the valve to limit adjustment and maintain emissions calibration. Preferably, the cap may also be moved to a third position to releasably drivingly engage the valve to perform fuel flow adjustment before securing the cap to the valve. The cap can also be prepositioned angularly relative to an adjusted position of the valve before it is moved to its second position on the valve to limit the extent of subsequent adjustment of the valve.
摘要翻译： 用于限制化油器中燃料流量计量阀的调节范围的盖和方法。 盖具有主体，该臂具有从其大致径向向外突出的臂，以抵靠由化油器承载的止挡件以限制阀旋转，并且其中用于可伸缩地轴向地容纳阀杆的头端的通道。 通道内的部分使得盖能够在组装和臂定向期间以自由旋转的第一位置保持在阀的柄中，并且在将盖固定到阀以限制调节并维持排放校准的第二位置中。 优选地，盖子还可以移动到第三位置以可释放地驱动地接合阀门，以在将盖子固定到阀门之前执行燃料流量调节。 在阀门移动到阀门的第二位置之前，盖子也可以相对于阀的调节位置成角度地进行预定位，以限制阀的后续调整的程度。
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公开(公告)号：US06402124B1
公开(公告)日：2002-06-11
申请号：US09538123
申请日：2000-03-29
IPC分类号： F02M308
CPC分类号： F02M3/10 , F02M19/04 , F02M2003/105 , Y10S261/38 , Y10S261/84 , Y10T137/7062
摘要： A carburetor fuel mixture adjustment assembly including a threaded cylindrical needle valve receptacle formed in a carburetor main body and intersecting a fuel passage. A needle valve body is threaded into the needle valve receptacle and includes a needle that extends into an axially-aligned needle seat orifice portion of the fuel passage. The needle is axially movable within the needle seat orifice by rotation of the needle valve body to control how much of the orifice is open to fuel flow. A valve spring disposed between a head of the needle valve body and the carburetor main body biases the head away from the carburetor main body. A needle stabilizer engages and cooperates with the valve spring in laterally biasing the needle into one position relative to the needle seat orifice. The lateral bias assures constant fuel flow through the orifice by resisting needle movement.
摘要翻译： 一种化油器燃料混合物调节组件，包括形成在化油器主体中并与燃料通道相交的带螺纹的圆柱形针阀座。 针阀体被拧入针阀座中，并且包括延伸到燃料通道的轴向对准的针座孔部分中的针。 针可以通过针阀体的旋转在针座孔内轴向移动，以控制孔口对燃料流量的开放程度。 设置在针阀体的头部与化油器主体之间的阀弹簧使头离开化油器主体。 针稳定器与阀弹簧接合并与阀弹簧配合，以使针相对于针座孔横向偏置一个位置。 横向偏压确保通过阻止针运动通过孔的恒定的燃料流动。
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公开(公告)号：US20080121201A1
公开(公告)日：2008-05-29
申请号：US12026620
申请日：2008-02-06
IPC分类号： F02N3/02
CPC分类号： F02N3/02 , F02B63/02 , F02D9/1065 , F02D11/02 , F02D11/04 , F02D41/067 , F02D2011/103 , F02D2400/06 , F02M1/08 , F02N15/10 , F02N19/001
摘要： A starting system for a combustion engine including a carburetor with a throttle valve moveable between idle and wide open positions, a throttle control to control movement of the throttle valve during normal operation of the engine, and a linkage between the throttle control and the throttle valve. The starting system includes a recoil pulley, a pull-cord to rotate the recoil pulley, an actuator moveable in response to rotation of the recoil pulley, and a throttle override device. The throttle override device has a first control member moveable from a first position to a second position in response to movement of the actuator, and a second control member moveable in response to movement of the first control member from a first to a second position. The second control member is operably associated with the linkage to prevent the throttle valve from being in its wide open position when the second control member is in its second position.
摘要翻译： 一种用于内燃机的起动系统，包括具有在空转和大开位置之间运动的节气门的化油器，用于控制在发动机的正常运行期间节流阀的运动的节气门控制，以及节气门控制和节气门之间的联动 。 启动系统包括反冲滑轮，用于旋转反冲滑轮的拉绳，响应于反冲滑轮的旋转而可移动的致动器以及节气门超驰装置。 节气门超控装置具有响应于致动器的运动而从第一位置移动到第二位置的第一控制构件，以及可响应于第一控制构件从第一位置移动到第二位置的第二控制构件。 第二控制构件可操作地与联动装置相关联，以防止当第二控制构件处于其第二位置时节气门处于其大的打开位置。
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公开(公告)号：US08061322B2
公开(公告)日：2011-11-22
申请号：US12026620
申请日：2008-02-06
IPC分类号： F02M1/00
CPC分类号： F02N3/02 , F02B63/02 , F02D9/1065 , F02D11/02 , F02D11/04 , F02D41/067 , F02D2011/103 , F02D2400/06 , F02M1/08 , F02N15/10 , F02N19/001
摘要： A starting system for a combustion engine including a carburetor with a throttle valve moveable between idle and wide open positions, a throttle control to control movement of the throttle valve during normal operation of the engine, and a linkage between the throttle control and the throttle valve. The starting system includes a recoil pulley, a pull-cord to rotate the recoil pulley, an actuator moveable in response to rotation of the recoil pulley, and a throttle override device. The throttle override device has a first control member moveable from a first position to a second position in response to movement of the actuator, and a second control member moveable in response to movement of the first control member from a first to a second position. The second control member is operably associated with the linkage to prevent the throttle valve from being in its wide open position when the second control member is in its second position.
摘要翻译： 一种用于内燃机的起动系统，包括具有在空转和大开位置之间运动的节气门的化油器，用于控制在发动机的正常运行期间节流阀的运动的节气门控制，以及节气门控制和节气门之间的联动 。 启动系统包括反冲滑轮，用于旋转反冲滑轮的拉绳，响应于反冲滑轮的旋转而可移动的致动器以及节气门超驰装置。 节气门超控装置具有响应于致动器的运动而从第一位置移动到第二位置的第一控制构件，以及可响应于第一控制构件从第一位置移动到第二位置的第二控制构件。 第二控制构件可操作地与联动装置相关联，以防止当第二控制构件处于其第二位置时节气门处于其大的打开位置。
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公开(公告)号：US07427057B1
公开(公告)日：2008-09-23
申请号：US11361592
申请日：2006-02-24
IPC分类号： F02M17/38
CPC分类号： F02D9/1065 , F02D9/106 , F02M7/12 , F02M17/04 , Y10T137/0525
摘要： A combustion engine carburetor has a control valve assembly that generally controls flow through a fuel-and-air mixing passage extending through a body of the carburetor. The control valve assembly has at least one valve preferably of a butterfly-type having a shaft that extends transversely across the fuel-and-air mixing passage and journaled for rotation in the body about a rotation axis. The shaft has opposite trailing and leading end portions that project from generally opposing sides of the carburetor body. Axial movement of the shaft with respect to the body is limited by an axial retention feature that preferably has a radially enlarged end cap formed unitarily to the trailing end portion and a coupler snap fitted to the leading end portion. Preferably, the coupler is formed unitarily at least in part to a control lever of the valve having a rotation restriction feature that prevents rotation of the control lever with respect to the shaft and is orientated in such a way to the leading end portion so that the control lever and at least a part of the coupler is removable from the shaft.
摘要翻译： 燃烧发动机化油器具有控制阀组件，其通常控制通过延伸穿过化油器主体的燃料和空气混合通道的流量。 控制阀组件具有至少一个蝶阀类型的阀，该阀具有横向延伸穿过燃料和空气混合通道的轴并且围绕旋转轴线在本体中旋转。 轴具有从化油器主体的大致相对侧突出的相对的后端部和前端部。 轴的相对于主体的轴向运动由轴向保持特征限制，轴向保持特征优选地具有与后端部一体形成的径向扩大的端盖和与前端部嵌合的联接器卡扣。 优选地，联接器至少部分地形成为具有旋转限制特征的阀的控制杆，该旋转限制特征防止控制杆相对于轴旋转并且以这种方式定向到前端部，使得 控制杆和联接器的至少一部分可从轴上移除。
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6.发明授权
公开(公告)号：US5984281A
公开(公告)日：1999-11-16
申请号：US986735
申请日：1997-12-08
CPC分类号： F02M3/08 , F02B63/02 , F02M19/04 , F02M3/10 , F16B21/075 , F16B21/078 , F02B2075/025 , F02M2003/105 , F05C2201/021 , F16B35/06 , Y10S261/38 , Y10S261/84 , Y10T137/7062
摘要： Improvement in peanut clip limiter cap holder, wherein the clip spring legs are interconnected by a spring web that flexes to accommodate flexing of the clip legs free ends during insertion of the associated limiter caps into the retaining clip, and prolongs the effective friction grip service life of the clip. Optional detent dimples on the clip spring legs and cooperative limiter cap grooves enhance yieldable retention of the caps in the clip and the clip on the needle valves. When the peanut clip is used to install only a single limiter cap on a single needle valve, a dummy stud is mounted to the carburetor in the vacant needle valve position and the stud head occupies the vacant limiter cap position in the clip. An improved needle valve is made as an assembly of a lathe-turned tip/shank part and a separate precision die cast head part. The head part has the needle spring stop flange, the fluted spline portion, the limiter cap barb retention structure, and a cavity telescopically receiving a shank stem to rotationally drive couple the shank and head parts in assembly. The shank stem is press fit or cast into the head cavity to permanently join the shank and head parts in fixed relationship, or preferably the head cavity cooperates with the shank stem and a cross arm thereof to form a releasable, telescopic, quarter-turn bayonet coupling. The needle valve spring biases the bayonet coupling to fully locked condition. Coupling axial lost motion insures lock-on of cap retention barbs on the head of the "shorter" needle, and thus final installation lock-on of both limiter caps while being held by the clip. "Side-play" between head and shank parts isolates the needle shank part from adverse needle bending moments.
摘要翻译： 改进花生夹限制帽盖架，其中夹子弹簧腿通过弹簧腹板相互连接，该弹簧腹板在将相关的限制器帽插入保持夹中时弯曲以适应夹腿自由端的弯曲，并延长有效的摩擦夹具使用寿命 的剪辑。 夹子弹簧腿和协调限制器盖槽上的可选制动凹坑增加了夹子中的帽和针阀上的夹子的可屈服保持力。 当花生夹用于在单个针阀上安装单个限制器盖时，在空针阀位置将虚拟螺柱安装到化油器上，并且螺柱头部占据夹子中的空位限位器盖位置。 改进的针阀作为车床转动尖端/柄部件和单独的精密压铸头部件的组件制成。 头部具有针簧弹簧止动法兰，槽纹花键部分，限制帽倒钩保持结构，以及可伸缩地容纳柄柄的腔，以在组装中旋转地驱动柄和头部。 柄杆被压配合或铸造到头部腔中，以固定的关系永久地连接柄部和头部部分，或者优选地，头部空腔与柄杆和其横臂配合以形成可释放的，伸缩的四分之一转弯卡口 耦合。 针阀弹簧将卡口式联轴器偏压到完全锁定状态。 耦合轴向运动保证帽子保持倒钩在“较短”针头上的锁定，从而最终安装锁定两个限制帽，同时夹子夹持。 头部和柄部之间的“侧面游戏”将针柄部分与不利的针弯矩隔离开。
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公开(公告)号：US07600505B2
公开(公告)日：2009-10-13
申请号：US11092532
申请日：2005-03-29
申请人： George M. Pattullo
发明人： George M. Pattullo
IPC分类号： F02M37/20
摘要： A recoil starter for an internal combustion engine has a housing with a pulley carried at least in part for rotation therein. The pulley is arranged in operable communication with a crankshaft of the engine. A pull cord is wound about the pulley with one end of the cord being arranged to be pulled by a user to rotate the pulley. An actuator is carried for rotation in response to rotation of the pulley. A pump is arranged for actuation in response to rotation of the actuator to provide fresh liquid fuel to a carburetor and remove fuel vapor and stale fuel from the carburetor and deliver it to a fuel tank prior to starting the engine.
摘要翻译： 用于内燃机的反冲起动器具有壳体，所述壳体具有至少部分地承载在其中的旋转的滑轮。 滑轮布置成与发动机的曲轴可操作地连通。 牵引绳缠绕在滑轮周围，线的一端被布置成被使用者拉动以旋转滑轮。 响应于滑轮的旋转，承载致动器以进行旋转。 泵被布置成响应于致动器的旋转而致动，以向化油器提供新鲜的液体燃料，并从化油器中除去燃料蒸气和陈旧的燃料，并在起动发动机之前将其输送到燃料箱。
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公开(公告)号：US07448358B2
公开(公告)日：2008-11-11
申请号：US11732311
申请日：2007-04-03
CPC分类号： F02P3/083 , F02D41/08 , F02D41/307 , F02P1/086 , F02P5/06 , F02P5/1504 , F02P5/1506 , F02P5/1508 , F02P11/025 , Y02T10/46
摘要： A control system for a low cost, light duty combustion engine, where the control system generally utilizes an engine speed input signal and independent operating sequences to determine a desired ignition timing. There are several independent operating sequences, each one of which is designed to optimally control the engine under certain conditions. These operating sequences include a Cranking sequence, a Warm Up sequence, a Normal Mode sequence, an Acceleration sequence, a Come Down sequence, a Recovery Bump sequence, and a Part Throttle sequence. During idling conditions, the Normal Mode sequence uses rapid changes in the ignition timing to maintain the engine speed in a small, idle engine speed range. By utilizing these operational sequences, the control system improves the performance of a low cost, light duty engine across a wide array of conditions.
摘要翻译： 一种用于低成本，轻型内燃机的控制系统，其中控制系统通常利用发动机速度输入信号和独立的操作顺序来确定期望的点火正时。 有几个独立的操作顺序，每个操作顺序都设计为在某些条件下优化控制发动机。 这些操作序列包括起始序列，预热序列，正常模式序列，加速序列，下降序列，恢复凸起序列和部分节气门序列。 在怠速条件下，正常模式序列使用点火正时的快速变化，以将发动机转速保持在小的怠速发动机转速范围内。 通过利用这些操作顺序，控制系统在各种条件下提高了低成本，轻型发动机的性能。
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公开(公告)号：US20080258320A1
公开(公告)日：2008-10-23
申请号：US11738234
申请日：2007-04-20
申请人： George M. Pattullo
发明人： George M. Pattullo
IPC分类号： F02M1/02
摘要： A charge forming device may include a body having a fuel and air mixing passage, a throttle valve and choke valve moveable between first and second positions to control at least in part the fluid flow in the fuel and air mixing passage, and throttle and choke control members associated with the throttle and choke valves, respectively. The choke control member may also be associated with an engine starting system so that the choke valve is moved to its second position upon actuation of the starting system. The choke control member is selectively associated with the throttle control member to hold the choke control member in a position spaced from its first position. In this manner, the throttle valve and choke valve may be automatically positioned in a desired position for starting of the engine upon actuation of the engine starting system.
摘要翻译： 电荷形成装置可以包括具有燃料和空气混合通道的主体，节流阀和阻塞阀，可在第一和第二位置之间移动，以至少部分地控制燃料和空气混合通道中的流体流动，以及节流和阻塞控制 与节气门和节流阀相关联的构件分别。 扼流器控制构件也可以与发动机启动系统相关联，使得在启动系统启动时阻塞阀被移动到其第二位置。 扼流器控制构件选择性地与节气门控制构件相关联，以将扼流器控制构件保持在与其第一位置间隔开的位置。 以这种方式，节气门和阻风阀可以在发动机起动系统启动时自动定位在用于启动发动机的期望位置。
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公开(公告)号：US07136742B2
公开(公告)日：2006-11-14
申请号：US10955108
申请日：2004-09-30
IPC分类号： F02P9/00
CPC分类号： F02D41/042 , F02D2400/06 , F02P1/086 , F02P3/083 , F02P5/1504 , F02P11/02 , F02P11/025 , Y02T10/46
摘要： A kill-switch control circuit for use with a light-duty combustion engine determines whether to execute a controlled shut down method or an immediate shut down method in response to kill-switch activation. The selection of a shut down method is made, at least in part, by using engine speed readings and by counting engine revolutions. The controlled shut down method utilizes ignition timing delay and/or spark ratio techniques to quickly bring the engine to a stop, yet does so in a controlled manner that avoids backfiring and other undesirable effects. Conversely, the immediate shut down method abruptly stops sending a current to the spark plug.
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