发明授权
US5029564A Fuel-air mixture-forming device for internal combustion engines 失效
用于内燃机的燃料 - 空气混合物形成装置

  • 专利标题: Fuel-air mixture-forming device for internal combustion engines
  • 专利标题(中): 用于内燃机的燃料 - 空气混合物形成装置
  • 申请号: US580937
    申请日: 1990-09-10
  • 公开(公告)号: US5029564A
    公开(公告)日: 1991-07-09
  • 发明人: Uwe Neutzer
  • 申请人: Uwe Neutzer
  • 申请人地址: DEX Frankfurt am Main
  • 专利权人: VDO Adolf Schindling AG
  • 当前专利权人: VDO Adolf Schindling AG
  • 当前专利权人地址: DEX Frankfurt am Main
  • 优先权: DEX3929838 19890908
  • 主分类号: F02M9/14
  • IPC分类号: F02M9/14 F02B1/04 F02M9/127 F02M19/02
Fuel-air mixture-forming device for internal combustion engines
摘要:
A fuel-air-mixture-forming device for an internal combustion engine, has a nozzle body (2) of rotational symmetry which, together with a throttle body (7) of rotational symmetry which is displaceable in the nozzle body, forms a convergent-divergent nozzle (10) which debouches into an intake pipe of the internal combustion engine. A fuel air slot (11) surrounds the convergent-divergent nozzle and debouches via a circumferential slot opening (12) into the nozzle. Fuel mixed with air is injected from the slot opening into the nozzle via a direction approximately transverse to the direction of the main air mass flow (L). In order to obtain an equalization of the closing forces caused by the vacuum on the throttle body, in accordance with the invention, the throttle body has an inner space (27) which is closed off from the nozzle and is provided with at least one pressure equalization cutout (28) which connects the nozzle with the inner space.
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