发明名称 |
Aggregate for feeding fuel from a supply tank to internal combustion engine of motor vehicle |
摘要 |
An aggregate for feeding fuel from a supply tank to an internal combustion engine of a motor vehicle has a fluid pump having an impeller with a plurality of vanes distributed over its periphery on its both end surfaces, elements forming a pump chamber in which the impeller is rotated and including two wall parts limiting the pump chamber in direction of a rotary axis of the impeller at both sides and a housing part limiting the pump chamber in a radial direction, each of the wall parts having an end surface facing the impeller and being provided with a substantially ring-shaped feeding passage, at least one of the feeding passages having a connection with a suction side of the flow pump and at least the other of the feeding passages has a connection with a pressure side of the flow pump. The impeller and the housing part are arranged so that a radial gap between an outer surface of the impeller and an inner surface of the housing part at least in a peripheral region of the housing part in which the connection of the one feeding passage with the suction side is provided has such a size that a suction passage is formed through which the other feeding passage is also connected with the suction side of the flow pump. For limiting the suction passage in a peripheral direction near the suction passage, peripheral regions are arranged in which the radial gap is smaller.
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申请公布号 |
US5449269(A) |
申请公布日期 |
1995.09.12 |
申请号 |
US19940222471 |
申请日期 |
1994.04.01 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
FRANK, KURT;TREIBER, JUERGEN |
分类号 |
F02M37/10;F02M37/06;F04D5/00;F04D7/02;(IPC1-7):F04D5/00 |
主分类号 |
F02M37/10 |
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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