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1. 发明申请

US20130234345A1 FUEL METERING DIAPHRAGM WITH BACKING PLATE 有权
标题翻译：带背板的燃油计量膜
公开(公告)号：US20130234345A1
公开(公告)日：2013-09-12
申请号：US13771451
申请日：2013-02-20
申请人： WALBRO ENGINE MANAGEMENT, L.L.C.
发明人： Matthew A. Braun , Gary J. Burns
IPC分类号： F02M7/20
CPC分类号： F02M7/20 , F02M17/04 , F02M37/00 , F02M37/02
摘要： In at least some implementations, a carburetor having a fuel metering system including a diaphragm assembly that moves in response to pressure changes in a metering chamber to actuate a metering valve may include a flexible diaphragm adapted to carried by a body of the carburetor at a periphery to define part of the metering chamber. The portion of the diaphragm that defines part of the metering chamber defines a chamber projected area of the diaphragm. A backing plate is attached to the flexible diaphragm and arranged to be located outside the metering chamber. The backing plate having an outer perimeter defining a plate projected area, wherein an area ratio of the plate projected area to the chamber projected area is greater than about 0.1.
摘要翻译：在至少一些实施方式中，具有燃料计量系统的化油器包括响应于计量室中的压力变化而移动以致动计量阀的隔膜组件，其可以包括柔性隔膜，所述柔性隔膜适于在周边的一部分由化油器的主体承载以限定计量室的一部分。隔膜的限定计量室的一部分的部分限定了膜片的腔室投影面积。背板连接到柔性隔膜上并且布置成位于计量室外部。背板具有限定板投影面积的外周边，其中板投射面积与室投影面积的面积比大于约0.1。

2. 发明授权

US09677506B2 Carburetor supplemental fuel supply 有权
公开(公告)号：US09677506B2
公开(公告)日：2017-06-13
申请号：US14423611
申请日：2013-09-25
申请人： WALBRO ENGINE MANAGEMENT, L.L.C.
发明人： Scott D. Bostian , Matthew A. Braun , Gary J. Burns
IPC分类号： F02M7/00 , F02M17/04 , F02M7/08 , F02M1/16 , B01F3/04 , B01F15/04
CPC分类号： F02M17/04 , B01F3/04985 , B01F15/0479 , B01F2215/0086 , F02M1/16 , F02M7/00 , F02M7/08
摘要： A carburetor provides a supplemental fuel supply to an engine and includes a body, a fuel metering diaphragm and a fluid pump. The fuel metering diaphragm defines part of a fuel metering chamber and a reference chamber and has at least a portion that is movable relative to the body to increase and decrease the volume of the fuel metering chamber to control fuel flow in the fuel metering chamber. The fluid pump is carried by the carburetor or another component upstream of the carburetor and has an outlet in fluid communication with the metering reference chamber and an actuator arranged to discharge fluid through the outlet to increase the pressure within the metering reference chamber and thereby increase the fuel flow rate from the fuel metering chamber to the air-fuel passage to provide a supplemental fuel supply to the engine.

3. 发明授权

US09027910B2 Fuel metering diaphragm with backing plate 有权
标题翻译：带背板的燃油计量隔膜
公开(公告)号：US09027910B2
公开(公告)日：2015-05-12
申请号：US13771451
申请日：2013-02-20
申请人： Walbro Engine Management, L.L.C.
发明人： Matthew A. Braun , Gary J. Burns
IPC分类号： F02M37/00 , F02M7/20 , F02M37/02 , F02M17/04
CPC分类号： F02M7/20 , F02M17/04 , F02M37/00 , F02M37/02
摘要： In at least some implementations, a carburetor having a fuel metering system including a diaphragm assembly that moves in response to pressure changes in a metering chamber to actuate a metering valve may include a flexible diaphragm adapted to carried by a body of the carburetor at a periphery to define part of the metering chamber. The portion of the diaphragm that defines part of the metering chamber defines a chamber projected area of the diaphragm. A backing plate is attached to the flexible diaphragm and arranged to be located outside the metering chamber. The backing plate having an outer perimeter defining a plate projected area, wherein an area ratio of the plate projected area to the chamber projected area is greater than about 0.1.
摘要翻译：在至少一些实施方式中，具有燃料计量系统的化油器包括响应于计量室中的压力变化而移动以致动计量阀的隔膜组件，其可以包括柔性隔膜，所述柔性隔膜适于在周边的一部分由化油器的主体承载以限定计量室的一部分。隔膜的限定计量室的一部分的部分限定了膜片的腔室投影面积。背板连接到柔性隔膜上并且布置成位于计量室外部。背板具有限定板投影面积的外周边，其中板投射面积与室投影面积的面积比大于约0.1。

4. 发明申请

US20150184616A1 CARBURETOR SUPPLEMENTAL FUEL SUPPLY 有权
标题翻译：燃料补充燃料供应
公开(公告)号：US20150184616A1
公开(公告)日：2015-07-02
申请号：US14423611
申请日：2013-09-25
申请人： WALBRO ENGINE MANAGEMENT, L.L.C.
发明人： Scott D. Bostian , Matthew A. Braun , Gary J. Burns
IPC分类号： F02M17/04 , B01F3/04 , B01F15/04
CPC分类号： F02M17/04 , B01F3/04985 , B01F15/0479 , B01F2215/0086 , F02M1/16 , F02M7/00 , F02M7/08
摘要： A carburetor provides a supplemental fuel supply to an engine and includes a body, a fuel metering diaphragm and a fluid pump. The fuel metering diaphragm defines part of a fuel metering chamber and a reference chamber and has at least a portion that is movable relative to the body to increase and decrease the volume of the fuel metering chamber to control fuel flow in the fuel metering chamber. The fluid pump is carried by the carburetor or another component upstream of the carburetor and has an outlet in fluid communication with the metering reference chamber and an actuator arranged to discharge fluid through the outlet to increase the pressure within the metering reference chamber and thereby increase the fuel flow rate from the fuel metering chamber to the air-fuel passage to provide a supplemental fuel supply to the engine.
摘要翻译：化油器为发动机提供补充燃料，并且包括主体，燃料计量隔膜和流体泵。燃料计量隔膜限定燃料计量室和参考室的一部分，并且具有至少一部分可相对于主体移动的部分，以增加和减小燃料计量室的容积，以控制燃料计量室中的燃料流量。流体泵由化油器或化油器上游的另一部件承载，并且具有与计量参考室流体连通的出口和布置成通过出口排出流体的致动器，以增加计量参考室内的压力，从而增加从燃料计量室到空燃料通道的燃料流量，以向发动机提供补充燃料。

5. 发明申请

US20140261329A1 DIAPHRAGM CARBURETOR WITH FUEL METERING COMPENSATION 审中-公开
标题翻译：具有燃油计量补偿功能的印刷机
公开(公告)号：US20140261329A1
公开(公告)日：2014-09-18
申请号：US14196543
申请日：2014-03-04
申请人： WALBRO ENGINE MANAGEMENT, L.L.C.
发明人： Matthew A. Braun , Gary J. Burns
IPC分类号： F02M17/10
CPC分类号： F02M17/04
摘要： A fuel and air supply device for an engine includes a carburetor having a fuel metering assembly with a fuel metering diaphragm defining at least part of a reference chamber, a scavenging air assembly including an air passage and an air valve moveable within the passage to alter air flow through the air passage, and a reference passage. The reference passage communicates at one end with the air passage upstream of the air valve and at its other end with the reference chamber to provide a reference air signal through the reference passage to the reference chamber. The reference air signal, in at least some implementations, is taken from a location downstream of an air filter and any other components so it is representative of the air flow at the air valve and accounts for restrictions to air flow caused upstream of the air valve.
摘要翻译：用于发动机的燃料和空气供应装置包括具有燃料计量组件的化油器，所述燃料计量组件具有限定参考室的至少一部分的燃料计量隔膜，包括空气通道的清扫空气组件和可在通道内移动以改变空气的空气阀流过空气通道和参考通道。参考通道的一端与空气阀上游的空气通道连通，另一端与参考室连通，以通过参考通道提供参考空气信号到参考室。在至少一些实施方式中，参考空气信号从空气过滤器和任何其它部件的下游位置获取，因此它代表空气阀处的空气流，并且考虑到空气阀上游引起的空气流的限制。

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