IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0073571
(2005-03-08)
|
등록번호 |
US-7547000
(2009-07-01)
|
발명자
/ 주소 |
- Lewis, Stephen Robert
- Johanson, Amy Shalaine
- Streicher, James Joseph
|
출원인 / 주소 |
|
대리인 / 주소 |
Finnegan, Henderson, Farabow, Garrett & Dunner
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
11 |
초록
▼
A method for coupling a valve member to an armature member includes coupling the valve member to a surface of a bore of the armature member. The valve member contacts the armature member over less than an entire axial thickness of the surface of the bore of the armature member. The method further i
A method for coupling a valve member to an armature member includes coupling the valve member to a surface of a bore of the armature member. The valve member contacts the armature member over less than an entire axial thickness of the surface of the bore of the armature member. The method further includes aligning the armature member to a desired alignment and securing the valve member to the armature member at the desired alignment.
대표청구항
▼
What is claimed is: 1. A method for coupling a valve member to an armature member, comprising: coupling the valve member to a surface of a cylindrical bore of the armature member such that the valve member contacts the armature member over less than an entire axial length of the surface of the cyli
What is claimed is: 1. A method for coupling a valve member to an armature member, comprising: coupling the valve member to a surface of a cylindrical bore of the armature member such that the valve member contacts the armature member over less than an entire axial length of the surface of the cylindrical bore of the armature member aligning the armature member such that the axial length extends substantially parallel to the valve member; and welding the valve member to the armature member. 2. The method of claim 1, wherein the valve member includes at least one reduced diameter portion assisting in establishing the contact between the valve member and the armature member. 3. The method of claim 2, wherein the at least one reduced diameter portion includes two reduced diameter portions located on opposite sides of an intermediate portion, and the intermediate portion includes a portion that provides the contact with the armature member. 4. The method of claim 3, wherein the intermediate portion is generally spherical in shape. 5. The method of claim 3, wherein the intermediate portion is generally barrel shaped. 6. The method of claim 3, wherein the intermediate portion is shaped to taper substantially to form a point. 7. The method of claim 3, wherein the intermediate portion is shaped to include a generally flat portion. 8. The method of claim 3, wherein the intermediate portion includes a diameter greater than the diameter of the remaining portions of the valve member. 9. The method of claim 1, wherein the method further includes pre-hardening the valve member. 10. A method for coupling a valve member to an armature member, comprising: coupling the valve member to the armature member such that a substantial line contact is established between the valve member and a surface of a cylindrical bore of the armature member, the valve member including at least one reduced diameter portion disposed within the cylindrical bore and spaced apart from the surface of the bore; aligning the armature member at a desired alignment to the valve member; and fixing the valve member to the armature member at the desired alignment to prohibit relative movement between the valve member and armature member. 11. The method of claim 10, wherein the at least one reduced diameter portion assists in establishing the substantial line contact between the valve member and the surface of the bore of the armature member. 12. The method of claim 11, wherein the at least one reduced diameter portion includes two reduced diameter portions located on opposite sides of an intermediate portion, and the intermediate portion includes a portion providing the substantial line contact between the valve member and the surface of the bore of the armature member. 13. The method of claim 12, wherein the fixing of the valve member to the armature member includes welding. 14. The method of claim 12, wherein the intermediate portion is generally spherical in shape. 15. The method of claim 14, wherein the method further includes pre-hardening the valve member. 16. The method of claim 12, wherein the surface of the bore is generally curved in shape. 17. A valve member movable within a fuel injector to permit and prohibit fuel flow within the fuel injector, the valve member comprising: two reduced diameter portions separated by an intermediate portion and disposed between two increased diameter portions, the intermediate portion having a maximum diameter greater than a minimum diameter of either of the two reduced diameter portions, and the increased diameter portions each having a maximum diameter greater than the minimum diameter of each of the reduced diameter portions, wherein the maximum diameter of the intermediate portion includes an armature receiving portion configured to be disposed in a cylindrical bore in an armature and to contact a side of the cylindrical bore, and at least one of the two reduced diameter portions is configured to be disposed in the bore and to be out of contact with the side of the bore. 18. The valve member of claim 17, wherein valve member further includes a valve seat portion including varying diameter portions. 19. The valve member of claim 18, wherein the valve member further includes a center portion generally cylindrical in shape, the center portion being located between one of the reduced diameter portions and the valve seat portion. 20. The valve member of claim 19, wherein the intermediate portion is generally spherical in shape. 21. The valve member of claim 20, wherein the two reduced diameter portions are generally curved in shape. 22. The valve member of claim 21, wherein the intermediate portion is generally barrel shaped. 23. The valve member of claim 19, wherein the intermediate portion is shaped to taper substantially to form a point. 24. The valve member of claim 19, wherein the intermediate portion is shaped to include a generally flat portion. 25. The valve member of claim 17, where the armature receiving portion is configured to allow for tilting of an armature received thereon. 26. A valve assembly, comprising: a fuel injector housing; and a valve unit disposed within the fuel injector housing and configured to permit and prohibit fuel flow between passages in the fuel injector housing, the valve unit comprising: a valve member having an intermediate portion positioned adjacent at least one reduced diameter portion; and an armature member including a cylindrical bore sized to receive and contact the valve member intermediate portion while being sized to receive the reduced diameter portion and be spaced apart from a surface of the reduced diameter portion, the intermediate portion and armature bore being configured to allow substantial angular tilting movement of the armature member relative to the valve member before the valve member and armature member are fixed to one another to form the valve unit. 27. The valve assembly of claim 26, wherein the at least one reduced diameter portion includes two reduced diameter portions located on opposite sides of the intermediate portion. 28. The valve assembly of claim 27, wherein the two reduced diameter portions are generally curved in shape. 29. The valve assembly of claim 27, wherein the intermediate portion is generally barrel shaped. 30. The valve assembly of claim 27, wherein the intermediate portion is generally spherical in shape. 31. The valve assembly of claim 27, wherein the intermediate portion is shaped to taper substantially to form a point. 32. The valve assembly of claim 27, wherein the intermediate portion is shaped to include a generally flat portion.
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