초록

A combination fitting for flow control devices in an automotive power steering system having channels disposed in the fluid receiving in of the fitting.

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1. A combination fitting for regulating fluid flow within generally cylindrical chamber defined in a fluid control apparatus, said fitting comprising:a generally cylindrical member defining a bore therethrough;a first end of the bore in fluid communication with a pump outlet;a second end of the bore

1. A combination fitting for regulating fluid flow within generally cylindrical chamber defined in a fluid control apparatus, said fitting comprising:a generally cylindrical member defining a bore therethrough;a first end of the bore in fluid communication with a pump outlet;a second end of the bore in fluid communication with a discharge port;the member mounted within the chamber and having a first end and a second end, the first end having an outer peripheral surface and an end surface; anda channel defined in a portion of the first end the members, the channel in fluid communication with the bore, the channel opening axially to the end surface and also opening radially to the outer peripheral surface. 2. The combination fitting of claim 1 further comprising a pair of radially extending channels defined on said first end of the member, the pair of channels forming a cross-shape on the end surface. 3. The combination fitting of claim 2 wherein said channels have a rectangular cross-section. 4. The combination fitting of claim 1 having two or more channels. 5. The combination fitting of claim 4 wherein the channels are regularly spaced about the bore. 6. The combination fitting of claim 5 having four channels regularly spaced at about 90° about the bore. 7. The combination fitting of claim 4 wherein the channels are irregularly spaced about the bore. 8. The combination fitting of claim 1 wherein the at least one channel has a length and a width, wherein the length and the width of the at least one channel define an area of from about 14 mm 2 to about 18 mm 2 . 9. The combination fitting of claim 1 wherein the at least one channel has a length and a width, wherein the length and the width of the at least one channel define an area of from about 15 mm 2 to about 17 mm 2 . 10. The combination fitting of claim 1 wherein the at least one channel has a length and a width, wherein the length and the width of the at least one channel define an area of from about 16 mm 2 to about 16.5 mm 2 . 11. The combination fitting of claim 1 wherein the at least one channel has a length and a width, wherein the length and the width of the at least one channel define an area of about 16.3 mm 2 . 12. The combination fitting of claim 1 wherein the at least one channel has a width and a length, and the ratio of the length of the at least one channel to the width of the at least one channel is from about 14:1 to about to 5:3. 13. The combination fitting of claim 1 wherein the ratio of the length of the at least one channel to the width of the at least one channel is from about 10:1.5 to about 6:2.5. 14. The combination fitting of claim 1 wherein the ratio of the length of the at least one channel to the width of the at least one channel is about 7:2.33. 15. The combination fitting of claim 1 having two or more channels. 16. The combination fitting of claim 15 wherein the channels are regularly spaced about the bore. 17. The combination fitting of claim 16 having four channels regularly spaced at about 90° about the bore. 18. The combination fitting of claim 15 wherein the channels are irregularly spaced about the bore. 19. A combination fitting for regulating the flow of fluid comprising:a cylindrical member defining a bore therethrough;a first end having a fluid port in fluid communication with the bore and with an outlet port of a pump;a second end having a fluid port in fluid communication with the bore and with an automotive power steering mechanism; anda plurality of posts extending axially at the first end of the cylindrical member, the plurality of posts being circumferentially spaced to define a plurality of channels therebetween forming the fluid port of the first end of the cylindrical member. 20. The combination fitting of claim 19 wherein the plurality of channels comprises a pair of radially extending channels defined on said first end of the member, and forming a cross-shape in the axial end surface of the first end. 21. The combination fitting of claim 20 wherein channels have a rectangular cross-section. 22. The combination fitting of claim 19 wherein the at least one channel has a length and a width, wherein the length and the width of the at least one channel define an area of from about 14 mm 2 to about 18 mm 2 . 23. The combination fitting of claim 19 wherein the at least one channel has a length and a width, wherein the length and the width of the at least one channel define an area of from about 15 mm 2 to about 17 mm 2 . 24. The combination fitting of claim 19 wherein the at least one channel has a length and a width, wherein the length and the width of the at least one channel define an area of from about 16 mm 2 to about 16.5 mm 2 . 25. The combination fitting of claim 19 wherein the at least one channel has a length and a width, wherein the length and the width of the at least one channel define an area of about 16.3 mm 2 . 26. The combination fitting of claim 19 wherein the at least one channel has a width and a length, and the ratio of the length of the at least one channel to the width of the at least one channel is from about 14:1 to about to 5:3. 27. The combination fitting of claim 19 wherein the ratio of the length of the at least one channel to the width of the at least one channel is from about 10:1.5 to about 6:2.5. 28. The combination fitting of claim 19 wherein the ratio of the length of the at least one channel to the width of the at least one channel is about 7:2.33. 29. A combination fitting for regulating fluid flow within generally cylindrical chamber defined in a fluid control apparatus, fitting comprising:a generally cylindrical member defining a bore therethrough, the bore defining a bore axis;a first end of the bore in fluid communication with a pump outlet;a second end of the bore in fluid communication with a discharge port;said member mounted within said chamber and having a first end and a second end, the first end defining an axial end surface; anda pair of channels extending radially from the bore and defined on the first end of the member, the pair of channels crossing each other at a point on the bore axis. 30. The combination fitting of claim 29, wherein the pair of channels form a cross-shape on the axial end surface.