公开(公告)号：US20070221158A1

公开(公告)日：2007-09-27

申请号：US11723983

申请日：2007-03-23

Applicant: Olaf Schmidt ,  Andreas Schulz ,  Jan Kurzenberger

Inventor： Olaf Schmidt ,  Andreas Schulz ,  Jan Kurzenberger

IPC: F02M1/00 ,  F02M1/04 ,  F02M5/08

CPC classification number: F02M1/02 ,  F02D2009/0279 ,  F02M1/10 ,  F02M1/16 ,  F02M17/04

Abstract: A carburetor (1) for an internal combustion engine has an intake channel section (3) wherein a throttle element and a choke element are supported to pivot about respective rotational axes (34, 35). The carburetor (1) has a starter unit which has an operating position, an off position and at least one start position. In the start position, the starter unit fixes defined positions of the throttle element and the choke element. A simple manipulability and a multifaceted operational use of the carburetor (1) are achieved when the starter unit includes an actuating lever (29, 69) and an intermediate lever (18, 68) having respective rotational axes (28, 37) which are at a distance (c) to each other at least at the elevation of the intermediate lever (18, 68) and when the actuating lever (29, 69) acts on the throttle element via the intermediate lever (18, 68).

Abstract translation: 用于内燃机的化油器（1）具有进气通道部分（3），其中节流元件和扼流元件被支撑以围绕各个旋转轴线（34,35）枢转。 化油器（1）具有起动器单元，其具有操作位置，关闭位置和至少一个起始位置。 在起始位置，起动器单元固定节流元件和扼流圈元件的限定位置。 当起动器单元包括致动杆（29,69）和具有各自的旋转轴线（28,37）的中间杆（18,68）时，实现化油器（1）的简单的可操作性和多方面的操作使用， 至少在中间杆（18,68）的高度处彼此间隔（c），并且当致动杆（29,69）经由中间杆（18,68）作用在节流元件上时。

公开(公告)号：US20070045878A1

公开(公告)日：2007-03-01

申请号：US11466464

申请日：2006-08-23

Applicant: Jochen Gantert ,  Gerhard Osburg

Inventor： Jochen Gantert ,  Gerhard Osburg

IPC: F02M1/04

CPC classification number: F02M1/02 ,  F02B2075/025 ,  F02D9/10 ,  F02D2009/0244 ,  F02D2009/0272

Abstract: A carburetor has a housing with intake channel section. A throttle element and a choke element are arranged in the intake channel section and are adjustable between a closed position in which a flow cross-section of the intake channel is substantially closed and an open position in which the flow cross-section of the intake channel is substantially released. The choke element has a start position in which the flow cross-section of the intake channel is at least partially closed. A coupling device couples the throttle element to the choke element when the choke element is in the start position. The choke element has an enriching position. The coupling device has an actuator that moves the choke element into the enriching position when the throttle element is moved, starting from the start positions of the throttle element and of the choke element, toward the open throttle position of the throttle element.

Abstract translation: 化油器具有带有进气通道部分的壳体。 节流元件和扼流元件布置在进气通道部分中，并且可在进气通道的流动横截面基本上关闭的关闭位置和进气通道的流动横截面的打开位置之间调节 基本释放。 扼流元件具有起始位置，其中进气通道的流动横截面至少部分关闭。 当扼流元件处于起始位置时，耦合装置将节流元件耦合到扼流元件。 扼流元件具有丰富的位置。 联接装置具有致动器，当节气门元件从节气门元件和扼流圈元件的起始位置朝向节流元件的打开的节气门位置移动时，将扼流元件移动到富集位置。

公开(公告)号：US20050098907A1

公开(公告)日：2005-05-12

申请号：US10467451

申请日：2001-03-12

Applicant: Karl Richard ,  Bruno Schuehmacher

Inventor： Karl Richard ,  Bruno Schuehmacher

IPC: F02B61/00 ,  F02D41/06 ,  F02M1/04 ,  F02M1/10 ,  F02M5/00

CPC classification number: F02M1/04 ,  F02B61/00 ,  F02D41/064 ,  F02M1/10 ,  F02M5/00

Abstract: An automatic carburetor (20) enrichment system that controls the air-fuel mixture during cold start of an engine (10) having a carburetor including a fuel bowl (22) and an induction passage (23), includes a sensor (50) that provides a signal indicative of an engine temperature at engine start, a fuel line (30) connected between the fuel bowl (22) and the induction passage, a solenoid valve (40) disposed in the fuel line, and a controller (10) that receives the signal and sets a duty cycle of the solenoid valve associated with the engine temperature to increase the air-fuel ratio of the air-fuel mixture at engine start. The automatic carburetor enrichment system reduces cranking time during cold start, eliminates the need for driver input during cold start, prevents engine stalling without assistance from the operator during the warm up phase, provides a simpler, more cost effective and reliable carburetor enrichment, provides self-drowning protection without the use of an electronic idle switch and eliminates the risk of engine drowning when the engine is cranked with the choke ON and the ignition switches OFF.

Abstract translation: 一种自动化油器（20）富集系统，其在具有包括燃料碗（22）和进气通道（23）的化油器的发动机（10）的冷启动期间控制空气 - 燃料混合物，包括传感器（50） 指示发动机起动时的发动机温度的信号，连接在燃料碗（22）和进气通道之间的燃料管路（30），设置在燃料管路中的电磁阀（40），以及控制器（10） 信号并设定与发动机温度相关联的电磁阀的占空比，以增加发动机起动时的空气燃料混合物的空燃比。 自动化油器浓缩系统减少冷起动时的启动时间，在冷启动期间不需要驱动器输入，防止发动机在暖机阶段无需操作人员的帮助停机，提供更简单，更具成本效益和更可靠的化油器浓缩，提供自动化 在不使用电子怠速开关的情况下进行淹没保护，并消除了发动机在扼流器打开并且点火开关关闭时起动发动机淹没的风险。

公开(公告)号：US6059271A

公开(公告)日：2000-05-09

申请号：US84790

申请日：1998-05-27

Applicant: Reinhard Gerhardy

Inventor： Reinhard Gerhardy

IPC: F02M1/06 ,  F02D9/02 ,  F02M1/04 ,  F02M17/04

CPC classification number: F02M17/04 ,  F02M1/046 ,  F02D2009/025 ,  Y10S261/68

Abstract: The invention is directed to a membrane carburetor which includes an intake channel having a throttle flap which is pivotally journalled. The carburetor also includes a control chamber from which fuel can be supplied to the intake channel. A valve is mounted in an ancillary channel and a corresponding adjustment of the throttle flap results in dependence upon the opening and closing position.

Abstract translation: 本发明涉及一种膜化油器，其包括具有枢转轴颈的节流阀的进气通道。 化油器还包括控制室，燃料可从该控制室供给到进气通道。 阀安装在辅助通道中，并且相应的节流阀瓣的调节取决于打开和关闭位置。

公开(公告)号：US5378411A

公开(公告)日：1995-01-03

申请号：US163795

申请日：1993-12-09

Applicant: Takahiro Iwaki ,  Michihiro Suda

Inventor： Takahiro Iwaki ,  Michihiro Suda

IPC: F02M1/04 ,  F02M1/12 ,  F02M1/06

CPC classification number: F02M1/12 ,  Y10S261/08

Abstract: The present disclosure concerns an automatic choke system designed to make a whole carburetor shorter and more compact. The system comprises a case body having a generally inverted L-shape, with a thermo-element housed in a vertical portion of the case body. A thermistor proximate to thermally expanding wax inside the thermo-element is heated up by electric current, which increases its own electric resistance with the increasing heat. A piston is projected from the top end of the thermo-element by the thermal expansion of the wax. A link housed in the horizontal portion of the case body is pivotally supported therein so as to move a moving part downward when the link is acted on by the piston. The moving part pushes down a starter valve to close a by-pass passageway as well as push down a needle to close an auxiliary fuel passageway.

Abstract translation: 本公开涉及一种设计成使整个化油器更短更紧凑的自动扼流系统。 该系统包括具有大致倒L形的壳体，其中容纳在壳体的垂直部分中的热电元件。 靠近热电元件内的热膨胀蜡的热敏电阻被电流加热，这随着热量的增加而增加其自身的电阻。 活塞通过蜡的热膨胀从热电元件的顶端突出。 容纳在壳体的水平部分中的连杆被枢转地支撑在其中，以便当连杆被活塞作用时，使运动部件向下移动。 移动部件向下推动起动阀以关闭旁通通道以及向下推针以关闭辅助燃料通道。

公开(公告)号：US5165371A

公开(公告)日：1992-11-24

申请号：US721099

申请日：1991-06-25

Applicant: Minoru Wada ,  Tetsuo Yamagishi ,  Isao Morooka

Inventor： Minoru Wada ,  Tetsuo Yamagishi ,  Isao Morooka

IPC: F02M1/04 ,  F02M1/16

CPC classification number: F02M1/04 ,  F02M1/16

Abstract: This choke device is characterized in that a starting pump 49 for supplying the fuel in a fuel tank 25 by suction to a starting nozzle port 41, is driven by a fuel motor 53. Starting of the engine is executed by the use of a starting motor or a recoil starter, by supplying the fuel in the fuel tank 25 to the starting nozzle port 41 through sucking of the fuel with the starting fuel pump 49 which is turned by the fuel motor 53, thereby facilitating the ignition by augmenting the concentration of the mixed gas.

公开(公告)号：US5158051A

公开(公告)日：1992-10-27

申请号：US697194

申请日：1991-05-08

Applicant: Minoru Wada ,  Tetsuo Yamagishi ,  Isao Morooka

Inventor： Minoru Wada ,  Tetsuo Yamagishi ,  Isao Morooka

IPC: F02M1/04 ,  F02M1/16

CPC classification number: F02M1/16 ,  F02M1/04

Abstract: Disclosed is a fuel supply system for an internal combustion engine having a fuel tank, a combustion chamber defined in an engine cylinder, and an air intake passage communicating with the combustion chamber. The fuel supply system comprises a main fuel passage communicating the fuel tank and the air intake passage, first supply mechanism provided on the main fuel passage for supplying main fuel from the fuel tank to the air intake passage responsive to the cranking of the engine a starting fuel passage defined separate from the main fuel passage and communicating with the air intake passage and the main fuel passage, and second supply mechanism provided on the starting fuel passage for supplying a predetermined amount of starting fuel into the air intake passage, in addition to the supply of main fuel, responsive to the temperature of the engine cylinder upon starting of the engine. The main fuel passage and the starting fuel passage communicate with the venturi portion of the air intake passage so that the supply of both main fuel and starting fuel into the intake air passage is performed at the venturi portion.

Abstract translation: 公开了一种用于内燃机的燃料供应系统，其具有燃料箱，限定在发动机气缸中的燃烧室和与燃烧室连通的进气通道。 燃料供给系统包括连通燃料箱和进气通道的主燃料通道，设置在主燃料通道上的第一供应机构，用于响应于发动机的起动将主燃料从燃料箱供应到进气通道起动 燃料通道与主燃料通道隔开并与进气通道和主燃料通道连通，以及设置在起动燃料通道上的第二供给机构，用于将预定量的起始燃料供应到进气通道中，除了 在发动机启动时响应发动机气缸的温度供应主燃料。 主燃料通道和起始燃料通道与进气通道的文氏管部分连通，使得在文氏管部分处进行主燃料和起动燃料两者进入进气通道的供应。

公开(公告)号：US5031590A

公开(公告)日：1991-07-16

申请号：US42562

申请日：1987-04-23

Applicant: Yoshihiro Sakurai

Inventor： Yoshihiro Sakurai

IPC: F02M1/04 ,  F02M1/16

CPC classification number: F02M1/16 ,  F02M1/04

Abstract: Several embodiments of charge forming systems for crankcase internal combustion engines each of which embodies a first charge forming device having a main fuel discharge that delivers a fuel/air mixture to the crankcase and a second charge forming device having an idle fuel discharge for delivering a fuel/air mixture to the transfer passage. The second charge forming device is provided with means for providing cold running enrichment. In addition, a priming fuel pump is adapted to supply priming fuel of a higher quality to the first charge forming device upstream of its venturi section. The two charge forming devices are each supplied with air from a common air inlet device that includes at least a air silencer. The communication of the second charge forming device with the air supply device is such so as to preclude the likelihood of fuel leakage if the engine is oriented in other than its normal condition.

Abstract translation: 用于曲轴箱内燃机的电荷形成系统的几个实施例各自体现了具有将燃料/空气混合物输送到曲轴箱的主燃料排放物的第一电荷形成装置和具有用于输送燃料的空燃料排放的第二电荷形成装置 /空气混合物到转运通道。 第二电荷形成装置设置有用于提供冷运行浓缩的装置。 此外，起动燃料泵适于将更高质量的起动燃料供应到其文氏管部分上游的第一电荷形成装置。 两个电荷形成装置各自从包括至少一个空气消音器的公共进气装置供应空气。 第二充电成形装置与空气供给装置的通信是这样的，以便如果发动机定向在正常状态之外，则排除燃料泄漏的可能性。

公开(公告)号：US5014673A

公开(公告)日：1991-05-14

申请号：US423020

申请日：1989-10-18

Applicant: Hiroaki Fujimoto ,  Masaki Okazaki

Inventor： Hiroaki Fujimoto ,  Masaki Okazaki

IPC: F02M7/12 ,  F02B61/04 ,  F02D35/00 ,  F02M1/04 ,  F02M1/12 ,  F02M7/093 ,  F02M35/10

CPC classification number: F02M35/10308 ,  F02B61/045 ,  F02M1/04 ,  F02M35/10032 ,  F02M35/10085 ,  F02M35/10183 ,  F02M35/1019 ,  F02M35/10196 ,  F02M35/10275 ,  F02M35/167 ,  F02M7/093

Abstract: A fuel feed device for an internal combustion engine including a main fuel system including a charge forming device that supplies fuel, air requirements to the engine for most running conditions. An automatically operated auxiliary supply system is provided for supplying additional fuel and, in some instances, air to the engine in response to specific running conditions such as cold starting or cold enrichment. This system includes an automatically operated valve for controlling the fuel discharge. A manual override valve is provided that will permit manual selection of fuel enrichment or will shut off the fuel enrichment regardless of the condition of the automatic valve.

Abstract translation: 一种用于内燃机的燃料供给装置，包括主燃料系统，其包括在多数运行条件下向发动机供应燃料，空气需求的充量形成装置。 提供了一种自动操作的辅助供应系统，用于响应于特定的运行条件（例如冷启动或冷浓缩）向附加燃料供应附加燃料，并且在一些情况下将空气供应到发动机。 该系统包括用于控制燃料排放的自动操作阀。 提供手动超控阀，其将允许手动选择燃料浓缩，或者将关闭燃料浓缩，而不管自动阀的状况如何。

公开(公告)号：US4946631A

公开(公告)日：1990-08-07

申请号：US280716

申请日：1988-12-06

Applicant: Charles G. Buford

Inventor： Charles G. Buford

IPC: F02M1/04 ,  F02M3/09 ,  F02M3/12 ,  F02M7/28 ,  F02M9/127 ,  F02M19/10 ,  F02M23/08 ,  F02M23/10 ,  F02M29/14

CPC classification number: F02M3/12 ,  F02M1/043 ,  F02M19/10 ,  F02M23/08 ,  F02M23/10 ,  F02M29/14 ,  F02M3/09 ,  F02M7/28 ,  F02M9/127 ,  Y02T10/146 ,  Y10S261/56

Abstract: A carburetor including a throttle valve for regulating the flow of air through the body of the carburetor and to an engine, with fuel being introduced into the air flow for intermixture therewith, and with the device including an air actuated element which is preferably located downstream of the throttle valve and is adapted to be displaced automatically by the air to different positions varying in correspondence with the rate of air flow through the device, and which forms a restriction varying in size with the rate of air flow and acting to enhance dispersal of the fuel within the air and assure intimate intermixture of the air and fuel for optimum functioning of the engine. The fuel may be premixed with a secondary flow of air before delivery of the fuel and secondary air as a combined stream into the primary flow of air, and the combined stream may be drawn by vacuum into the primary flow of air at the location of the restriction formed by the flow actuated member. Precise control of the amount of fuel which is fed into the primary flow is attained by automatic regulation of a valve controlling the amount of secondary air which is mixed with the fuel. A proper air-fuel ratio may be assured by utilizing movement of the air actuated element to control operation of the secondary air valve. Additional automatic controls for starting and idle purposes are actuated by a vacuum responsive element and a thermostatic element.

Abstract translation: 一种化油器，包括用于调节通过化油器主体和发动机的空气流的节流阀，其中燃料被引入空气流中以与其混合，并且该装置包括空气致动元件，该空气致动元件优选位于 节流阀，并且适于被空气自动地移动到与通过装置的空气流量相对应变化的不同位置，并且其形成尺寸随空气流量变化的限制，并且用于增强分散 空气中的燃料，并确保空气和燃料的密集混合，以发动机的最佳功能。 在将燃料和二次空气作为组合流输送到主要空气流中之前，可以将燃料与二次空气流预混合，并且组合的流可以通过真空被抽吸到主要空气流中 由流动致动构件形成的限制。 通过自动调节控制与燃料混合的二次空气的量​​的阀来实现进给一次流中的燃料量的精确控制。 可以通过利用空气致动元件的运动来控制二次空气阀的操作来确保适当的空燃比。 用于启动和空闲目的的附加自动控制由真空响应元件和恒温元件致动。