公开(公告)号：US6003845A

公开(公告)日：1999-12-21

申请号：US46909

申请日：1998-03-24

Applicant: Dale P. Kus

Inventor： Dale P. Kus

IPC: F02M19/04 ,  F02M19/01 ,  F02M3/10

CPC classification number: F02M19/01 ,  Y10S261/38 ,  Y10S261/84 ,  Y10T137/7062

Abstract: A fuel mixture adjusting and limiting device for a carburetor has a body received in a bore of the carburetor and defining a fuel passage through which liquid fuel is supplied to the high and/or low speed system of the carburetor, an inlet opening in the body through which fuel enters the fuel passage from a metering chamber of the carburetor and a metering pin slidably carried by the body and capable of at least partially restricting the flow of fuel through the inlet opening to control the flow rate of fuel through the body. An adjustment screw threadably received in the bore of the carburetor is rotatable to axially displace the adjustment screw and during at least a portion of the axial range of movement of the adjustment screw, the adjustment screw bears on the metering pin to axially displace the metering pin and thereby control the flow area of the inlet opening. Preferably, the adjustment screw carries an adjustment pin which is axially displaceable relative to the adjustment screw and constructed to engage the metering pin to displace it. The axial location of the adjustment pin relative to the adjustment screw can be varied to alter the relationship between the adjustment screw and the metering pin.

Abstract translation: 用于化油器的燃料混合物调节和限制装置具有容纳在化油器的孔中的主体并且限定燃料通道，液体燃料通过该燃料通道供应到化油器的高速和/或低速系统，体内的入口开口 通过该燃料，燃料从化油器的计量室进入燃料通道，计量销可由主体可滑动地承载，并且能够至少部分地限制通过入口的燃料的流动，以控制通过本体的燃料的流量。 螺纹地接纳在化油器的孔中的调节螺钉可旋转以轴向移动调节螺钉，并且在调节螺钉的轴向运动范围的至少一部分期间，调节​​螺钉承载在计量销上以轴向移动计量销 从而控制入口开口的流动面积。 优选地，调节螺钉承载调节销，该调节销相对于调节螺钉可轴向移动并且构造成接合计量销以使其移位。 可以改变调节销相对于调节螺钉的轴向位置，以改变调节螺钉和计量销之间的关系。

公开(公告)号：US06427646B2

公开(公告)日：2002-08-06

申请号：US09764701

申请日：2001-01-18

Applicant: William E. Galka ,  Anthony M. Kueffner ,  Dale P. Kus ,  Kevin L. Williams

Inventor： William E. Galka ,  Anthony M. Kueffner ,  Dale P. Kus ,  Kevin L. Williams

IPC: F02B3304

CPC classification number: F02M17/04 ,  F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02B33/44 ,  F02B2075/025 ,  F02M13/046 ,  F02M23/03 ,  F02M59/107 ,  F02M59/14 ,  F02M69/10 ,  F02M69/18 ,  Y02T10/146

Abstract: A fuel injection system for a two-stroke small engine has a charge forming device with an injector mixing passage which forms a rich fuel and air mixture supplied to a tuned injector tube connected adjacent one end through a port to the engine cylinder and adjacent the other end to the engine crankcase. The charge forming device has a high speed fuel circuit which supplies at least a majority of the fuel to the mixing passage under wide open throttle operating conditions and preferably a minor portion of the fuel is also supplied by an idle fuel circuit which under engine idle conditions preferably supplies essentially all of the fuel to the engine. A separate inlet air flow passage of the charge forming device also supplies primarily air to the crankcase of the engine for transfer to the cylinder. Under engine wide open throttle conditions, preferably a very minor quantity of fuel with oil therein is supplied through the inlet air flow passage to the crankcase and transferred to the cylinder to provide lubrication of the moving parts in the crankcase and some cooling of the engine.

Abstract translation: 用于二冲程小型发动机的燃料喷射系统具有电荷形成装置，其具有喷射器混合通道，其形成富集的燃料和空气混合物，其被供应到经由端口连接到发动机气缸并且彼此相邻的一端连接的调谐注射器管 结束到发动机曲轴箱。 电荷形成装置具有高速燃料电路，其在宽敞的节气门操作条件下向混合通道供应至少大部分燃料，并且优选地，燃料的一小部分也由在发动机怠速条件下的怠速燃料回路供应 优选地将基本上所有的燃料供应给发动机。 电荷形成装置的独立入口气流通道还主要将空气供给到发动机的曲轴箱以转移到气缸。 在发动机敞开节流条件下，优选地，其中具有油的非常少量的燃料通过入口空气流动通道供应到曲轴箱并被传送到气缸，以提供曲轴箱中的运动部件的润滑和发动机的一些冷却。