公开(公告)号：EP3369920A1

公开(公告)日：2018-09-05

申请号：EP18158063.0

申请日：2018-02-22

申请人： Briggs & Stratton Corporation

发明人： ROTH, David

IPC分类号： F02M7/12 ,  F02D11/04 ,  F02D17/04 ,  F02B63/02

CPC分类号： F02M7/12 ,  F02B63/02 ,  F02D11/04 ,  F02D17/04 ,  F02P11/025

摘要： An engine (10) including a fuel tank (14), a carburettor (16), a speed control lever (17), and a transport valve (19). The carburetor includes a throttle valve (16a) movable between a first throttle position and a second throttle position. The speed control lever (17) is coupled to the throttle valve (16a) and is movable between a first position corresponding to the first throttle position and a second position corresponding to the second throttle position. The transport valve (19) is fluidly coupled between the fuel tank (14) and the carburettor (16), and includes a valve element moveable between an open valve position allowing fuel flow between the fuel tank (14) and the carburettor (16), and a closed valve position preventing fuel flow between the fuel tank (14) and the carburettor (16). Movement of the speed control lever (17) to the second position moves the valve element to the closed valve position to stop fluid flow between the fuel tank (14) and the carburettor (16).

公开(公告)号：EP2894325A1

公开(公告)日：2015-07-15

申请号：EP13834208.4

申请日：2013-08-12

申请人： Xu, Wenxin

发明人： Xu, Wenxin

IPC分类号： F02M29/08 ,  F02M29/06 ,  F02M29/02 ,  F02M7/12

CPC分类号： F02M29/08 ,  B01F3/04021 ,  B01F15/0254 ,  B01F2215/0086 ,  F02M7/245 ,  F02M9/00 ,  F02M29/02 ,  F02M29/06

摘要： The present invention discloses an improved device for reinforcing mixed gas turbulent flow, saving energy and reducing emission of fuel oil engines. A spring-type device (2) and a propeller-type device (3), both used for further enhancing the degree of mixed atomization of the mixed gas, are provided in a mixed gas channel of an engine carburetor (2) and a choke (7). The spring-type device and propeller-type device are used for enhancing the degree of mixed atomization of the mixed gas, so that fuel is combusted more timely and sufficiently, thereby achieving the purposes of reinforcement, energy saving and emission reduction.

摘要翻译： 本发明改进的光盘用于加强混合气体紊流，节约能源和减少燃料油发动机的发射装置上松动。 在发动机汽化器的混合气体通道设置的弹簧式装置（2）和螺旋桨式装置（3），两个用于进一步提高混合气体的混合雾化程度，（2）和阻 （7）。 弹簧式装置和螺旋桨型装置是用于增强的混合气体的混合雾化程度，象燃料燃烧更及时和更充分，从而实现增强，节能减排的目的。

公开(公告)号：EP2492485A1

公开(公告)日：2012-08-29

申请号：EP10824723.0

申请日：2010-08-25

申请人： Mitsubishi Heavy Industries, Ltd.

发明人： MAKI, Kazuhiro

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

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

摘要： 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.

摘要翻译： 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来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实现成本，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的进气路径中的节流阀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。

公开(公告)号：EP0259866A3

公开(公告)日：1989-06-14

申请号：EP87113212.2

申请日：1987-09-09

申请人： MIKUNI KOGYO KABUSHIKI KAISHA

发明人： Muraji, Tetsuo

IPC分类号： F02M7/12 ,  F02M17/02

CPC分类号： F02M7/12 ,  F02M17/02

摘要： A carburetor provided with a fuel flow rate control device (11) disposed midway in a fuel passageway between a fuel pump (8) and a metering jet (4); a level sensor (13) arranged in a passageway (12) for detection connected upright to a portion between the fuel flow rate control device and the metering jet provided in the fuel passageway; an electrical control circuit operating the fuel flow rate control device in accordance with the output delivered from the level sensor so that the level of a fuel column to be formed in the passageway for detection is maintained at a predetermined positon, in order to enable fuel supply with permanent stability to be performed without using a float chamber or without being affected by the vibration of the engine and the turn of a car body.

公开(公告)号：EP0263455A2

公开(公告)日：1988-04-13

申请号：EP87114470.5

申请日：1987-10-03

申请人： MIKUNI KOGYO KABUSHIKI KAISHA

发明人： Sekiya, Mitsuru ,  Muraji, Tetsuo

IPC分类号： F02M7/12 ,  F02M17/02 ,  F02M3/08

CPC分类号： F02M7/12 ,  F02M3/08 ,  F02M17/02

摘要： A fuel supply device for carburetors in which a first level sensor (10) for maintaining a reference fuel liquid level in a fuel chamber (7) is provided separate from the fuel chamber; a second level sensor (20) used to maintain properly a fuel flow rate in a slow operation zone (6) and a third level sensor (16) used to maintain properly a fuel flow rate in a main operation zone (1) are arranged close by the first level sensor; and a mixture with a proper air-fuel ratio can always be supplied to an engine even if the fuel liquid level in the fuel chamber fluctuates and the entire carburetor inclines, without being affected thereby.

摘要翻译： 一种用于化油器的燃料供给装置，其中用于保持燃料室（7）中的参考燃料液位的第一高度传感器（10）与燃料室分开设置; 用于适当地保持慢操作区域（6）中的燃料流量的第二水平传感器（20）和用于适当地维持主操作区域（1）中的燃料流量的第三水平传感器（16） 由第一级传感器; 即使在燃料室内的燃料液面发生变动而化油器整体倾斜的情况下，也能始终向发动机供给适当的空燃比的混合气体而不受影响。

公开(公告)号：EP0145676A2

公开(公告)日：1985-06-19

申请号：EP84830301.2

申请日：1984-11-05

申请人： WEBER S.p.A.

发明人： Vitto, Renato

IPC分类号： F02M7/12

CPC分类号： F02M7/133

摘要： A device suitable to transitorially enrich the mixture delivered by a carburetor includes a housing (1), enclosing two chambers (5) and (6), which are separated by a diaphragm (3); chamber (5) communicates with the manifold through a channel (7); chamber (6) communicates with chamber (5) through a metering hole (8), which crosses the plates (4a and 4b); a spring (9) and the forces due to pressures acting on the 2 diaphragm sides (3) act on the diaphragm (3); a chamber (13) separated from the chamber (6) by a diaphragm (11), communicates with the float, chamber (2) through an inlet and with the main circuit (15) through an outlet (16), closed by a valve formed by a spring (18), suitable for pushing a sphere (19) on a seat (17). A bar (20) integral to the diaphragms (3, 11) supports a pushing rod (24), which under the action of pressure forces acting on the diaphragm (3) removes the sphere (19) from the seat (17), opening the outlet passage. The fuel is metered out by a bush (25).

摘要翻译： 适合于transitorially丰富由化油器输送的混合物的装置，包括壳体（1），包围两个腔室（5）和（6），其是由隔膜（3）分离; 室（5）通过信道与所述歧管进行通信（7）; 室（6）通过计量孔（8），它穿过板（4a和4b）与腔室（5）进行通信; 弹簧（9）和由于作用于双方隔膜（3）作用在隔膜（3）的压力的力; 由隔膜（11）（6）从所述腔室分开的腔室（13）（2）通过在入口和与所述主回路（15）通过向出口（16）与浮子，室连通，由阀门关闭 通过弹簧（18）适于在座椅（17）推压的球体（19）形成。 线条（20）集成到隔膜（3，11）支撑一个推杆（24），其中作用于膜片的压力的力的作用下（3）从所述座（17），开口移除球体（19） 所述出口通道。 燃料通过一个衬套（25）计量出。

公开(公告)号：EP0023632B1

公开(公告)日：1984-11-07

申请号：EP80104154.2

申请日：1980-07-16

申请人： Hitachi, Ltd.

发明人： Ishii, Toshio ,  Mouri, Yasunori ,  Abe, Osamu ,  Hasegawa, Taiji

IPC分类号： F02M7/12 ,  F02D35/02

CPC分类号： F02M7/24 ,  F02D41/1483 ,  F02D41/26 ,  F02M7/20

公开(公告)号：EP0034936A1

公开(公告)日：1981-09-02

申请号：EP81300737.4

申请日：1981-02-23

申请人： CTS Corporation

发明人： Lloyd, Charles F. ,  Zalewski, Z. Leo ,  Brendle, Paul C.

IPC分类号： F02M17/38 ,  F02M7/12 ,  F02M7/24 ,  F02M23/04

CPC分类号： F02D41/26 ,  F02D41/1484 ,  F02M3/09 ,  F02M7/20

摘要： Control apparatus, typically for carburettors, which comprises an actuator device (20) having a permanent magnet armature and a pair of coils surrounding the permanent magnet, and a microprocessor (18) responsive to certain parameter-sensed variables including pressure (12), temperature (14), throttle conditions (16) and oxygen content (10) in order that these variously sensed parameters can be com- municatedtothe microprocessor wherein there is transduced by algorithm either a digital signal or an analog signal. The digital or analog signal is then fed to the actuator device in the form of a demand signal for currentflowto the armature coils. The coils upon energisation mechanically displace the arma- tureto effect mechanical transducing ofthe electrical signal to control an actuator rod effecting orifice control. The armature thus effectively controls the orifice size, which in turn determines fuel/air ratio for an internal combustion engine, in conjunction with a carburettor function. Fuel-air control creates operating conditions which in turn are re-sensed by the sensors, the sensors in turn repeating their operation so that there is provided a closed loop servo system either by digital oranalog signals.

摘要翻译： 控制装置，通常用于化油器，其包括具有永磁体电枢的致动器装置（20）和围绕永磁体的一对线圈;以及响应于某些参数检测变量的微处理器（18），包括压力（12），温度 （14），节气门条件（16）和氧气含量（10），以便将这些各种感测的参数传送到微处理器，其中由数字信号或模拟信号的算法转换。 数字或模拟信号然后以需求信号的形式被馈送到致动器装置，用于流向电枢线圈的电流。 通电时的线圈将电枢机械地移位以实现电信号的机械传感，以控制致动器杆实现孔口控制。 因此，@电枢@因此有效地控制孔口尺寸，这进而决定了内燃机的燃料/空气比与化油器功能的关系。 燃料空气控制产生操作条件，这些操作条件又由传感器重新感测，传感器又重复其操作，从而通过数字或模拟信号提供闭环伺服系统。

公开(公告)号：EP3660284A1

公开(公告)日：2020-06-03

申请号：EP18209488.8

申请日：2018-11-30

申请人： Andreas Stihl AG & Co. KG

发明人： SCHUMANN, Florian ,  RYSSEL, Max

IPC分类号： F01M1/04 ,  F02B33/04 ,  F02B33/26 ,  F02M3/045 ,  F02M7/12 ,  F02M17/38 ,  F01M3/00 ,  F02D41/00

摘要： Ein gemischgeschmierter Viertaktmotor (1) besitzt einen Zylinder (2), in dem ein Brennraum (3) ausgebildet ist. Der Brennraum (3) ist von einem im Zylinder (2) beweglich gelagerten Kolben (4) begrenzt. Der Viertaktmotor (1) weist einen Ansaugkanal (21) auf, der über eine von einem Einlassventil (24) gesteuerte Einlassöffnung (22) in den Brennraum (3) mündet. Der Viertaktmotor (1) weist eine Gemischbildungseinrichtung (17) auf, die mindestens eine Kraftstofföffnung (18) umfasst, die in den Ansaugkanal (21) mündet. Zur Schmierung des Kurbelgehäuseinnenraums (6) weist der Viertaktmotor (1) eine Strömungsverbindung auf, die den Ansaugkanal (21) mit einer stromab der Gemischbildungseinrichtung (17) in den Ansaugkanal (21) mündenden Verbindungsöffnung (11) mit dem Kurbelgehäuseinnenraum (6) verbindet. Die der Kraftstofföffnung (18) zugeführte Kraftstoffmenge ist von einem Kraftstoffventil (19) gesteuert. Der Viertaktmotor (1) weist eine Steuerung (20) auf, die dazu ausgebildet ist, das Kraftstoffventil (19) in Abhängigkeit der Stellung der Kurbelwelle (7) derart anzusteuern, dass das Kraftstoffventil (19) zumindest auch während eines Teils des Kompressionstakts (13) des Viertaktmotors (1) geöffnet ist. Ein Verfahren zum Betrieb des Viertaktmotors (1) sieht vor, dass das Kraftstoffventil (19) in Abhängigkeit der Stellung der Kurbelwelle (7) derart angesteuert wird, dass das Kraftstoffventil (19) zumindest auch während eines Teils eines Kompressionstakts (13) des Viertaktmotors (1) geöffnet ist.

公开(公告)号：EP2492485B1

公开(公告)日：2014-11-19

申请号：EP10824723.0

申请日：2010-08-25

申请人： Mitsubishi Heavy Industries, Ltd.

发明人： MAKI, Kazuhiro

IPC分类号： F02M7/00 ,  F02D9/02 ,  F02D11/10 ,  F02M7/12 ,  F02M1/08

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