公开(公告)号：EP0688948A2

公开(公告)日：1995-12-27

申请号：EP95109219.6

申请日：1995-06-14

Applicant: Walbro Japan, Inc.

Inventor： Kobayashi, Takeshi

IPC: F02M1/04

CPC classification number: F02M1/046 ,  F02M7/08 ,  F02M17/04 ,  F02M19/126 ,  Y10S261/08

Abstract: A carburetor with a main fuel jet and a throttle valve in a mixing passage and an apparatus for automatically supplying an enriched fuel and air mixture when an engine is cranked for starting and initial running of the engine upon starting. The apparatus has a mixing chamber with an air intake passage communicating with the mixing passage upstream of the throttle valve, a fuel inlet passage, and an outlet passage for the fuel and air mixture which communicates with the mixing passage downstream of the throttle valve. A valve for controlling the flow of the enriching fuel and air mixture through the outlet passage is manually movable to its opened position where it is releasably retained by an actuator mechanism operably associated with the throttle shaft for releasing and closing the valve when after the engine starts the throttle valve is initially moved from its idle position toward a full open position of the throttle valve.

Abstract translation: 一种在混合通道中具有主燃料射流和节流阀的化油器，以及用于在发动机起动时用于自动提供富燃料和空气混合物的装置，用于起动时发动机起动和初始运转。 该装置具有混合室，其具有与节流阀上游的混合通道连通的进气通道，燃料入口通道和用于与节流阀下游的混合通道连通的燃料和空气混合物的出口通道。 用于控制通过出口通道的富集燃料和空气混合物的流动的阀门可手动地移动到其打开位置，在该打开位置处，可靠地与致动器机构保持关系，致动器机构可操作地与节流轴相关联，用于在发动机起动之后释放和关闭阀门 节流阀最初从其空转位置向节流阀的完全打开位置移动。

公开(公告)号：EP0209073A3

公开(公告)日：1989-03-22

申请号：EP86109374.8

申请日：1986-07-09

Applicant: Kwik Europe London Limited

Inventor： Diener, Rudolf

IPC: F02M17/16 ,  F02D41/00 ,  F02M7/08 ,  F02M69/06 ,  F02M71/00

CPC classification number: F02M1/16 ,  F02B1/04 ,  F02D35/0053 ,  F02D35/0069 ,  F02M7/08 ,  F02M7/133 ,  F02M17/16 ,  F02M69/06

Abstract: A rotor assembly is driven by an airstream which by a centrifugal pump forces a measured quantity of fuel through a fixed orifice in direct, and substantially linear proportion to the speed of rotation of the rotor and thus to the volume of the driving airstream. The ultimate fuel-air ratio (λ values) is corrected for optimum operation by slightly changing, in response to measure parameters, one of the constituents of the mixture. In one embodiment, the fuel discharge bore (9) of a rotor (7) is so dimensioned that the rotor-type carburetor (2) produces a lean mixture with a λ-value which is constant for all operating points of the internal combustion engine at a value of approximately 1.25. With the fuel-air ratio correction apparatus additional amounts of fuel are brought into the atomization ring (11) of the rotor (7), with which additional amounts the fuel-air ratio in the lean mixture is changed and at the operating points of the Internal combustion engine the λ-values are adjusted to those most favorable with regard to fuel consumption, output and pollutant-free exhaust gases. The fuel-air ratio correction apparatus includes a regulated fuel injection pump (20) with an injection nozzle (39a) directed at the internal wall (13) of the atomization ring (11) from which pump at each pump stroke approximately 50 mm 3 of fuel are delivered, and a regulating device (50) with a pulse generator (40) for driving the fuel injection pump (20) with current pulses of regulated pulse repetition frequency. The regulation of the pulse repetition frequency takes place by means of control signal generators (51, 52, 53, 54, 55) in dependence on operating parameters of the internal combustion engine such as in particular the opening of the throttle valve (18) for the correction of acceleration, the coolant temperature for the cold start fuel-air ratio correction and so on. This simple and reliable fuel-air ratio correction apparatus assures a very accurate fuel dosing. In other embodiments, the volume of air is reduced to enrich the fuel-air ratio, and in another, the velocity of the same volume of air is increased to enrich the fuel-air ratio.

公开(公告)号：EP0257501A2

公开(公告)日：1988-03-02

申请号：EP87111860.0

申请日：1987-08-17

Applicant: Kwik Europe London Limited

Inventor： Hubbard, Elbert Mickey ,  Diener, Rudolf

IPC: F02M69/06

CPC classification number: F02D35/0053 ,  F02B1/04 ,  F02D35/0069 ,  F02M1/16 ,  F02M7/08 ,  F02M7/133 ,  F02M17/16 ,  F02M69/06

Abstract: An injection molded plastic turbine rotor (16a) for a rotor-type carburetor is assembled by simply pressing together upper and lower generally cylindrical sections (50a, 52a). When joined in this manner the two sections (50a, 52a) form in the assembled rotor (16a) an internal circumferential seal (92a) between the two sections (50a, 52a), and an internal passageway system (120a, 122a', 124', 126a) which defines a centrifugal pump mechanism within the turbine rotor (16a). In an alternate embodiment, the rotor includes a third plastic section (160) which is captively retained within the rotor (16a), between the upper and lower sections (50a, 52a) thereof, and is adapted to lockingly receive an end portion of a fuel supply tube (32a) inserted downwardly through a central opening (58a) formed through the upper section (50a).

Abstract translation: 用于转子式化油器的注射成型的塑料涡轮转子（16a）通过简单地将上和下大致圆柱形部分（50a，52a）压在一起来组装。 当以这种方式连接时，两个部分（50a，52a）在组装的转子（16a）中形成在两个部分（50a，52a）之间的内部周向密封件（92a）和内部通道系统（120a，122a'，124a） （126a），其限定了涡轮转子（16a）内的离心泵机构。 在替代实施例中，转子包括第三塑料部分（160），其被固定地保持在转子（16a）内，在其上部和下部（50a，52a）之间，并且适于锁定地接收 燃料供给管（32a）通过穿过上部（50a）形成的中心开口（58a）向下插入。

公开(公告)号：EP0209073A2

公开(公告)日：1987-01-21

申请号：EP86109374.8

申请日：1986-07-09

Applicant: Kwik Europe London Limited

Inventor： Diener, Rudolf

IPC: F02M17/16 ,  F02D41/00 ,  F02M7/08 ,  F02M69/06 ,  F02M71/00

CPC classification number: F02M1/16 ,  F02B1/04 ,  F02D35/0053 ,  F02D35/0069 ,  F02M7/08 ,  F02M7/133 ,  F02M17/16 ,  F02M69/06

Abstract: A rotor assembly is driven by an airstream which by a centrifugal pump forces a measured quantity of fuel through a fixed orifice in direct, and substantially linear proportion to the speed of rotation of the rotor and thus to the volume of the driving airstream. The ultimate fuel-air ratio (λ values) is corrected for optimum operation by slightly changing, in response to measure parameters, one of the constituents of the mixture.
In one embodiment, the fuel discharge bore (9) of a rotor (7) is so dimensioned that the rotor-type carburetor (2) produces a lean mixture with a λ-value which is constant for all operating points of the internal combustion engine at a value of approximately 1.25.
With the fuel-air ratio correction apparatus additional amounts of fuel are brought into the atomization ring (11) of the rotor (7), with which additional amounts the fuel-air ratio in the lean mixture is changed and at the operating points of the Internal combustion engine the λ-values are adjusted to those most favorable with regard to fuel consumption, output and pollutant-free exhaust gases.
The fuel-air ratio correction apparatus includes a regulated fuel injection pump (20) with an injection nozzle (39a) directed at the internal wall (13) of the atomization ring (11) from which pump at each pump stroke approximately 50 mm 3 of fuel are delivered, and a regulating device (50) with a pulse generator (40) for driving the fuel injection pump (20) with current pulses of regulated pulse repetition frequency. The regulation of the pulse repetition frequency takes place by means of control signal generators (51, 52, 53, 54, 55) in dependence on operating parameters of the internal combustion engine such as in particular the opening of the throttle valve (18) for the correction of acceleration, the coolant temperature for the cold start fuel-air ratio correction and so on.
This simple and reliable fuel-air ratio correction apparatus assures a very accurate fuel dosing.
In other embodiments, the volume of air is reduced to enrich the fuel-air ratio, and in another, the velocity of the same volume of air is increased to enrich the fuel-air ratio.

Abstract translation: 转子组件是通过在气流哪通过离心泵通过在直接固定的孔口迫使燃料的测定量，并且基本上线性比例驱动到转子的旋转速度，从而给驱动气流的体积。 最终的燃料空气比（λ值）通过响应稍微改变来测量参数，该混合物的组分中的一个为最佳的操作校正。 在一个，实施例的燃料排出孔（9）的转子（7）是这样定尺寸做了的转子型化油器（2）产生一个与拉姆达贫混合物 - 值全部是用于内燃发动机的所有工作点恒定 以约1.25的值。 与燃料 - 空气比的校正装置的燃料的额外量被带入所述转子（7），利用该附加的量的稀混合物中的燃料 - 空气比被改变的雾化环（11）和在所述工作点 内燃机拉姆达 - 值被调整为那些最有利的关于燃料消耗，输出和无污染的废气。 燃料 - 空气比的校正装置包括一个调节燃料喷射泵（20），其具有从该泵雾化环（11）的内壁（13）针对每个泵冲程约50mm <3的喷射喷嘴（39A） 燃料>被输送，和调节装置（50）与用于驱动燃料喷射泵（20）与调节脉冲重复频率的电流脉冲的脉冲发生器（40）。 脉冲重复频率的调节通过如下发生：在对内燃发动机的操作参数的依赖控制信号发生器（51，52，53，54，55）的方式：例如特别是节流阀（18），用于的开口 加速度的校正，冷却剂温度为冷启动燃料 - 空气比的校正等。 这个简单的和可靠的燃料 - 空气比校正装置保证了非常准确的计量燃料。 在其它实施方案中，空气的体积被减小以丰富的燃料 - 空气比，并且在另一个中，相同体积的空气的速度增加，以丰富的燃料 - 空气比。

公开(公告)号：EP1094215A3

公开(公告)日：2002-05-02

申请号：EP00122316.3

申请日：2000-10-20

Applicant: Walbro Japan, Inc.

Inventor： Aihara, Tamio ,  Ogasawara, Hiroki, Aptm. No. 1, Room No. 30,

IPC: F02M9/08 ,  F02M7/08

CPC classification number: F02M7/08 ,  F02B2075/025 ,  F02M9/08 ,  F02M35/1019 ,  F02M35/108

Abstract: An acceleration device of a carburetor for a two cycle engine with a rotary dual valve which controls air flow through both a scavenging passage and a separate air intake passage each extending through a carburetor body. The carburetor body houses a metering fuel chamber and an air reference chamber defined by a diaphragm between them. Fuel in the metering fuel chamber is discharged through a port into the air intake passage. An acceleration pump has an actuation chamber which communicates with the scavenging passage and a pump chamber which communicates with the air reference chamber and a membrane between them. During engine acceleration the membrane is displaced by a pressure introduced into the actuation chamber to forcibly send air into the air reference chamber from the pump chamber to move, the diaphragm into the metering fuel chamber, and thereby increase the fuel delivered to the air intake passage.

公开(公告)号：EP0688948B1

公开(公告)日：2001-03-21

申请号：EP95109219.6

申请日：1995-06-14

Applicant: Walbro Japan, Inc.

Inventor： Kobayashi, Takeshi

IPC: F02M1/04

CPC classification number: F02M1/046 ,  F02M7/08 ,  F02M17/04 ,  F02M19/126 ,  Y10S261/08

公开(公告)号：EP0768461A3

公开(公告)日：1997-12-17

申请号：EP96115976.1

申请日：1996-10-04

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Balen, Cesare ,  Balen, Gianni ,  Terzi, Alfredo

IPC: F02M7/06

CPC classification number: F02M7/08

Abstract: A carburettor (1) for a controlled-ignition engine (1a) having a float chamber (3) for containing fuel (2) arriving through an inlet duct (5) of the carburettor (1) and for supplying fuel (2) to an outlet (6) of the carburettor (1); the inlet duct (5) being engageable by a needle (20) movable with a body (18) floating in the fuel (2) contained in the chamber (3), and the outlet duct (6) being engageable by a needle (24) controllable by a first cam-and-rocker device (13); a second cam-and-rocker device (14) being movable in phase with the said first device (13) for moving a second body (45) inside the chamber (3) so as cause particular variations in the level of the fuel (2), and to operate a pumping assembly (16) arranged in the chamber (3) itself and operable to supply fuel (2) to the outlet (6) of the carburettor (1).

公开(公告)号：EP0768461A2

公开(公告)日：1997-04-16

申请号：EP96115976.1

申请日：1996-10-04

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Balen, Cesare ,  Balen, Gianni ,  Terzi, Alfredo

IPC: F02M7/06

CPC classification number: F02M7/08

Abstract: A carburettor (1) for a controlled-ignition engine (1a) having a float chamber (3) for containing fuel (2) arriving through an inlet duct (5) of the carburettor (1) and for supplying fuel (2) to an outlet (6) of the carburettor (1); the inlet duct (5) being engageable by a needle (20) movable with a body (18) floating in the fuel (2) contained in the chamber (3), and the outlet duct (6) being engageable by a needle (24) controllable by a first cam-and-rocker device (13); a second cam-and-rocker device (14) being movable in phase with the said first device (13) for moving a second body (45) inside the chamber (3) so as cause particular variations in the level of the fuel (2), and to operate a pumping assembly (16) arranged in the chamber (3) itself and operable to supply fuel (2) to the outlet (6) of the carburettor (1).

Abstract translation: 一种用于控制点火发动机（1a）的化油器（1），其具有用于容纳通过所述化油器（1）的入口管道（5）到达的用于容纳燃料（2）的用于将燃料（2）供应到 化油器（1）的出口（6）; 所述入口管道（5）可由能够与容纳在所述腔室（3）中的燃料（2）中浮动的主体（18）可移动的针头（20）接合，并且所述出口管道（6）可由针（24 ）可由第一凸轮和摇臂装置（13）控制; 第二凸轮和摇臂装置（14）可与所述第一装置（13）同相移动，用于在所述腔室（3）内部移动第二主体（45），从而导致燃料（2）的特定变化 ），并且操作布置在所述腔室（3）中的泵送组件（16），并且可操作地将燃料（2）供应到所述化油器（1）的出口（6）。

公开(公告)号：EP0381801A1

公开(公告)日：1990-08-16

申请号：EP89102488.7

申请日：1989-02-14

Applicant: VDO Adolf Schindling AG

Inventor： Feldinger, Martin, Prof. Dr.

IPC: F02M7/18 ,  F02M9/133

CPC classification number: F02M7/08 ,  F02M7/22 ,  F02M9/133 ,  Y10S261/56

Abstract: Die Erfindung schlägt eine Vorrichtung vor, mit der auf bauliche einfache Art eine Korrektur der Gemischzusammensetzung bei einer Änderung des Belastungszustandes eines Verbrennungsmotors, dem eine Gemischbildungsvorrichtung (4, 6, 8, 9, 11) zugeordnet ist, möglich ist.
Die Vorrichtung zeichnet sich dadurch aus, daß die Gemischbildungsvorrichtung eine Zumeßeinheit (6) für den Kraftstoff mit einer zuflußseitigen Kraftstofförderleitung (5) und einer abflußseitigen Kraftstofförderleitung (7) aufweist, und in der Zumeßeinheit (6) ein beweglich gelagertes Zumeßorgan (18) angeordnet ist, das positionsabhängig variable Kraftstoffdurchtrittsquerschnitte in der Zumeßeinheit freigibt, wobei die Zumeßeinheit über eine mittels eines beweglichen Ausgleichselementes (33) dichtend verschlossene Öffnung (31) mit einem Ausgleichsraum (32) verbunden ist, der über eine Zweigleitung (34) mit der abflußseitigen Kraftstofförderleitung verbunden ist, sowie das Zumeßorgan und das Ausgleichselement bewegungsschlüssig miteinander gekoppelt sind, derart, daß eine Bewegung des Zumeßorganes in Richtung eines vergrößerten Kraftstoffdurchtrittsquerschnittes zu einer den Ausgleichsraum verkleinernden Bewegung des Ausgleichselementes und eine Bewegung des Zumeßorgans in Richtung eines verkleinerten Kraftstoffdurchtrittsquerschnittes zu einer den Ausgleichsraum vergrößernden Bewegung des Ausgleichselementes führt.

Abstract translation: 本发明提出了使得可以通过结构简单的手段来校正与一个形成混合物的设备（4，6，8，9，11）相关联的内燃机的负载变化的混合物的组合物的装置。 ... 的装置是DASS形成混合物的设备具有一个计量单元（6），用于与供给侧燃料输送管内的燃料（5）和一个排出侧燃料输送管线（7），和 一个可移动地支撑计量元件（18）在所述计量单元（6），该元件被设置在清除所述计量单元中的位置依赖性可变燃料的流动横截面，该计量单元被通过在孔（31）连接，通过所述密封 一个可移动的补偿元件（33），以补偿腔室（32），所有这些都通过分支管线（34），以排出侧燃料输送线路连接，并且所述计量元件的运动和补偿元件被间耦合在 求的方式并计量元件的运动的放大燃料流动横截面的方向导致补偿元件减少补偿室和计量元件在减小的燃料流动横截面导线的方向上的移动的移动 到运动 补偿元件的放大补偿室。 ... ...

公开(公告)号：EP0208802A1

公开(公告)日：1987-01-21

申请号：EP85108945.8

申请日：1985-07-17

Applicant: Kwik Europe London Limited

Inventor： Diener, Rudolf

IPC: F02M17/16 ,  F02D41/00 ,  F02M7/08 ,  F02M69/06 ,  F02M71/00

CPC classification number: F02M1/16 ,  F02B1/04 ,  F02D35/0053 ,  F02D35/0069 ,  F02M7/08 ,  F02M7/133 ,  F02M17/16 ,  F02M69/06

Abstract: Die Kraftstoff-Austrittsbohrung (9) des Rotors (7) ist so dimensioniert, dass der Rotorvergaser (2) ein Magergemisch mit einem in allen Betriebspunkten der Brennkraftmaschine kon­stanten Lambda-Wert von ca. 1,25 erzeugt.
Mit der Lambda-Korrekturvorrichtung werden zusätzliche Mengen Kraftstoff in den Zerstäubungsring (11) des Rotors (7) einge­bracht, mit denen das Kraftstoff-Luftverhältnis des Magerge­misches verändert und in den Betriebspunkten der Brennkraft­maschine auf die hinsichtlich Kraftstoffverbrauch, Leistung und schadstoffreie Abgase günstigsten Lambda-Werte eingestellt wird.
Die Lambda-Korrekturvorrichtung umfasst eine geregelte Kraft­stoff-Einspritzpumpe (20) mit einer auf die Innenwand (13) des Zerstäubungsringes (11) gerichteten Einspritzdüse (39a), aus der bei jedem Pumpenhub ca. 50 mm³ Kraftstoff ausgestos­sen werden, und eine Regeleinrichtung (50) mit einem Impuls­geber (40) zum Antreiben der Kraftstoff-Einspritzpumpe (20) mit Stromimpulsen geregelter Impulsfolgefrequenz. Die Regelung der Impulsfolgefrequenz erfolgt mit Steuersignalgebern (51, 52, 53, 54, 55) in Abhängigkeit von Betriebsparametern der Brennkraftmaschine, wie insbesondere dem Oeffnen der Drossel­klappe (18) für die Lambda-Korrektur beim Beschleunigen, der Kühlmitteltemperatur für die Kaltstart-Lambda-Korrektur usw.

Abstract translation: 转子（7）的燃料出口孔（9）的尺寸使得转子渗碳器（2）在内燃机的所有工作点产生具有约1.25的常数λ值的贫混合物。 使用λ校正装置，将额外量的燃料引入转子（7）的雾化环（11）中，改变贫混合物的燃料/空气比并在内燃机的工作点 到燃料消耗，功率和无污染废气的最有利的λ值。 λ校正装置包括受控燃料喷射泵（20），其具有指向雾化环（11）的内壁（13）的喷射喷嘴（39a），并且其中约50mm 3的燃料 在每个泵行程上被排出;以及控制装置（50），其具有用于以受控脉冲重复频率的电流脉冲驱动燃料喷射泵（20）的脉冲发射器（40）。 脉冲重复频率的控制是利用内燃机的操作参数的函数（51,52,53,54,55）来实现的，例如特别是节流阀的打开（ 18）用于加速时的λ校正，冷启动λ校正的冷却剂温度等