公开(公告)号：US20070257379A1

公开(公告)日：2007-11-08

申请号：US11800509

申请日：2007-05-04

Applicant: John Mason ,  Roger Bowles ,  Patrick O'Shea

Inventor： John Mason ,  Roger Bowles ,  Patrick O'Shea

IPC: F02M7/22 ,  F02M1/04

CPC classification number: F02M7/00 ,  F02B25/14 ,  F02B25/22 ,  F02B63/02 ,  F02B2075/025 ,  F02M17/04 ,  F02M35/1019 ,  F02M35/10196 ,  F02M35/10262 ,  F02M35/108 ,  Y02T10/146 ,  Y10S261/01

Abstract: A carburetor 9 for feeding separate lean and rich channels 12, 13 of an engine intake duct 14 comprises a body 20 having a mixing passage 22 with an air intake side 24 and an engine outlet side 26. A throttle shutter 16 is rotatable about an axis transverse the mixing passage, and a partition 10 is located within the mixing passage upstream of the throttle shutter. The downstream edge of the partition 10 is adjacent the throttle shutter axis 16A whereby in use of the carburetor the partition defines an extension of the lean and rich channels upstream of the throttle shutter, the partition thus providing substantial isolation between the lean and rich channels for all rotational positions of the throttle shutter. In a preferred embodiment a choke shutter 17 is located upstream of the throttle shutter and is rotatable about a further axis 17 A transverse the mixing passage, the upstream edge of the partition being adjacent to the axis of the choke shutter.

Abstract translation: 用于输送发动机进气管道14的分离的贫和富通道12,13的化油器9包括主体20，其具有带有进气侧24和发动机出口侧26的混合通道22。 节流阀16可以绕着混合通道横向的轴线旋转，并且隔板10位于在节流闸门上游的混合通道内。 分隔件10的下游边缘邻近节流阀16A，由此在使用化油器的情况下，隔板限定了节流闸门上游的稀薄和富裕通道的延伸部分，因此，隔板在精益和富有通道之间提供了实质的隔离 对于油门挡板的所有旋转位置。 在优选实施例中，扼流闸17位于节流闸门的上游，并且能够绕横向于混合通道的另一轴线17A旋转，隔板的上游边缘与阻风门的轴线相邻。

公开(公告)号：US5635113A

公开(公告)日：1997-06-03

申请号：US542774

申请日：1995-10-13

Applicant: Patrick Walsh ,  Roger Bowles

Inventor： Patrick Walsh ,  Roger Bowles

IPC: F02M3/10 ,  F02M19/04 ,  F02M3/08

CPC classification number: F02M19/04 ,  F02M3/10 ,  F02M2003/105 ,  Y10S261/38 ,  Y10S261/84 ,  Y10T137/7062

Abstract: A fuel adjustment screw apparatus for a diaphragm-type carburetor comprises a screw member (4) having a shaft (4a) and a head (12) by which the shaft may be rotated, with a generally tubular open-ended housing (9) surrounding the head of the screw member. A cap member (10) is mounted in the housing and is movable axially of the screw member between a first position (as seen in FIG. 1) and a second position (FIG. 2). The cap member is held clear of the head of the screw member in the first position so that the screw member can rotate freely, and engages over the head of the screw member in the second position for rotation with the head. The housing has stop means (20) which is engaged by the cap member in the second position for limiting the angle of rotation of the head.

公开(公告)号：US07694943B2

公开(公告)日：2010-04-13

申请号：US11800509

申请日：2007-05-04

Applicant: John Mason ,  Roger Bowles ,  Patrick O'Shea

Inventor： John Mason ,  Roger Bowles ,  Patrick O'Shea

IPC: F02M7/12

CPC classification number: F02M7/00 ,  F02B25/14 ,  F02B25/22 ,  F02B63/02 ,  F02B2075/025 ,  F02M17/04 ,  F02M35/1019 ,  F02M35/10196 ,  F02M35/10262 ,  F02M35/108 ,  Y02T10/146 ,  Y10S261/01

Abstract: A carburetor for feeding separate lean and rich channels of an engine intake duct includes a body having a mixing passage with an air intake side and an engine outlet side. A throttle shutter is rotatable about an axis transverse the mixing passage, and a partition is located within the mixing passage upstream of the throttle shutter. The downstream edge of the partition is adjacent the throttle shutter axis whereby in use of the carburetor the partition defines an extension of the lean and rich channels upstream of the throttle shutter, the partition thus providing substantial isolation between the lean and rich channels for all rotational positions of the throttle shutter. In a preferred embodiment a choke shutter is located upstream of the throttle shutter and is rotatable about a further axis transverse the mixing passage, the upstream edge of the partition being adjacent to the axis of the choke shutter.

Abstract translation: 一种用于输送发动机进气管的分离的贫气和富油通道的化油器，包括具有进气侧和发动机出口侧的混合通道的主体。 节流闸门可以围绕横向于混合通道的轴线旋转，并且分隔件位于混合通道的上游在节流闸门的上游。 隔板的下游边缘与节流阀轴线相邻，因此在使用化油器时，隔板限定了节流阀上游的稀薄和富有通道的延伸部分，因此隔板可以在贫气通道和富通道之间提供实质的隔离， 油门挡板的位置。 在优选实施例中，扼流闸被设置在节流闸板的上游，并且能够绕横向于混合通道的另一个轴线旋转，隔板的上游边缘与扼流闸的轴线相邻。

公开(公告)号：US5776379A

公开(公告)日：1998-07-07

申请号：US799503

申请日：1997-02-12

Applicant: Roger Bowles

Inventor： Roger Bowles

IPC: F02M3/10 ,  F02M3/08 ,  F16K35/10

CPC classification number: F02M3/10 ,  Y10S261/38 ,  Y10S261/84 ,  Y10T137/7062

Abstract: A carburetor adjustment screw apparatus includes an adjusting screw (2) having a shaft (7) in screw threaded engagement with a carburetor body (4) and a head (8) by which the shaft may be rotated. A generally tubular open-ended housing (10) surrounds the head of the screw and a ring (11) is rotatably mounted in the open end of the housing. Stop means (19/20) limit the angular range of rotation of the ring. A plug (12) is mounted in the ring and engages the screw such that rotation of the plug effects corresponding rotation of the screw. The plug is movable relative to the ring between a first axial position wherein the plug can rotate independently of the ring and a second axial position wherein the plug engages the ring for co-rotation therewith such that the angular range of rotation of the plug is limited to the angular range of rotation of the ring.

Abstract translation: 化油器调节螺旋装置包括具有与化油器主体（4）螺纹接合的轴（7）的调节螺钉（2）和轴可旋转的头部（8）。 围绕螺钉的头部的大致为管状的开口的壳体（10），并且环（11）可旋转地安装在壳体的开口端。 停止装置（19/20）限制了环的旋转角度范围。 插塞（12）安装在环中并接合螺钉，使得插头的旋转实现螺钉的相应旋转。 塞子可以在第一轴向位置和第二轴向位置之间相对于环移动，在第一轴向位置处，塞可以独立于环旋转，而第二轴向位置，其中插塞接合环以与其共旋转，使得插塞的角度范围受到限制 到环的旋转角度范围。

公开(公告)号：US5411680A

公开(公告)日：1995-05-02

申请号：US150973

申请日：1993-11-12

Applicant: Gerard McCarthy ,  Roger Bowles

Inventor： Gerard McCarthy ,  Roger Bowles

IPC: F02M17/04

CPC classification number: F02M17/04 ,  Y10S261/68

Abstract: A diaphragm-type carburetor has a high speed adjusting needle and a low speed/idle adjusting needle which are independently supplied with fuel from the metering chamber. The path for fuel to the low speed/idle needle has a valve which is controlled by the angular position of the throttle shaft such that when the throttle shutter is closed the valve is open whereas when the throttle shutter is open the valve is closed.

Abstract translation: 隔膜式化油器具有高速调节针和低速/空闲调节针，其独立地从计量室供应燃料。 燃料到低速/空闲针的路径具有由节流轴的角位置控制的阀，使得当节气门关闭时，阀打开，而当节气门打开时，阀关闭。