IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0742200
(2000-12-20)
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발명자
/ 주소 |
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출원인 / 주소 |
- Visteon Global Technologies, Inc.
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대리인 / 주소 |
Brinks Hofer Gilson & Lione
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인용정보 |
피인용 횟수 :
15 인용 특허 :
12 |
초록
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A discrete lift, variable timing (DLVT) engine valve control system for an internal combustion engine includes a plurality of electrohydraulic valves. The plurality of electrohydraulic valves are operable between at least an open and closed position. Each of the plurality of electrohydraulic valves
A discrete lift, variable timing (DLVT) engine valve control system for an internal combustion engine includes a plurality of electrohydraulic valves. The plurality of electrohydraulic valves are operable between at least an open and closed position. Each of the plurality of electrohydraulic valves is operable independently of the other of the plurality of electrohydraulic valves. In one preferred embodiment, a selected combination of the plurality of electrohydraulic valves are selectively operated between at least the open and closed positions to move a selected combination of a plurality of pistons disposed in a selected combination of a plurality of axially spaced cylinders positioned serially one on top of the other. In an alternative preferred embodiment, a selected combination of the plurality of electrohydraulic valves are selectively operated between at least the open and closed positions to open a selected combination of longitudinally spaced exhaust ports communicating with a cylinder. Methods for controlling an engine valve in an internal combustion engine also are provided.
대표청구항
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A discrete lift, variable timing (DLVT) engine valve control system for an internal combustion engine includes a plurality of electrohydraulic valves. The plurality of electrohydraulic valves are operable between at least an open and closed position. Each of the plurality of electrohydraulic valves
A discrete lift, variable timing (DLVT) engine valve control system for an internal combustion engine includes a plurality of electrohydraulic valves. The plurality of electrohydraulic valves are operable between at least an open and closed position. Each of the plurality of electrohydraulic valves is operable independently of the other of the plurality of electrohydraulic valves. In one preferred embodiment, a selected combination of the plurality of electrohydraulic valves are selectively operated between at least the open and closed positions to move a selected combination of a plurality of pistons disposed in a selected combination of a plurality of axially spaced cylinders positioned serially one on top of the other. In an alternative preferred embodiment, a selected combination of the plurality of electrohydraulic valves are selectively operated between at least the open and closed positions to open a selected combination of longitudinally spaced exhaust ports communicating with a cylinder. Methods for controlling an engine valve in an internal combustion engine also are provided. extensions are maintained in abutting contact with each other to enhance said interconnection of the hull sections. 9. The hybrid hull as defined in claim 1, wherein the structure of the midship section is metallic and is reinforced by cross-sectionally T-shaped ribs. 10. The hybrid hull as defined in claim 9, wherein the structure of the bow and stem hull sections is non-metallic and is reinforced by cross-sectionally hat-shaped ribs. 11. The hybrid hulls defined in claim 9, wherein the structure of the bow and stern hull sections is non-metallic and of sandwich construction. 12. The hybrid hull as defined in claim 1, wherein the structure of the midship section is of metallic double hull sandwich construction. 13. The hybrid hull as defined in claim 12, wherein the structure of the bow and stern sections are non-metallic and reinforced by cross-sectionally hat-shaped ribs. 14. The hybrid hull as defined in claim 12, wherein the structure of the bow and stern hull sections are non-metallic and of sandwich construction. 15. A hybrid hull of a marine vessel having a midship section from which bow and stern sections extend in opposite directions, wherein each of said hull sections has a reinforced structure with the structure of the midship section being made of a different material from that of the bow and stem sections, including: transition extensions between the hull sections establishing geometric compatibility therebetween and an arrangement for interconnection of the hull sections, comprising: plate means extending from the transition extensions; and holding means carried by said plate means for attaching the hulls sections to each other; said transition extensions establishing a flush cross-sectional relation between the structures of adjacent hull sections; said midship section being made of reinforced metal and the bow and stern sections being made of reinforced non-metallic material; said plate means including: inserts interfitted between the transition extensions and secured thereto by the holding means, said holding means carried by the plate means, including: a plurality of threadedly inserted bolts extending through the transition extensions, and collars in overlapping contact with the transition extensions through which the bolts extend. 16. The hybrid hull as defined in claim 15, wherein said plate means extends laterally from the collars in contact with the transition extensions of the bow and stern sections. 17. The hybrid hull as defined in claim 16, wherein said transition extensions of the midship section include hat-shaped portions abutting rib portions of the transition extensions of the bow and stem sections. 18. A hybrid hull of a marine vessel having a midship section from which bow and stern sections extend in opposite directions, wherein each of said hull sections has a reinforced structure with the structure of the midship section being made of a different material from that of the bow and stern sections, including: transition extensions between the hull sections establishing geometric compatibility therebetween and an arrangement for interconnection of the hull sections, comprising: plate means extending from the transition extensions; and holding means carried by said plate means for attaching the hulls sections to each other; said transition extensions establishing a flush cross-sectional relation between the structures of adjacent hull sections; said midship section being made of reinforced metal and the bow and stern sections being made of reinforced non-metallic material; said plate means including: inserts interfitted between the transition extensions and secured thereto by the holding means, said holding means carried by the plate means, including: a plurality of threadedly inserted bolts extending through the transition extensions, and collars in overlapping contact with the transition extensions through which the bolts extend. 19. The hybrid hull as defined in claim 18, wherein said plate means extends laterally from the collars in contact with the transition extensions of the bow and stern sections through which the bolts extend. 20. The hybrid hull as defined in claim 19, wherein the transition extensions of the midship hull section has hat-shaped portions which abut rib portions of the transition extensions of the bow and stem hull sections. 21. A hybrid hull of a marine vessel having a midship section from which bow and stem sections extend in opposite directions, wherein each of said hull sections has a reinforced structure with the structure of the midship section being made of a different material from that of the bow and stern sections, including: transition extensions between the hull sections establishing geometric compatibility therebetween and an arrangement for interconnection of the hull sections, comprising: plate means extending from the transition extensions; and holding means carried by said plate means for attaching the hulls sections to each other, the structure of the midship section being metallic and reinforced by cross-sectionally T-shaped ribs, the structure of the bow and stem hull sections being non-metallic and reinforced by cross-sectionally hat-shaped ribs, and the transition extensions of the midship section being the T-shaped ribs transitioned into hat-stiffened ribs to establish the geometric compatibility. 22. A hybrid hull of a marine vessel having a midship section from which bow and stem sections extend in opposite directions, wherein each of said hull sections has a reinforced structure with the structure of the midship section being made of a different material from that of the bow and stem sections, including: transition extensions between the hull sections establishing geometric compatibility therebetween and an arrangement for interconnection of the hull sections, comprising: plate means extending from the transition extensions; and holding means carried by said plate means for attaching the hull sections to each other, the structure of the midship section being metallic and reinforced by cross-sectionally the T-shaped ribs transitioned into hat-stiffened rib construction to form the transition extensions, while the bow and stem sections are of non-metallic sandwich construction transitioned by said hat-stiffened construction of the transition extensions to establish geometric compatibility. 23. A hybrid hull of a marine vessel having a midship section from which bow and stem sections extend in opposite directions, wherein each of said hull sections has a reinforced structure with the structure of the midship section being made of a different material from that of the bow and stem sections, including: transition extensions between the hull sections establishing geometric compatibility therebetween and an arrangement for interconnection of the hull sections, comprising: plate means extending from the transition extensions; and holding means carried by said plate means for attaching the hull sections to each other, the structure of the midship section being of metallic double hull sandwich construction, and the structure of the bow and stern sections is transitioned by hat-stiffened construction of the transition extensions to establish the geometric compatibility, while the structure of the bow and stern sections are non-metallic and reinforced by cross-sectionally hat-shaped ribs. 24. A hybrid hull of a marine vessel having a midship section from which bow and stern sections extend in opposite directions, wherein each of said hull sections has a reinforced structure with the structure of the midship section being made of a different material from that of the bow and stern sections, including: transition extensions between the hull sections establishing geometric compatibility therebetween and an arrangement for interconnection of the hull sections, comprising: plate means extending from the transition extensions; and holding means carried by said plate means for attachi ng the hull sections to each other, the structure of the midship section being of metallic double hull sandwich construction transitioned by hat-stiffened construction of the transition extensions, while the bow and stern sections are of non-metallic sandwich construction transitioned by hat-stiffened construction of the transition extensions to establish the geometric compatibility.
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