公开(公告)号：EP1207294A3

公开(公告)日：2003-06-18

申请号：EP01126806.7

申请日：2001-11-09

Applicant: WALBRO CORPORATION

Inventor： Ashcraft, Jerry J. ,  Govea, Jose ,  Richter, Karl P. ,  Sherman, Randy M.

IPC: F02M17/04 ,  F02M1/16

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

Abstract: A diaphragm type carburetor which has a purge system to remove air and fuel vapor from the carburetor and to fill it with liquid fuel prior to starting an engine fed by the carburetor. The purge system has a primer valve actuated by moving a choke valve of the carburetor to its closed position to inject a small volume of liquid fuel into a throttle bore to provide a richer fuel and air mixture to the engine to facilitate starting it. Desirably, the small volume of liquid fuel is injected into the throttle bore in response to closing of the choke valve without requiring any additional steps such as depressing a button on the carburetor, to do so. Preferably, the choke valve is carried on a shaft which has at least one detent formed therein to provide a camming surface which actuates the primer valve as the choke valve is rotated from its open position to its closed position. Preferably, the choke valve shaft has a pair of detents. The primer valve is partially received by one detent when the choke valve is fully opened to close the primer valve and prevent any fluid flow therethrough. A second detent partially receives the primer valve to also close the primer valve after the choke valve has been moved to its fully closed position. The camming surface is disposed between the two detents relative to the movement of the choke valve to temporarily open the primer valve and inject the desired quantity of liquid fuel into the throttle bore to assist starting the engine when the choke valve is moved between its open and closed positions.

Abstract translation: 隔膜式化油器具有吹扫系统，以从化油器除去空气和燃料蒸气，并在起动由化油器供给的发动机之前用液体燃料填充。 吹扫系统具有通过将化油器的阻流阀移动到其关闭位置而致动的底漆阀，以将少量液体燃料注入到节流孔中，以向发动机提供更丰富的燃料和空气混合物以便于启动。 理想地，响应于阻塞阀的关闭而将小体积的液体燃料注入到节流孔中，而不需要任何附加步骤，例如按下化油器上的按钮，这样做。 优选地，阻流阀被承载在具有形成在其中的至少一个制动器的轴上，以提供当阻风阀从其打开位置旋转到其关闭位置时致动底漆阀的凸轮表面。 优选地，阻风阀轴具有一对制动器。 当止回阀完全打开以关闭底漆阀并防止任何流体流过其中时，底漆阀部分地被一个制动器容纳。 在阻塞阀已经移动到其完全关闭位置之后，第二制动器部分地接收底漆阀以还关闭底漆阀。 凸轮表面相对于阻塞阀的运动设置在两个棘爪之间，以临时打开底漆阀，并将期望量的液体燃料喷射到节流孔中，以在阻塞阀在其打开和关闭之间移动时帮助启动发动机 封闭职位。

公开(公告)号：KR1020160140693A

公开(公告)日：2016-12-07

申请号：KR1020167027306

申请日：2014-04-01

Applicant: 피아지오 & 씨. 에스.피.에이.

Inventor： 피악챠벤토,마르켈로 ,  캅펠리니,안토니오

IPC: F02M21/04 ,  F02M1/08 ,  F02B31/00

CPC classification number: F02M21/042 ,  F02B2031/003 ,  F02M1/08 ,  Y02T10/32

Abstract: LPG, 메탄, 수소등과같은대체연료로써동력공급된흡열모터(32)용단일연료공급시스템(4)은, 메인흡입파이프(20)가제공된장치몸체(16), 상기메인흡입파이프(20)를적어도부분적으로차단하고폐색하는적어도하나의셔터(24), 및상기메인흡입파이프(20) 하류에위치된이송파이프(28)를구비한유동조정장치(12), 그리고대체연료의탱크(36)를포함하고, 여기서상기메인흡입파이프(20)는제1 적정농도(a1)에따라혼합되고, 상기탱크(36)로부터나오는대체연료와가연성물질을포함한메인유동을수용한다. 유리하게도, 상기시스템(4)은메인유동과상이한 2차유동이셔터(24)를바이패스하여이송파이프(28)로직접적으로인풋하기위한 2차흡입파이프(44)를포함하고, 상기시스템에는상기탱크(36)와유체연통하는대체연료의농축디퓨져(48)가제공되어, 2차유동을연료와농축하여이를이송파이프(28)로보내며, 제2 적정농도(a2)는메인유동의제1 적정농도(a1) 보다연료농후하다.

Abstract translation: 一种用替代燃料如LPG，甲烷，氢气等供电的吸热马达（32）的单燃料供应系统（4），包括具有装置主体（16）的流量调节装置（12），该装置主体设有主进气管 （20），至少一个截流并且至少部分地阻塞所述主进气管（20）的挡板和位于所述主进气管（20）下游的输送管（28），替代的罐（36） 燃料，其中所述主进气管（20）接收包含来自所述罐（36）的燃烧支撑体和替代燃料的主流，根据第一滴定度（a1）混合。 有利地，系统（4）包括用于将不同于主流的二次流直接输入绕过闸门（24）的输送管（28）中的次级进气管（44），并且设置有富集扩散器 （48），与所述罐（36）流体连接，使得其与燃料二次流丰富并且以更加富含燃料的第二滴定剂（a2）将其输送到输送管（28） 主要流量的第一滴定度（a1）。

公开(公告)号：KR101359220B1

公开(公告)日：2014-02-05

申请号：KR1020127008141

申请日：2010-08-25

Applicant: 미츠비시 쥬고교 가부시키가이샤

Inventor： 마키가즈히로

IPC: F02M7/00 ,  F02D9/02 ,  F02D11/10 ,  F02M7/12

CPC classification number: F02D41/0002 ,  F02D11/105 ,  F02D11/106 ,  F02D2011/104 ,  F02D2200/0404 ,  F02M1/08 ,  F02M7/20 ,  Y02T10/42

Abstract: 기화기의 스로틀 밸브의 개방도와 부하에 맞추어, 초크 밸브를 개폐 구동시키는 것에 의해, 가변적인 연료 분출을 할 수 있도록 하고, 내연 기관의 운전 가능 범위 전역(회전수, 부하)에서 소망의 공연비를 얻는 것에 의해, 저비용, 배기 가스의 클린화 및 연비 절약화시킬 수 있는 내연 기관의 공연비 제어 장치를 제공하는 것을 목적으로 한다. 내연 기관(1)의 흡기로에 배치된 기화기(5)의 초크 밸브(6)의 개방도를 구동 제어하는 제 1 스테핑 모터(8)와, 스로틀 밸브(7)의 개방도를 구동 제어하는 제 2 스텝핑 모터(9)와, 스로틀 밸브(7)의 개방도에 따르는 내연 기관(1)의 회전수의 변화에 근거하여 초크 밸브(6)를 개방도 제어하는 동시에, 내연 기관(1)의 회전수가 일정한 경우는 내연 기관(1)의 부하에 의해 초크 밸브(6)의 개방도를 결정하는 맵에 근거하여 초크 밸브(6)를 개방도 제어하여 소망의 공연비를 얻는 컨트롤러(12)를 구비한다.

公开(公告)号：US09765730B2

公开(公告)日：2017-09-19

申请号：US13806244

申请日：2011-06-28

Applicant: Mikael Larsson ,  Magnus Ottosson ,  Bo Carlsson

Inventor： Mikael Larsson ,  Magnus Ottosson ,  Bo Carlsson

IPC: F02M1/08 ,  F02D41/06 ,  F02M17/04 ,  F02D41/04

CPC classification number: F02M1/08 ,  F02D41/047 ,  F02D41/065 ,  F02D2400/02 ,  F02D2400/04 ,  F02D2400/06 ,  F02M1/10 ,  F02M17/04 ,  F02M19/0235 ,  F02N3/02

Abstract: The invention concerns a method for controlling the fuel supply to an internal combustion engine at start-up, the engine having a fuel supply system. The invention also concerns a carburetor having a fuel supply system including a main fuel path connecting a diaphragm controlled regulating chamber to a main outlet in the region of the venturi section, the main fuel path including an actively controlled fuel valve, and an idling fuel path branching off from the main fuel path downstream of the valve and ending in at least one idling outlet in the region of a throttle valve, the fuel supply system further including a start fuel line starting upstream or downstream of the fuel valve and ending in at least one start fuel outlet to the intake channel.

公开(公告)号：US09062628B2

公开(公告)日：2015-06-23

申请号：US13562833

申请日：2012-07-31

Applicant: Takuo Kase ,  Takeshi Fukawa

Inventor： Takuo Kase ,  Takeshi Fukawa

IPC: F02B33/04 ,  F02B25/00 ,  F02M35/10 ,  F01L7/00 ,  F02M1/08 ,  F02M13/08 ,  F02M21/04

CPC classification number: F02M1/08 ,  F02M13/08 ,  F02M21/04 ,  Y02T10/32

Abstract: A fuel supply system includes an intake flow passage communicating with an intake port of a gas engine, a fuel shut-off valve assembly for blocking a fuel supply passage to prevent supply of a gas fuel to a fuel mixer, a vacuum flow passage communicating with a vacuum actuator of the fuel shut-off valve assembly and a crank chamber of the gas engine, and means for holding the vacuum flow passage open when the gas engine starts, such that a vacuum produced in the crank chamber is used to actuate the vacuum actuator for switching the fuel shut-off valve assembly to an open position allowing supply of the gas fuel to the fuel mixer.

Abstract translation: 燃料供给系统包括与气体发动机的进气口连通的进气流路，用于阻断燃料供给通路以防止向燃料混合器供给气体燃料的燃料切断阀组件，与 燃料切断阀组件的真空致动器和气体发动机的曲柄室，以及用于在气体发动机启动时保持真空流路打开的装置，使得在曲柄室中产生的真空被用于致动真空 致动器，用于将燃料切断阀组件切换到允许向燃料混合器供应气体燃料的打开位置。

公开(公告)号：US20140238343A1

公开(公告)日：2014-08-28

申请号：US13774236

申请日：2013-02-22

Applicant: BRIGGS & STRATTON CORPORATION

Inventor： Casey E. Groh ,  Adam J. Hellman ,  Timothy J. Kwiatkowski ,  Andrew J. Perez ,  Jeff J. Steenbergen ,  Michael R. Visuri

IPC: F02N19/00

CPC classification number: F02M1/02 ,  F02D9/1065 ,  F02D2009/0205 ,  F02M1/08 ,  F02M35/1017 ,  F02N11/087 ,  F02N19/00 ,  F02N2019/002

Abstract: A choke system for an internal combustion engine includes a carburetor having an air intake, a choke valve disposed in the air intake, and a choke lever coupled to the choke valve, wherein the choke valve is movable between a closed position and an open position, a mechanical linkage coupled to the choke lever, and a solenoid attached to the carburetor and coupled to the mechanical linkage so activation of the solenoid moves the choke valve, wherein the solenoid is activated in response to activation of a starter system of an internal combustion engine, thereby moving the choke valve via the mechanical linkage to the closed position.

Abstract translation: 用于内燃机的扼流系统包括具有进气口的化油器，设置在进气口中的扼流阀，以及耦合到阻流阀的扼流杆，其中扼流阀可在关闭位置和打开位置之间移动， 耦合到扼流杆的机械连杆和连接到化油器并连接到机械连杆的螺线管，螺线管的启动使阻塞阀移动，其中螺线管响应于内燃机的起动器系统的启动而被启动 从而将阻塞阀通过机械连杆移动到关闭位置。

公开(公告)号：US08776754B2

公开(公告)日：2014-07-15

申请号：US13227680

申请日：2011-09-08

Applicant: Donald J. Lewis ,  Thomas G. Leone ,  Ralph Wayne Cunningham

Inventor： Donald J. Lewis ,  Thomas G. Leone ,  Ralph Wayne Cunningham

IPC: F02M1/08 ,  F02D9/02

CPC classification number: F02D9/02 ,  F02B2075/125 ,  F02D13/0234 ,  F02D13/0265 ,  F02D13/0269 ,  F02D29/02 ,  F02D31/002 ,  F02D41/0002 ,  F02D41/0225 ,  F02D41/042 ,  F02D41/062 ,  F02D41/064 ,  F02D2041/0095 ,  F02D2200/021 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/602 ,  F02D2200/703 ,  F02M1/08 ,  Y02T10/142 ,  Y02T10/42

Abstract: An engine system and method for improving engine starting are disclosed. In one example, two engine cylinder port throttles are adjusted differently during engine starting. The system and method may improve engine torque control during an engine start.

Abstract translation: 公开了一种用于改善发动机启动的发动机系统和方法。 在一个示例中，在发动机起动期间，两个发动机气缸端口节流阀被不同地调节。 该系统和方法可以在发动机起动期间改善发动机扭矩控制。

公开(公告)号：US20130133618A1

公开(公告)日：2013-05-30

申请号：US13806244

申请日：2011-06-28

Applicant: Mikael Larsson ,  Magnus Ottosson ,  Bo Carlsson

Inventor： Mikael Larsson ,  Magnus Ottosson ,  Bo Carlsson

IPC: F02M1/08

CPC classification number: F02M1/08 ,  F02D41/047 ,  F02D41/065 ,  F02D2400/02 ,  F02D2400/04 ,  F02D2400/06 ,  F02M1/10 ,  F02M17/04 ,  F02M19/0235 ,  F02N3/02

Abstract: The invention concerns a method for controlling the fuel supply to an internal combustion engine at start-up, the engine having a fuel supply system. The invention also concerns a carburetor having a fuel supply system including a main fuel path connecting a diaphragm controlled regulating chamber to a main outlet in the region of the venturi section, the main fuel path including an actively controlled fuel valve, and an idling fuel path branching off from the main fuel path downstream of the valve and ending in at least one idling outlet in the region of a throttle valve, the fuel supply system further including a start fuel line starting upstream or downstream of the fuel valve and ending in at least one start fuel outlet to the intake channel.

Abstract translation: 本发明涉及一种控制在启动时对内燃机的燃料供给的方法，该发动机具有燃料供应系统。 本发明还涉及一种具有燃料供给系统的化油器，该燃料供给系统包括将文丘里管区域的区域中的隔膜受控调节室连接到主出口的主燃料通路，主燃料路径包括主动控制的燃料阀，以及空转燃料路径 从阀门下游的主燃料路径分支并在节流阀区域中的至少一个空转出口终止，燃料供应系统还包括从燃料阀的上游或下游开始并至少终止于燃料阀的起始燃料管路 一个启动燃油出口进入通道。

公开(公告)号：US08448622B2

公开(公告)日：2013-05-28

申请号：US12535215

申请日：2009-08-04

Applicant: Jason Raasch

Inventor： Jason Raasch

IPC: F02N99/008 ,  F02D9/107 ,  F02M1/04 ,  F02M5/08

CPC classification number: F02M1/08 ,  F02D2009/0216

Abstract: An internal combustion engine that includes a carburetor having a choke valve and an actuator configured to move the choke valve between a closed choke position and an open choke position. A passageway is configured to direct a pressure pulse from the engine into a fuel chamber of the carburetor. The engine further includes a priming valve at least partially located within the passageway. The priming valve is configured to move between an open primer position that allows the pressure pulse to enter the fuel chamber through the passageway and a closed primer position that substantially restricts the pressure pulse from entering the fuel chamber through the passageway. The priming valve is configured to move between the open primer position and the closed primer position by the actuator when the actuator moves the choke valve between the closed choke position and the open choke position, respectively.

Abstract translation: 一种内燃机，其包括具有阻塞阀的化油器和致动器，所述致动器构造成使阻塞阀在闭合阻塞位置和开放阻塞位置之间移动。 通道构造成将来自发动机的压力脉冲引导到化油器的燃料室中。 发动机还包括至少部分地位于通道内的起动阀。 起动阀构造成在允许压力脉冲通过通道进入燃料室的开放底漆位置和基本上限制压力脉冲通过通道进入燃料室的封闭底漆位置之间移动。 启动阀被配置为当致动器分别在闭合的阻塞位置和打开的阻塞位置之间移动阻塞阀时，通过致动器在打开的底漆位置和闭合的底漆位置之间移动。

公开(公告)号：US20120199099A1

公开(公告)日：2012-08-09

申请号：US13501831

申请日：2010-08-25

Applicant: Kazuhiro Maki

Inventor： Kazuhiro Maki

IPC: F02M1/02

CPC classification number: F02D41/0002 ,  F02D11/105 ,  F02D11/106 ,  F02D2011/104 ,  F02D2200/0404 ,  F02M1/08 ,  F02M7/20 ,  Y02T10/42

Abstract: It is intended to provide an air-fuel ratio control device for a carburetor, which is capable of variably inject fuel by opening and closing a choke valve in accordance with an opening degree of a throttle valve and the load and which is capable of achieving low cost, clean emission and fuel saving by attaining a desired air-fuel ratio in an entire operational range (rotation speed, load) of the internal combustion engine. The air-fuel ratio control device is provided with, but not limited to, a choke valve 6 arranged in an intake path of an internal combustion engine 1, a throttle valve 7 arranged in the intake path on a downstream side of the choke valve, a first stepper motor 8 driving the choke valve 6 to adjust an opening degree of the choke valve 6, a second stepper motor 9 driving the throttle valve 7 to adjust an opening degree of the throttle valve 7, and a controller 12 controlling the opening degree of the choke valve 6 in accordance with a change of a rotation speed of the internal combustion engine 1 based on the opening degree of the throttle valve 7, and, when the rotation speed of the internal combustion engine 1 is constant, controls the opening degree of the choke valve 6 based on a map which determines the opening degree of the choke valve 6 from load of the internal combustion engine 1, so as to achieve a desired air-fuel ratio.

Abstract translation: 旨在提供一种用于化油器的空燃比控制装置，其能够通过根据节流阀的开度和负载打开和关闭阻塞阀来可变地喷射燃料，并且能够实现低 通过在内燃机的整个工作范围（转速，负荷）下实现所需的空燃比来节省成本，清洁排放和节省燃料。 空燃比控制装置设置有但不限于设置在内燃机1的进气通路中的节流阀6，设置在阻流阀下游侧的进气路径中的节流阀7， 第一步进马达8驱动阻流阀6以调节阻流阀6的开度;驱动节流阀7以调节节流阀7的开度的第二步进马达9;以及控制开度的控制器12 根据节气门7的开度根据内燃机1的转速的变化，当内燃机1的转速恒定时，控制开度 基于从内燃机1的负荷确定阻流阀6的开度的映射图，以获得期望的空燃比。