公开(公告)号：US20050166897A1

公开(公告)日：2005-08-04

申请号：US10664155

申请日：2003-09-17

申请人： Gerhard Osburg ,  Wolfgang Luithardt

发明人： Gerhard Osburg ,  Wolfgang Luithardt

IPC分类号： F01L13/08 ,  F02M1/08 ,  F02M1/14

CPC分类号： F02M1/08 ,  F01L13/08

摘要： A two-stroke engine has an intake channel via which the engine (1) is supplied with an air/fuel mixture prepared in a carburetor (12). The engine also has a starting device (19, 40) for enrichment of the air/fuel mixture during the start operation. The starting device (19, 40) is disposed in the region of the carburetor (12). To avoid an overenrichment of the mixture after start-up of the engine, a bypass channel (20) is provided which branches off upstream of the starting device (19, 40) viewed in the flow direction (30) of the air/fuel mixture and opens downstream of the starting device (19, 40). A switching valve (23) is mounted in the bypass channel (20) and is essentially closed when the engine (1) is started. When the engine (1) runs up, the switching valve (23) automatically switches into a position where less throttling occurs.

摘要翻译： 二冲程发动机具有进气通道，发动机（1）通过该进气通道供应在化油器（12）中制备的空气/燃料混合物。 发动机还具有用于在启动操作期间浓缩空气/燃料混合物的启动装置（19,40）。 起动装置（19,40）设置在化油器（12）的区域中。 为了避免在发动机起动之后混合物的过度富集，提供旁路通道（20），其沿着空气/燃料混合物的流动方向（30）观察到的起始装置（19,40）的上游分支 并且在起动装置（19,40）的下游开口。 开关阀（23）安装在旁通通道（20）中，并且当发动机（1）启动时基本上关闭。 当发动机（1）向上运动时，切换阀（23）自动切换到发生较少节流的位置。

公开(公告)号：US4482508A

公开(公告)日：1984-11-13

申请号：US451782

申请日：1982-12-21

申请人： Hidemi Onaka ,  Mamoru Yoshioka

发明人： Hidemi Onaka ,  Mamoru Yoshioka

IPC分类号： F02M1/14

CPC分类号： F02M1/14

摘要： An altitude compensation device for internal combustion engines such as automotive engines. The device has a first diaphragm device and a second diaphragm device which are provided with a first diaphragm chamber and a second diaphragm chamber defined by a first diaphragm and a second diaphragm, respectively. A choke lever connected to a choke valve is fixed to the first diaphragm while a stopper for limiting the opening of the choke valve is provided on the second diaphragm device. A first communication passage provides a communication between the first diaphragm chamber and the intake passage of the engine so as to transmit the intake vacuum to the first diaphragm chamber to drive the choke valve in such a direction as to open the choke valve. A second communication passage provides a communication between the intake passage and the second diaphragm chamber to transmit the intake vacuum thereby to move the stopper in such a direction as to afford a larger opening of the choke valve. An air bleed valve is disposed in the second communication passage to selectively bring the latter into communication with the atmosphere.

摘要翻译： 用于汽车发动机等内燃机的高度补偿装置。 该装置具有分别由第一隔膜和第二隔膜限定的第一隔膜室和第二隔膜室的第一隔膜装置和第二隔膜装置。 连接到阻风门的节流杆固定到第一隔膜，而在第二隔膜装置上设置用于限制阻塞阀的开度的止动件。 第一连通通道提供第一隔膜室和发动机的进气通道之间的连通，以将进气真空传递到第一隔膜室，以沿打开阻风门的方向驱动阻流阀。 第二连通通道提供进气通道和第二隔膜室之间的连通，以传递进气真空，从而使塞子沿使得阻塞阀的开口更大的方向移动。 排气阀设置在第二连通通道中，以选择性地使其与大气连通。

公开(公告)号：US4481914A

公开(公告)日：1984-11-13

申请号：US430065

申请日：1982-09-30

申请人： Tokuzi Ishida

发明人： Tokuzi Ishida

IPC分类号： F02M11/00 ,  F02M1/14 ,  F02M1/16 ,  F02M7/08 ,  F02M11/02

CPC分类号： F02M7/08 ,  F02M1/16 ,  F02M11/02

摘要： An accelerator pump supplies additional fuel into a primary intake passage when a primary throttle valve is opened. A vacuum-operated actuator is responsive to a vacuum developed in a manifold passage upon cranking for actuating an accelerator pump plunger to discharge extra fuel into the primary intake passage. When the engine which is cold is to be started, such an additional supply of fuel assists the engine in getting started quickly. When the engine which is hot is to be restarted, the actuation of the accelerator pump clears away fuel vapor from the accelerator pump and a fuel feed passage connected therewith, thus readying the accelerator pump for normal operation. The primary throttle valve is operatively connected to the accelerator pump through a plate cam having a cam edge which is profiled such that the amount of extra fuel as supplied by the accelerator pump is proportional to opening of the primary throttle valve.

摘要翻译： 当主节流阀打开时，加速器泵向主进气通道提供额外的燃料。 真空操作的致动器响应于在起动时在歧管通道中形成的真空，用于致动加速器泵柱塞以将额外的燃料排放到主进气通道中。 当要启动发动机时，这种额外的燃油可以帮助发动机快速起动。 当要重新启动热的发动机时，加速器泵的致动将加速器泵的燃料蒸气和与其连接的燃料供给通道清除，从而准备加速器泵以进行正常操作。 主节流阀通过具有凸轮边缘的板式凸轮可操作地连接到加速器泵，凸轮边缘被轮廓化，使得由加速器泵供应的额外燃料的量与主节流阀的打开成比例。

公开(公告)号：US4284589A

公开(公告)日：1981-08-18

申请号：US90733

申请日：1979-11-02

申请人： Jerry H. Winkley

发明人： Jerry H. Winkley

IPC分类号： F02M1/14 ,  F02M1/10

CPC分类号： F02M1/14 ,  Y10S261/84 ,  Y10T137/7062

摘要： The vacuum motor and link assembly used to pull-off a carburetor choke valve when an engine is started is made tamper resistant to prevent someone from changing the position at which the vacuum motor causes the choke valve to open. A cover is installed on the carburetor and shrouds the vacuum motor, link, and the portion of a choke shaft to which the link is connected thereby to prevent access to these parts.

摘要翻译： 用于在发动机启动时拉断化油器阻流阀的真空马达和连杆组件被制成防篡改，以防止某人改变真空马达使阻塞阀打开的位置。 在化油器上安装了一个盖子，并且覆盖真空马达，连杆以及与其连接的阻塞轴的部分，以防止进入这些部件。

公开(公告)号：US4113808A

公开(公告)日：1978-09-12

申请号：US780590

申请日：1977-03-24

申请人： Eugene R. Hackbarth ,  Russell J. Van Rens

发明人： Eugene R. Hackbarth ,  Russell J. Van Rens

IPC分类号： F02M1/14

CPC分类号： F02M1/14

摘要： Disclosed herein is a carburetor for internal combustion engines having an automatic choke control mechanism including a vacuum diaphragm assembly operatively connected to a choke lever for opening a spring-biased closed choke valve and holding it open at idling and lower engine speeds and a linkage arrangement interconnecting a throttle valve lever and the choke lever for holding the choke valve open at higher engine speeds independently of the vacuum diaphragm assembly. The linkage arrangement includes a spring-biased choke pull-out lever which is held in a locked position during engine idling and lower engine speeds by a link having one end slidably received in a slot in the choke pull-out lever and the other end connected to the throttle lever. As the throttle lever is moved past a predetermined advance speed position, the link is moved to a released position in the choke pull-out lever slot wherein the choke pull-out lever is urged into abutting engagement with the choke lever to hold the choke valve open. As the throttle lever is returned toward the engine idling position past the predetermined advance speed setting, the link returns the choke pull-out lever to the locked position and the choke lever is again controlled by the vacuum diaphragm assembly.

摘要翻译： 本发明公开了一种用于内燃机的化油器，其具有自动扼流器控制机构，该自动扼流器控制机构包括可操作地连接到扼流杆的真空隔膜组件，用于打开弹簧偏置的闭合扼流阀并将​​其保持在怠速和较低的发动机速度下打开， 节气门杆和扼流杆，用于在独立于真空隔膜组件的较高发动机转速下保持阻塞阀打开。 联动装置包括弹簧偏置的扼流器拉出杆，其在发动机怠速期间保持在锁定位置，并且通过连杆具有较低的发动机速度，该连杆具有一端可滑动地容纳在扼流器拉出杆中的狭槽中，另一端连接 到油门杆。 当节气门杆移动超过预定的前进速度位置时，连杆被移动到扼流器拉出杆槽中的释放位置，其中扼流器拉出杆被推动成与阻风杆邻接接合以保持阻风门 打开。 当节气门杆朝向发动机怠速位置返回超过预定的前进速度设定时，连杆将扼流器拉出杆返回到锁定位置，并且扼流杆再次由真空隔膜组件控制。

公开(公告)号：US4098459A

公开(公告)日：1978-07-04

申请号：US709970

申请日：1976-07-30

申请人： Benjamin C. Benjamin

发明人： Benjamin C. Benjamin

IPC分类号： F02M1/14 ,  G05D23/01

CPC分类号： F02M1/14

摘要： A double diaphragm, two stage vacuum break device in which the vacuum break plunger operates in a first stage in response to movement of one diaphragm assembly and in a second stage in response to movement of a pair of diaphragm assemblies. Metering valves are employed to cause delay of movement of the vacuum break devices in each of its ranges and delay can be eliminated from a selected one or both of the stages of movement by omitting a valve member. The stages of movement are under the control of separate sources of vacuum, a selected one of which may be under control of a temperature responsive valve. The range of movement of the plunger in its two stages of operation may be adjusted by mechanical means or a member responsive to temperature.

摘要翻译： 双隔膜，两级真空断路装置，其中真空断裂柱塞响应于一个隔膜组件的运动而在第一阶段中运行，并且响应于一对隔膜组件的运动在第二阶段中运行。 使用计量阀来使真空断路装置在其每个范围内的移动延迟，并且可以通过省略阀构件从选定的一个或两个移动阶段中消除延迟。 运动阶段处于单独的真空源的控制之下，其中一个可以在温度响应阀的控制下。 柱塞在其两个操作阶段的运动范围可以通过机械装置或对温度有响应的构件来调节。

公开(公告)号：US3967600A

公开(公告)日：1976-07-06

申请号：US520006

申请日：1974-11-01

申请人： Masahiko Iiyama ,  Takashi Kamezaki

发明人： Masahiko Iiyama ,  Takashi Kamezaki

IPC分类号： F02M1/14 ,  F02D9/00 ,  F02M1/00 ,  F02M13/04 ,  F02M25/06

CPC分类号： F02M13/046 ,  Y10S123/04

摘要： A choke valve control device is provided for an internal combustion piston engine in which each cylinder is provided with a main combustion chamber and an auxiliary combustion chamber connected by a torch nozzle. A first carburetor supplies lean mixture to the main chamber and a second carburetor supplies rich mixture to the auxiliary chamber, and each carburetor is provided with a choke valve. The choke valve of the first carburetor may be automatically operated by means of a bimetal element or may be manually actuated. Both choke valves are provided with biasing means tending to move them toward closed position, respectively, and each is provided with valve opening means responsive to engine operation.

摘要翻译： 为内燃式活塞式发动机提供阻流阀控制装置，其中每个气缸设有主燃烧室和通过喷管连接的辅助燃烧室。 第一个化油器将稀混合物供应到主室，第二个化油器为辅助室提供丰富的混合物，每个化油器设有一个节流阀。 第一化油器的阻流阀可以通过双金属元件自动操作，或者可以手动致动。 两个阻塞阀均设有倾向于将它们分别移向关闭位置的偏置装置，并且每个阻尼器都设有响应于发动机操作的阀开启装置。

公开(公告)号：US3934565A

公开(公告)日：1976-01-27

申请号：US477979

申请日：1974-06-10

申请人： Hirohumi Matsumoto ,  Masahiko Nakada

发明人： Hirohumi Matsumoto ,  Masahiko Nakada

IPC分类号： F02M1/14 ,  F02M1/10

CPC分类号： F02M1/10

摘要： A mechanism is provided whereby the opening of an automatic choke valve is controlled by means of pressure in a diaphragm chamber with the chamber being selectively communicated with a vacuum pickup tube or an atmospheric pressure pickup tube through operation of a solenoid controlled valve. A switch actuatable in response to vehicle speed and another switch actuatable in response to engine temperature operate to selectively connect the solenoid controlled valve to a power source thereby to determine the operating mode of the valve.

摘要翻译： 提供了一种机构，由此通过隔膜室中的压力来控制自动阻风门的打开，其中室通过操作电磁阀来选择性地与真空拾取管或大气压力拾取管连通。 响应于车辆速度而可起动的开关和响应于发动机温度可操作的另一开关操作以选择性地将电磁控制阀连接到动力源，从而确定阀的操作模式。

公开(公告)号：US3886241A

公开(公告)日：1975-05-27

申请号：US44879574

申请日：1974-03-06

申请人： FORD MOTOR CO

发明人： SCHUBECK PHILLIP A

IPC分类号： F02M1/14 ,  F02M1/10 ,  F02M7/24

CPC分类号： F02M1/10

摘要： A carburetor has a conventional bimetallic coiled spring that for cold engine starts and running urges a fast idle cam to a cold position to increase the idle speed to sustain engine operation. A separate lever connected to the choke valve is pulled by engine vacuum to move the choke valve wide open, to lean the air/fuel mixture and reduce emissions. For starting purposes, the separate lever is returned to the cold start position dictated by the fast idle cam.

摘要翻译： 化油器具有传统的双金属螺旋弹簧，用于冷发动机起动和运行，促使快速空转凸轮到达冷位置以增加怠速以维持发动机运转。 通过发动机真空拉动连接到节流阀的单独的杆，以将阻塞阀广泛地打开，以使空气/燃料混合物变稀，并减少排放。 为了起始目的，单独的杠杆返回到由快速空转凸轮指定的冷启动位置。

公开(公告)号：US3361416A

公开(公告)日：1968-01-02

申请号：US56593066

申请日：1966-07-18

申请人： BENDIX CORP

发明人： MORGAN DONALD F ,  WINKLER ALBERT H

IPC分类号： F02M1/14

CPC分类号： F02M1/14