Particular embodiments of the present invention provide novel fluid-cooled cylinder liners. Preferred liners are annular cylinders containing a plurality of passages, arranged generally parallel to the axis of the cylinders, and integrated between the inner and outer surfaces of the cylinders. Prefe
Particular embodiments of the present invention provide novel fluid-cooled cylinder liners. Preferred liners are annular cylinders containing a plurality of passages, arranged generally parallel to the axis of the cylinders, and integrated between the inner and outer surfaces of the cylinders. Preferably, the integral passages are arranged so that they are typically closer to the outer surface of the liner than the inner surface. Each passage has at least two openings. A passage with two openings on opposite end of the cylinder runs the entire length of the liner, while a passage with a opening at one end of the liner and a second opening along a surface of the liner runs only for a fraction of the liner length. In preferred embodiments, openings on the outer surface of the liner will be arranged in a circle lying on a plane perpendicular to the axis of the cylinder, and near either end of the cylinder; ensuring that each passage traverses the majority of the length of the liner. Preferably, the cylinder liners comprise at least one material selected from the group consisting of aluminum, a aluminum-based metal matrix composite (MMC) with a particulate reinforcement, superalloys, ceramic matrix composite (CMC), and carbon graphite foam. Preferably, the liners comprise a heating element.
대표청구항▼
The invention claimed is: 1. A cylinder liner for a cylinder bore, comprising: a generally annular cylindrical member having top and bottom cylinder ends, and having parallel or generally parallel inner and outer surfaces; at least one fluid channel integrated within and between the surfaces of the
The invention claimed is: 1. A cylinder liner for a cylinder bore, comprising: a generally annular cylindrical member having top and bottom cylinder ends, and having parallel or generally parallel inner and outer surfaces; at least one fluid channel integrated within and between the surfaces of the member, the channel having first and second channel ends, the channel traversing at least a majority of the cylinder length; and first and second channel openings at or near the first and second channel ends, respectively, wherein one channel opening opens to at least one of a cylinder end and the outer cylinder surface, wherein the other channel opening opens to at least one of a cylinder end, the other cylinder end, the outer cylinder surface, and the inner cylinder surface, and wherein the channel and channel openings defining a fluid passageway. 2. The cylinder liner of claim 1, comprising a plurality of separate fluid channels. 3. The cylinder liner of claim 1, wherein the liner comprises at least one material selected from the group consisting of consisting of a aluminum-based metal matrix composite (MMC) with a particulate reinforcement, superalloys, ceramic matrix composite (CMC), and carbon graphite foam. 4. The cylinder liner of claim 1, wherein the channel openings are at the channel ends. 5. The cylinder liner of claim 1, wherein the channel ends and channel openings are at the cylinder ends. 6. The cylinder liner of claim 5, further comprising a third opening positioned along the channel somewhere between the first and second openings, wherein the third opening opens to the outer cylinder surface. 7. The cylinder liner of claim 6, further comprising a fluid-directing tube connected to a channel opening at the bottom cylinder end. 8. The cylinder liner of claim 1, wherein the first channel opening is at a cylinder end, and the second channel opening is at, at least one of, the outer cylinder surface and the inner cylinder surface. 9. The cylinder liner of claim 8, comprising a plurality of such channels all having one channel opening at the same cylinder end, and all having one channel opening at the outer cylinder surface near the other cylinder end. 10. The cylinder liner of claim 9, wherein the outer surface channel openings are positioned in a circular arrangement running parallel to the cylinder ends. 11. The cylinder liner of claim 10, further comprising two grooves on the outer cylinder surface suitable to accommodate sealing means, the groves parallel or nearly parallel to the cylinder ends and situated so that the channel openings arrangement is positioned therebetween. 12. The cylinder liner of claim 11, wherein sealing is by use of two O-rings within the grooves. 13. The cylinder liner of claim 1, further comprising flange at the top cylinder end, the flange suitable to be received into a counterbore in a cylinder bore. 14. The cylinder liner of claim 1, further comprising a circular trough perpendicular to the cylinder axis and recessed into the outer cylinder surface, wherein a channel opening opens into the trough. 15. The cylinder liner of claim 14, comprising a plurality of channels, each channel having a channel opening that opens into the trough to form a circular arrangement of channel openings within the trough. 16. The cylinder liner of claim 1, wherein the liner comprises carbon graphite foam. 17. The cylinder liner of claim 1, comprising or in communication with a heating element suitable to increase the temperature of the liner. 18. A cylinder liner, comprising carbon graphite foam. 19. The cylinder liner of claim 18, further comprising or in communication with a heating element suitable to increase the temperature of the liner. 20. The cylinder liner of claim 18, further comprising a integrated fluid channel defining a fluid passageway through the liner. 21. The cylinder liner of claim 1, wherein the at least one channel traverses the majority of, or substantially throughout, the interior of the cylinder liner.
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이 특허에 인용된 특허 (12)
Ott, Ronald D.; McMillan, April D.; Choudhury, Ashok, Carbon or graphite foam as a heating element and system thereof.
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