1-10. (canceled)
11. A fuel filter of an internal combustion engine, with a filter housing having an operationally lower housing base and an operationally upper, removable housing cover, with a raw fuel inlet and a pure fuel outlet each being provided in the filter housing, with a replaceable ring filter insert being arranged in the filter housing through which the fuel can flow radially from the outside to the inside, said ring filter insert subdividing an interior of the filter housing into a raw area and a pure area, with a vent pipe being arranged in the interior of the ring filter insert through which extends a second flow channel as a vent channel being connected, at one end, with the raw area via one of a vent throttle and a vent valve and, at an opposite end, with a tank return in the filter housing, with the raw fuel inlet being arranged in the housing base of the filter housing and, one of in and on the fuel filter, a third flow channel being provided leading from the raw fuel inlet to an operationally upper part of the raw area of the interior of the filter housing,
the fuel filter comprising:
the vent pipe being arranged as a support body for the ring filter insert;
a first flow channel extending through the support body and being connected with the pure area at one end and with the pure fuel outlet at an opposite end; and
the third flow channel leading from the raw fuel inlet to the operationally upper part of the raw area extending as a flow channel through the support body.
12. The fuel filter according to claim 11, wherein one of the three flow channels extends concentrically in the support body and the two other flow channels extend within the support body eccentrically and spaced apart from each other in circumferential direction of the support body.
13. A fuel filter according to claim 12, wherein the flow channel concentrically extending in the support body is the second flow channel connected with the tank return and used for venting, and the one of the vent throttle and the vent valve is arranged at an upper end of the support body in a wall of the support body separating the raw area from the second flow channel.
14. A fuel filter according to claim 11, wherein in addition to the raw fuel inlet, the pure fuel outlet and the tank return are arranged in the housing base of the filter housing, and at least one of the flange and the line connections are provided on the housing base for the raw fuel inlet, the pure fuel outlet and the tank return.
15. A fuel filter according to claim 14, wherein the support body is connected mechanically on its lower end with the housing base and in terms of flow with the raw fuel inlet, the pure fuel outlet and the tank return.
16. A fuel filter according to claim 15, wherein the housing base and the support body are provided with interacting threads for their connection with each other and that the threads are arranged such that, in screwed together condition, the support body assumes relative to the housing base in circumferential direction a defined position angularly aligned for the flow-specific connection with the raw fuel inlet, the pure fuel outlet and the tank return.
17. A fuel filter according to claim 11, wherein the support body with the three flow channels extending therein is one of a one-piece plastic injection molding and a one-piece light metal casting.
18. A fuel filter according to claim 11, wherein the housing base is connected with a water collection chamber forming, during operation, a lowest part of the fuel filter.
19. A fuel filter according to claim 11, wherein the housing cover and the ring filter insert are connected with each other via a detachable latching connection transmitting axial tensile forces and, by a movement of the housing cover together with the ring filter insert relative to the filter housing and the support body upwardly, a direct flow connection is releasable from the raw area to the tank return.
20. A fuel filter of an internal combustion engine, comprising:
a filter housing having an operationally lower housing base and an operationally upper, removable housing cover, with a raw fuel inlet and a pure fuel outlet each being provided in the filter housing,
a replaceable ring filter insert arranged in the filter housing through which the fuel can flow radially from the outside to the inside, said ring filter insert subdividing an interior of the filter housing into a raw area and a pure area,
a first flow channel extending through the support body and connected with the pure area at one end and with the pure fuel outlet at an opposite end;
a vent pipe being arranged in the interior of the ring filter insert through which extends a second flow channel as a vent channel being connected, at one end, with the raw area via one of a vent throttle and a vent valve and, at an opposite end, with a tank return in the filter housing,
the raw fuel inlet arranged in the housing base of the filter housing, and one of in and on the fuel filter,
a third flow channel leading from the raw fuel inlet to an operationally upper part of the raw area of the interior of the filter housing,
the vent pipe arranged as a support body for the ring filter insert; and
the third flow channel extending as a flow channel through the support body.
21. The fuel filter according to claim 20, wherein one of the three flow channels extends concentrically in the support body and the two other flow channels extend within the support body eccentrically and spaced apart from each other in circumferential direction of the support body.
22. A fuel filter according to claim 21, wherein the flow channel concentrically extending in the support body is the second flow channel connected with the tank return and used for venting, and the one of the vent throttle and the vent valve is arranged at an upper end of the support body in a wall of the support body separating the raw area from the second flow channel.
23. A fuel filter according to claim 20, wherein in addition to the raw fuel inlet, the pure fuel outlet and the tank return are arranged in the housing base of the filter housing, and at least one of the flange and the line connections are provided on the housing base for the raw fuel inlet, the pure fuel outlet and the tank return.
24. A fuel filter according to claim 23, wherein the support body is connected mechanically on its lower end with the housing base and in terms of flow with the raw fuel inlet, the pure fuel outlet and the tank return.
25. A fuel filter according to claim 24, wherein the housing base and the support body are provided with interacting threads for their connection with each other and that the threads are arranged such that, in screwed together condition, the support body assumes relative to the housing base in circumferential direction a defined position angularly aligned for the flow-specific connection with the raw fuel inlet, the pure fuel outlet and the tank return.
26. A fuel filter according to claim 20, wherein the support body with the three flow channels extending therein is one of a one-piece plastic injection molding and a one-piece light metal casting.
27. A fuel filter according to claim 20, wherein the housing base is connected with a water collection chamber forming, during operation, a lowest part of the fuel filter.
28. A fuel filter according to claim 20, wherein the housing cover and the ring filter insert are connected with each other via a detachable latching connection transmitting axial tensile forces and, by a movement of the housing cover together with the ring filter insert relative to the filter housing and the support body upwardly, a direct flow connection is releasable from the raw area to the tank return.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An aluminumceramic bonding substrate comprising:
a ceramic substrate; and
an aluminum alloy member of an aluminum-silicon alloy which is bonded directly to said ceramic substrate by cooling a molten aluminum-silicon alloy containing boron while said molten aluminum-silicon alloy contacts said ceramic substrate, said aluminum-silicon alloy containing 0.1 to 1.5 wt % of silicon, and 0.02 wt % or more of boron as a third element for decreasing the grain size of the aluminum-silicon alloy to increase the number of grain boundary portions thereof.
2. An aluminumceramic bonding substrate as set forth in claim 1, wherein said aluminum-silicon alloy contains 0.2 to 1.0 wt % of silicon.
3. An aluminumceramic bonding substrate as set forth in claim 1, wherein said aluminum-silicon alloy contains 0.03 to 0.10 wt % of boron.
4. An aluminumceramic bonding substrate as set forth in claim 1, wherein all or part of a surface of said aluminum alloy member is plated with nickel or a nickel alloy.
5. A power module comprising an aluminumceramic bonding substrate as set forth in claim 1.