Claims
- 1. A retaining assembly to maintain yieldingly the rotational settings of a low and a high speed needle valve of a carburetor comprising:a low speed needle valve having a rotatable elongated shank, a spring, and a head, the elongated shank engaged threadably to and projecting outward from the carburetor body, the spring disposed about the shank and axially compressibly between the carburetor body and the head, the head engaged with the shank, the head having an annular surface facing the carburetor body, the shank defined radially by a longitudinal outward surface and a longitudinal inward surface, the annular surface disposed radially outward from and perpendicular to the outward and inward surfaces; a high speed needle valve having a rotatable elongated shank, a spring, and a head, the elongated shank engaged threadably to and projecting outward from the carburetor body, the spring disposed about the shank and axially compressibly between the carburetor body and the head, the head engaged with the shank, the head having an annular surface facing the carburetor body, the shank defined radially by a longitudinal outward surface and a longitudinal inward surface, the annular surface disposed radially outward from and perpendicular to the outward and inward surfaces, the shank of the low speed needle valve being parallel to the shank of the high-speed needle valve, the inward surface of the low-speed needle valve shank facing the inward surface of the high-speed needle valve shank; a retainer engaged resiliently to the springs of the low and high-speed needle valves and thereby biasing laterally the low-speed needle valve shank and the high-speed needle valve shank; and two limiter caps engaged to the respective heads of the low and high-speed needle valves, wherein the limiter caps are engaged to the heads after the retainer is engaged to the springs of the low and high-speed needle valves.
- 2. The retaining device according to claim 1 wherein the retainer is a clip retainer having a first leg engaged laterally to the spring engaged laterally to the adjacent outward surface of the low-speed needle valve shank, a second leg engaged laterally to the spring engaged laterally to the outward surface of the high-speed needle valve shank, the first leg engaged unitarily to the second leg, the clip retainer interference fitted laterally about the respective springs of the low and high-speed needle valve shanks, wherein the low-speed needle valve projecting shank is biased laterally toward the high-speed needle valve projecting shank by the retainer.
- 3. The rotational retaining device according to claim 2 wherein the first and second legs of the clip retainer each have a distal end curving radially outward from the respective low and high-speed needle valve shanks.
- 4. The retaining device according to claim 1 wherein the retainer is a band retainer encircling both the springs of the low and high-speed needle valve shanks, the band retainer resiliently laterally engaging the springs which laterally engage the outward surfaces of the low and high-speed needle valve shanks, wherein the low-speed needle valve projecting shank is biased laterally toward the high-speed needle valve projecting shank by the band retainer.
- 5. The retaining device according to claim 4 wherein the band retainer is stretched prior to installing axially about the springs of the low and high-speed needle valve shanks.
- 6. The retaining device according to claim 4 wherein the band retainer is made of a polymeric material and shrunk by the application of heat after the band retainer is placed about the springs of the low and high-speed needle valve shanks.
- 7. The retaining device according to claim 1 wherein the retainer is a wedge retainer having a primary member having an enlarged distal end and an enlarged base end, the primary member extended between the distal and base ends, the primary member engaged laterally to the springs engaged laterally to the inward surfaces of the low and high-speed needle valve shanks between the distal and base ends, wherein the expanded distal end is snap fitted laterally past the inward surfaces of the low and high-speed needle valve shanks, and the low-speed needle valve projecting shank is biased laterally away from the high speed needle valve projecting shank by the wedge retainer.
- 8. The retaining device according to claim 7 wherein the wedge retainer has a first member engaged to the base end and extended perpendicularly from the primary member, the first member disposed tangentially to the spring of the low-speed needle valve.
- 9. The retaining device according to claim 8 wherein the wedge retainer has a second member engaged to the base end and extended perpendicularly from the primary member, the first member disposed tangentially to the spring of the high-speed needle valve.
- 10. The retaining device according to claim 1 wherein the retainer is a ring retainer having a circumferential inward surface engaged to and encircling the spring of the low-speed needle valve and a circumferential outward surface engaged to the spring of the high-speed needle valve, wherein the low speed needle valve projecting shank is biased laterally away from the high-speed needle valve projecting shank by the ring retainer.
- 11. The retaining device according to claim 1 wherein the retainer is a ring retainer having a circumferential inward surface engaged to and encircling the spring of the high-speed needle valve and a circumferential outward surface engaged to the spring of the low-speed needle valve, wherein the high-speed needle valve projecting shank is biased laterally away from the low-speed needle valve projecting shank by the ring retainer.
- 12. A retaining assembly to maintain yieldingly the rotational settings of a low and a high speed needle valve of a carburetor comprising:a low speed needle valve having a rotatable elongate shank and a head, the elongate shank engaged threadably to and projecting outward from a carburetor body, and the shank defined radially by a longitudinal outward surface and a longitudinal inward surface; a high speed needle valve having a rotatable elongate shank and a head, the elongate shank engaged threadably to and projecting outward from the carburetor body, and the shank defined radially by a longitudinal outward surface and a longitudinal inward surface; the shank of the low-speed needle valve being parallel to the shank of the high-speed needle valve, the inward surface of the low-speed needle valve shank facing the inward surface of the high-speed needle valve shank; and a retainer engaged resiliently with the low speed and high-speed needle valves outward of the carburetor body to bias laterally and skew both the low-speed needle valve shank against the carburetor body and the high-speed needle valve shank against the carburetor body.
- 13. The retainer assembly according to claim 12 which also comprises two limiter caps engaged to the respective heads of the low and high-speed needle valves, wherein the limiter caps are engaged to the heads after the retainer is engaged with the low and high-speed needle valves.
- 14. The retaining assembly according to claim 12 which also comprises a first spring received over the shank of the low-speed needle valve between its head and the carburetor, a second spring received over the shank of the high-speed needle valve between its head and the carburetor, and the retainer is engaged resiliently to the springs for biasing laterally the shanks of the needle valves.
- 15. The retaining assembly according to claim 12 wherein the retainer is a band retainer encircling both the low and high-speed needle valve shanks, the band retainer resiliently laterally biasing the outward surfaces of the low and high-speed needle valve shanks, wherein the low-speed needle valve projecting shank is biased laterally toward the high-speed needle valve projecting shank by the band retainer.
- 16. The retaining assembly according to claim 15 wherein the band retainer is stretched prior to installing it axially about the low and high-speed needle valve shanks.
- 17. The retaining assembly according to claim 12 wherein the retainer is a ring retainer having a circumferential inward surface encircling one of the needle valves and a portion of a circumferential outward surface engaged to the spring adjacent the other valve, wherein the projecting shanks of the needle valves are biased laterally away from each other by the ring retainer.
- 18. A retaining assembly to maintain yieldingly the rotational settings of a low and a high speed needle valve of a carburetor comprising:a low speed needle valve having a rotatable elongate shank and a head, the elongate shank engaged threadably to and projecting outward from a carburetor body, and the shank defined radially by a longitudinal outward surface and a longitudinal inward surface; a high speed needle valve having a rotatable elongate shank and a head, the elongate shank engaged threadably to and projecting outward from the carburetor body, and the shank defined radially by a longitudinal outward surface and a longitudinal inward surface; the shank of the low-speed needle valve being parallel to the shank of the high-speed needle valve, the inward surface of the low-speed needle valve shank facing the inward surface of the high-speed needle valve shank; a retainer engaged resiliently with the low speed and high-speed needle valves to bias laterally the low-speed needle valve shank and the high-speed needle valve shank; and the retainer is a clip having a first leg engaged laterally with the adjacent outward surface of the low-speed needle valve shank, a second leg engaged laterally with the outward surface of the high-speed needle valve shank, the first leg engaged unitarily to the second leg, the clip retainer being interference fitted laterally about the low and high-speed needle valve shanks, wherein the low-speed needle valve projecting shank is biased laterally toward the high-speed needle valve projecting shank by the retainer.
- 19. A retaining assembly to maintain yieldingly the rotational settings of a low and a high speed needle valve of a carburetor comprising:a low speed needle valve having a rotatable elongate shank and a head, the elongate shank engaged threadably to and projecting outward from a carburetor body, and the shank defined radially by a longitudinal outward surface and a longitudinal inward surface; a high speed needle valve having a rotatable elongate shank and a head, the elongate shank engaged threadably to and projecting outward from the carburetor body, and the shank defined radially by a longitudinal outward surface and a longitudinal inward surface; the shank of the low-speed needle valve being parallel to the shank of the high-speed needle valve, the inward surface of the low-speed needle valve shank facing the inward surface of the high-speed needle valve shank; a retainer engaged resiliently with the low speed and high-speed needle valves to bias laterally the low-speed needle valve shank and the high-speed needle valve shank; and the retainer is a wedge retainer having a primary member having an enlarged distal end and an enlarged base end, the primary member extending between the distal and base ends, the primary member laterally biasing the inward surfaces of the low and high-speed needle valve shanks between the distal and base ends, wherein the expanded distal end is snap fitted laterally past the inward surfaces of the low and high-speed needle valve shanks, and the low-speed needle valve projecting shank is biased laterally away from the high-speed needle valve projecting shank by the wedge retainer.
REFERENCE TO COPENDING APPLICATION
This application is a division of application Ser. No. 09/798,602, filed Mar. 2, 2001, now U.S. Pat. No. 6,402,125, which in turn is a continuation-in-part of application Ser. No. 09/538,123, filed Mar. 29, 2000, now U.S. Pat. No. 6,402,124.
US Referenced Citations (24)
Foreign Referenced Citations (1)
Number |
Date |
Country |
9-158783 |
Jun 1997 |
JP |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09/538123 |
Mar 2000 |
US |
Child |
09/798602 |
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US |