公开(公告)号：US4824613A

公开(公告)日：1989-04-25

申请号：US147747

申请日：1988-01-25

Applicant: William A. Scott ,  Mark A. Hutchinson

Inventor： William A. Scott ,  Mark A. Hutchinson

IPC: F02M1/16 ,  F02M17/04 ,  F02M37/20

CPC classification number: F02M1/16 ,  F02M17/04 ,  F02M37/20 ,  Y10S261/08 ,  Y10S261/68 ,  Y10S261/81

Abstract: A vapor return primer for priming and regulating pressure in a carburetor is disclosed. The vapor return primer includes a housing having an inlet and an outlet. The inlet is coupled with the high pressure side of the carburetor. The outlet is coupled with a fuel tank. A resilient flexible membrane is coupled with the housing for moving fluid through the inlet and outlet to prime the carburetor. A pressure relief mechanism is coupled with the housing to provide one-way flow from the housing through the outlet to the fuel tank during priming. Also, the pressure refief mechanism regulates the carburetor pressure when the internal combustion engine is in a continuous running mode.

Abstract translation: 公开了一种用于起动和调节化油器压力的蒸气回流底漆。 蒸汽回流底漆包括具有入口和出口的壳体。 入口与化油器的高压侧相连。 出口与燃油箱相连。 弹性柔性膜与壳体联接，用于通过入口和出口移动流体以引导化油器。 压力释放机构与壳体联接以在起动期间提供从壳体通过出口到燃料箱的单向流动。 此外，当内燃机处于连续运行模式时，压力释放机构调节化油器的压力。

公开(公告)号：US4814114A

公开(公告)日：1989-03-21

申请号：US222261

申请日：1988-07-21

Applicant: Richard P. Charmley

Inventor： Richard P. Charmley

IPC: F02M17/00 ,  F02M1/16 ,  F02M17/04

CPC classification number: F02M1/16 ,  F02M17/04 ,  Y10S261/08 ,  Y10S261/68

Abstract: A diaphragm-controlled carburetor which includes a diaphragm positioned in a chamber and dividing the chamber into wet and dry chamber sides. A valve is positioned in the wet chamber side, and is responsive to the diaphragm for feeding fuel to fuel jets and thence to a fuel/air passage. The dry chamber side is connected to receive pressure pulses from the engine crankcase through a three-position valve. The valve has orifices selectively interconnected by a rotatable valve disc for feeding pulses at first intensity to provide an enriched fuel/air mixture for starting, at a second lesser intensity to provide a less enriched fuel-air mixture for engine warm-up, and to block pressure pulses from the dry side of the control diaphragm.

Abstract translation: 隔膜控制化油器，其包括定位在腔室中的隔膜，并将腔室分为湿和干腔室侧。 阀位于湿室侧，并且响应于隔膜将燃料供给到燃料喷嘴，从而进入燃料/空气通道。 干腔侧被连接以通过三位置阀从发动机曲轴箱接收压力脉冲。 阀具有通过可旋转的阀盘选择性地相互连接的孔口，用于以第一强度供给脉冲，以提供富集的燃料/空气混合物，以第二较小的强度启动，以提供较少富集的用于发动机预热的燃料 - 空气混合物，以及 从控制膜片的干燥侧堵住压力脉冲。

公开(公告)号：US4765933A

公开(公告)日：1988-08-23

申请号：US74043

申请日：1987-07-16

Applicant: Akira Nagashima

Inventor： Akira Nagashima

IPC: F02D9/10 ,  F02M9/12 ,  F02M19/00 ,  F02M17/04

CPC classification number: F02M9/125 ,  F02D9/10 ,  Y10S261/68

Abstract: A carburetor has a butterfly valve comprising a first valve plate portion for opening and closing a portion of an intake passage adjacent to a fuel nozzle and a second valve plate portion for opening and closing a portion of the intake passage located farther from the fuel nozzle, wherein the first valve plate portion is first opened from a position of closing the intake passage up to a predetermined angle, and, when the first valve plate portion is opened by more than the predetermined angle, the second valve plate portion is opened from a position of closing the intake passage.

Abstract translation: 化油器具有蝶阀，该蝶阀包括用于打开和关闭与燃料喷嘴相邻的进气通道的一部分的第一阀板部分和用于打开和关闭位于更远离燃料喷嘴的进气通道的一部分的第二阀板部分， 其特征在于，所述第一阀板部从所述进气通路的关闭位置首先打开到预定角度，并且当所述第一阀板部被打开超过所述规定角度时，所述第二阀板部从位置 关闭进气通道。

公开(公告)号：US4735751A

公开(公告)日：1988-04-05

申请号：US36108

申请日：1987-04-08

Applicant: Thomas G. Guntly

Inventor： Thomas G. Guntly

IPC: F02M1/16 ,  F02M17/04

CPC classification number: F02M17/04 ,  F02M1/16 ,  Y10S261/08 ,  Y10S261/68

Abstract: A priming system for the carburetor-fuel pump of an internal combustion engine. The priming system includes a manually actuatable primer that is connected to the fuel chamber of the fuel pump, and priming fuel flows through a primer check valve either directly to an orifice in the carburetor throat or through the metering chamber, which communicates with the carburetor throat through main and idle orifices. In one embodiment, successive actuations of the primer bulb functions to purge the fuel pump, primer and priming lines of air and fill them with liquid fuel so that continued pumping injects priming fuel into the carburetor throat. In an alternative embodiment, the fuel pump, primer and priming lines are similarly charged but the metering chamber is also charged with fuel and the excess fuel is pumped therethrough and into the carburetor throat through the main and idle orifices. The metering chamber is left with an excess charge of fuel that results in richer operation during cranking and initial engine operation.

Abstract translation: 一种用于内燃机的化油器 - 燃油泵的起动系统。 起动系统包括可手动致动的底漆，其连接到燃料泵的燃料室，并且起动燃料直接通过底漆止回阀流入化油器喉部中的孔口或通过与化油器喉部连通的计量室 通过主要和空闲的孔。 在一个实施例中，底漆灯泡的连续致动功能用于清除燃料泵，底漆和空气的填充线，并用液体燃料填充它们，使得持续的泵送将引燃燃料喷射到化油器喉部中。 在替代实施例中，燃料泵，底漆和起动线路类似地充电，但是计量室还带有燃料，并且多余的燃料被泵送通过其中并通过主和空闲的孔口进入化油器喉管。 计量室留下过量的燃料，导致起动和初始发动机运行时的运行更加丰富。

公开(公告)号：US4508068A

公开(公告)日：1985-04-02

申请号：US502474

申请日：1983-06-09

Applicant: Lloyd H. Tuggle ,  Michael J. Ferlito

Inventor： Lloyd H. Tuggle ,  Michael J. Ferlito

IPC: F02B63/02 ,  F02B75/02 ,  F02B75/16 ,  F02M1/16 ,  F02M17/04 ,  F02N17/00

CPC classification number: F02M1/16 ,  F02B63/02 ,  F02B75/16 ,  F02M17/04 ,  F02B2075/025 ,  Y10S261/08 ,  Y10S261/68 ,  Y10S261/73

Abstract: A fuel priming system for spark ignited internal combustion engines includes a manually actuated plunger pump for delivering liquid fuel from a tank to a reservoir chamber formed in part by a flexible diaphragm. A fuel injection passage leads from the reservoir chamber through a flow restricting orifice to an injection point formed in the engine intake air flow passage downstream of the carburetor venturi. The injection system provides for enriching the fuel-air mixture during cold starting while minimizing the chance of engine flooding. The finite fuel volume in the reservoir chamber also provides a sufficient quantity of fuel for automatic control of a rich fuel-air mixture during engine warm-up.

Abstract translation: 用于火花点火内燃机的燃料起动系统包括手动致动的柱塞泵，用于将液体燃料从罐输送到由柔性隔膜部分形成的储存室。 燃料喷射通道从储存室通过流量限制孔导向形成在化油器文丘里管下游的发动机进气流动通道中的喷射点。 注射系统提供在冷起动期间丰富燃油混合气，同时最大限度地减少发动机淹水的机会。 在发动机预热期间，储存室中的有限燃料体积还提供足够量的燃料用于自动控制富燃料 - 空气混合物。

公开(公告)号：US4475487A

公开(公告)日：1984-10-09

申请号：US445407

申请日：1982-11-30

Applicant: Takashi Fukuoka ,  Yoshiaki Nagao

Inventor： Takashi Fukuoka ,  Yoshiaki Nagao

IPC: F02M35/10 ,  B27B17/00 ,  F01L3/20 ,  F02B63/02 ,  F02B75/02 ,  F02B75/18 ,  F02B75/24 ,  F02M35/104 ,  F02B33/04 ,  F02M9/10

CPC classification number: F02M35/1019 ,  B27B17/00 ,  F01L3/205 ,  F02M35/10032 ,  F02M35/1017 ,  F02M35/10281 ,  F02M35/1165 ,  F02B2075/025 ,  F02B2075/1808 ,  F02B63/02 ,  F02B75/243 ,  Y10S261/68

Abstract: A crank-case pre-compression type 2-cycle engine internal combustion has an intake opening formed in the wall of a crank case and provided with a reed valve therein, and a carburetor disposed at a rearward offset from the intake port. The carburetor is connected to the inlet port through a joint-pipe. The joint-pipe has a mixture passage formed therein, an intermediate contracted portion and a partition plate extending along the axis of the mixture passage. The portion of the mixture passage near the outlet opening thereof is curved to cross the intake port substantially at a right angle to the latter.

Abstract translation: 曲轴箱预压缩型2循环发动机内燃具有形成在曲轴箱的壁上并在其中设置有簧片阀的进气口，以及设置在从进气口向后偏移的化油器。 化油器通过连接管连接到进气口。 连接管具有形成在其中的混合通道，中间收缩部分和沿着混合物通道的轴线延伸的隔板。 混合物通道在其出口开口附近的部分弯曲成大致与后者成直角相交。

公开(公告)号：US4046844A

公开(公告)日：1977-09-06

申请号：US701386

申请日：1976-06-30

Applicant: Paul Ellis Rickert

Inventor： Paul Ellis Rickert

IPC: F02M17/00 ,  F02M17/04 ,  F02M19/00

CPC classification number: F02M17/04 ,  F02M17/00 ,  Y10S261/39 ,  Y10S261/68

Abstract: A carburetor construction is disclosed which includes a plurality of plate members stacked one upon the other, the plates including recesses and openings which define fuel channels, and cavities which nestibly receive various components of the carburetor, the components being designed so as to facilitate assembly with each other.

Abstract translation: 公开了一种化油器结构，其包括彼此堆叠的多个板构件，所述板包括限定燃料通道的凹部和开口，以及嵌套地容纳化油器各种部件的空腔，该部件被设计成便于与 彼此。

公开(公告)号：US4003968A

公开(公告)日：1977-01-18

申请号：US627871

申请日：1975-10-31

Applicant: Paul E. Rickert

Inventor： Paul E. Rickert

IPC: F02M17/04 ,  F02M17/42

CPC classification number: F02M17/42 ,  F02M17/04 ,  Y10S261/57 ,  Y10S261/68

Abstract: The disclosure embraces a charge forming apparatus or carburetor and method of operation thereof wherein the charge forming apparatus is of modular construction and is inclusive of a body construction and a fluid flow control construction associated with the body construction, the fluid flow control construction being of laminar character fashioned with open areas or passages accommodating fluid flow or transfer, the fluid flow control being of a character enabling the interchangeability of fluid flow control laminations having different or modified patterns or arrangements of open areas or passages whereby the method of operation or the operating or metering characteristics of the charge forming apparatus may be changed or modified without alteration of the body construction. The provision of interchangeable fluid flow control laminations or members facilitates standardization of the body whereby the standardized charge forming apparatus may be rendered usable with engines of different sizes and operating characteristics by employing a fluid flow control construction having a selected orientation of open areas or passages accommodating fluid flow.

Abstract translation: 本发明包括电荷形成装置或化油器及其操作方法，其中电荷形成装置是模块化结构，并且包括与体构造相关的体结构和流体流动控制结构，流体流动控制结构是层流 具有开放区域或容纳流体流动或转移的通道的流体流动控制具有使得具有不同或改变的图案或开放区域或通道的布置的流体流动控制叠片的可互换性的特征，由此操作方法或操作或 可以改变或修改电荷形成装置的计量特性而不改变体结构。 提供可互换流体流动控制层压体或构件有助于标准化体，借此通过采用流体流动控制结构，可以使标准化的电荷形成装置可用于具有不同尺寸和操作特性的发动机，该流体流动控制结构具有选定的开放区域或通道容纳 流体流动。

公开(公告)号：US4000224A

公开(公告)日：1976-12-28

申请号：US680208

申请日：1976-04-26

Applicant: Harold E. Phelps

Inventor： Harold E. Phelps

IPC: F02M17/04 ,  F02M7/16 ,  F02M7/22

CPC classification number: F02M17/04 ,  F02B2275/14 ,  Y10S261/19 ,  Y10S261/57 ,  Y10S261/68

Abstract: A carburetor and fuel feed device for small internal combustion engines incorporating a pumping section which receives fuel from a supply and delivers the required amounts for the range of operation between high and low speed operation with any excess being returned to the source of supply. A control device is employed which permits deceleration from high to low speed operation without flooding by instantaneously preventing the supply of fuel for high speed operation in response to movement of the throttle valve to an idle or low speed position.

公开(公告)号：US3992490A

公开(公告)日：1976-11-16

申请号：US277637

申请日：1972-08-03

Applicant: Walter P. Preston

Inventor： Walter P. Preston

IPC: F02M17/04

CPC classification number: F02M17/04 ,  Y10S261/38 ,  Y10S261/68 ,  Y10S411/947

Abstract: The disclosure embraces relatively movable or adjustable members or elements forming control components of a charge forming apparatus or carburetor wherein one or more members or elements are adjustable or movable relative to a mounting means, the disclosure embracing a method and arrangement wherein substantially spherical bodies or balls of deformable resinous or plastic material associated with the movable members or elements are disposed to establish a substantially constant amount or degree of friction between a mounting means and one or more of the movable or adjustable members or elements to assure retention of the movable members or elements in adjusted positions.

Abstract translation: 本公开包括相对可移动或可调节的构件或元件，其形成电荷形成装置或化油器的控制部件，其中一个或多个构件或元件相对于安装装置是可调节的或可移动的，该公开内容包括一种方法和装置，其中基本上是球体或球 与可移动部件或元件相关联的可变形的树脂或塑料材料被设置成在安装装置和一个或多个可移动或可调整的部件或元件之间建立基本上恒定的摩擦程度，以确保可移动部件或元件的保持 在调整位置。