发明名称 |
Cooling-air blower having a combustion-air channel which taps a component air flow from a cooling-air channel |
摘要 |
The invention is directed to a cooling-air blower for an internal combustion engine including a two-stroke engine of a portable handheld work apparatus. Cooling air is guided by a cooling-air channel to an internal combustion engine and a combustion-air channel conducts air to the intake pipe of the engine. A portion of the cooling-air flow is tapped at the pressure end of the blower. A segment of the combustion-air channel is disposed next to the cooling-air channel. A profile hollow body having a streamlined configuration extends from this segment of the combustion-air channel into the cooling-air channel. The profile hollow body is aligned at its location in the cooling-air channel with the flow direction of the cooling-air flow and has a rear end facing away from this flow. An inlet opening is provided in this rear end of the hollow body for receiving a portion of the cooling-air flow which is then passed to the combustion-air channel through the hollow body. The streamline configuration and location of the inlet opening permit a large quantity of air to be tapped without disturbing the cooling-air flow and without taking along dirt particles entrained in the cooling-air flow.
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申请公布号 |
US5269265(A) |
申请公布日期 |
1993.12.14 |
申请号 |
US19930014815 |
申请日期 |
1993.02.08 |
申请人 |
STIHL, ANDREAS |
发明人 |
PRETZSCH, PETER;KEIN, MICHAEL;LINSBAUER, PETER |
分类号 |
F01P1/02;F01P5/06;F02B63/00;F02B63/02;F02B75/02;F02M35/06;F02M35/10;(IPC1-7):F01P1/00 |
主分类号 |
F01P1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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