CA2327024A1 - Locomotive brake valve - Google Patents
Locomotive brake valve Download PDFInfo
- Publication number
- CA2327024A1 CA2327024A1 CA002327024A CA2327024A CA2327024A1 CA 2327024 A1 CA2327024 A1 CA 2327024A1 CA 002327024 A CA002327024 A CA 002327024A CA 2327024 A CA2327024 A CA 2327024A CA 2327024 A1 CA2327024 A1 CA 2327024A1
- Authority
- CA
- Canada
- Prior art keywords
- combination according
- spring
- elastomeric material
- brake valve
- predetermined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
- Springs (AREA)
Abstract
In combination with a railway locomotive brake valve, the improvement comprising a spring for providing enhanced damping capabilities, the spring comprising a compression member having a predetermined load rating and a predetermined length, and an elastomeric material encasing such member.
Description
LOCOMOTIVE BRAKE VALVE
CROSS-REFERENCE TO RELATED APPLICATION
The invention taught in the present application is closely related to the invention taught in co-pending patent application titled "Spring With Enhanced Damping Capabilities", filed concurrently herewith and having serial number This application is assigned to the assignee of the present application. The teachings of this co-pending patent application are incorporated herein by reference thereto.
FIELD OF INVENTION
The present invention relates, in general, to a locomotive brake valve and, more particularly, this invention relates to a spring having enhanced damping capabilities in combination with a locomotive brake valve.
BACKGROUND OF THE INVENTION
Prior to the present invention, a locomotive brake valve is equipped with at least one spring that provides a mechanical force against a diaphragm in order to generate air pressure in the valve. Spring vibration occurs as a result of either the spring operating at its natural frequency, or vibration that is introduced to_ the spring through its environment during normal operation of the brake valve. This vibration can damage the brake valve assembly components.
SUMMARY OF THE INVENTION
In a first aspect, the present invention provides for a locomotive brake valve having a spring with enhanced damping capabilities. The spring includes a compression member having a predetermined load rating and a predetermined length, and an elastomeric material encasing the compression member.
In a further aspect, the present invention provides for a type 26 automatic brake valves having a spring with enhanced damping capabilities.
In still a further aspect, the present invention provides for an SA-type automatic brake valve having a spring with enhanced damping capabilities.
In still a further aspect, the present invention provides for a 30-type automatic brake valve having a spring with enhanced damping capabilities.
OBJECTS OF THE INVENTION
It is therefore a primary object of the present invention to provide a brake valve having a spring with enhanced damping capabilities.
It is a further object of the present invention to substantially minimize spring vibration in a brake valve assembly.
CROSS-REFERENCE TO RELATED APPLICATION
The invention taught in the present application is closely related to the invention taught in co-pending patent application titled "Spring With Enhanced Damping Capabilities", filed concurrently herewith and having serial number This application is assigned to the assignee of the present application. The teachings of this co-pending patent application are incorporated herein by reference thereto.
FIELD OF INVENTION
The present invention relates, in general, to a locomotive brake valve and, more particularly, this invention relates to a spring having enhanced damping capabilities in combination with a locomotive brake valve.
BACKGROUND OF THE INVENTION
Prior to the present invention, a locomotive brake valve is equipped with at least one spring that provides a mechanical force against a diaphragm in order to generate air pressure in the valve. Spring vibration occurs as a result of either the spring operating at its natural frequency, or vibration that is introduced to_ the spring through its environment during normal operation of the brake valve. This vibration can damage the brake valve assembly components.
SUMMARY OF THE INVENTION
In a first aspect, the present invention provides for a locomotive brake valve having a spring with enhanced damping capabilities. The spring includes a compression member having a predetermined load rating and a predetermined length, and an elastomeric material encasing the compression member.
In a further aspect, the present invention provides for a type 26 automatic brake valves having a spring with enhanced damping capabilities.
In still a further aspect, the present invention provides for an SA-type automatic brake valve having a spring with enhanced damping capabilities.
In still a further aspect, the present invention provides for a 30-type automatic brake valve having a spring with enhanced damping capabilities.
OBJECTS OF THE INVENTION
It is therefore a primary object of the present invention to provide a brake valve having a spring with enhanced damping capabilities.
It is a further object of the present invention to substantially minimize spring vibration in a brake valve assembly.
Still a further object of the present invention is to substantially minimize brake valve assembly component damage as a result of spring vibration.
In addition to the various objects of the invention that have been described above, various other objects and advantages will become more readily apparent to those persons skilled in the relevant art from the following more detailed description of the invention, particularly, when such description is taken in conjunction with the attached figures and the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a vertical sectional view of a presently preferred embodiment of a locomotive brake valve assembly comprising a spring having enhanced damping capabilities; and Figure 2 is an enlarged sectional view, which shows the portion of the locomotive brake valve assembly comprising a spring having enhanced damping capabilities.
BRIEF DECSCRIPTION OF A PRESENTLY
PREFERRED AND VARIOUS ALTERNATIVE
EMBODIMENTS OE THE PRESENT INVENTION
Prior to proceeding to a more detailed description of the invention, it should be noted that identical components having identical functions have, been designated with identical reference numerals for the sake of clarity.
Now refer more particularly to Figures 1 and 2 of the drawings. Illustrated therein is a locomotive brake valve, generally designated 10, comprising a spring, generally designated 20 for providing enhanced damping capabilities, having a compression member 21 of a predetermined load rating and a predetermined length, and an elastomeric material 22 encasing the compression member 21. Preferably, the compression member 21 is helical, wherein the elastomeric material 22 substantially surrounds the compression member 21. The elastomeric material 22 is a predetermined shape. Preferably, the shape is cylindrical, and includes an inside cylinder 25 and an outside cylinder 26. The compression member 21 is disposed intermediate such inside cylinder 25 and such outside cylinder 26 of the elastomeric material 22. The compression member 21 is metal.
Preferably, the metal is steel.
The elastomeric material 22 further includes a predetermined composition as a means for substantially limiting the vibration of the spring 20. The elastomeric material 22 is pre-selected from the group consisting of neoprene, chloroprene, silicon rubber, and nitrile rubber.
Preferably, the elastomeric material 22 is neoprene.
The spring 20 is disposed intermediate to a pressure regulating means, generally designated 30, and a spring seat 40. The spring 20 further includes a first end 23 and a second end 24. Preferably, the first end 23 of the spring 20 contacts the pressure regulating means 30 and the second end 24 is located at a predetermined position. Preferably, the pressure regulating means 30 is a diaphragm 31, and the predetermined position of the second end 24 is adjustable.
The spring 20 is engaged against the diaphragm 31 as a means of exerting mechanical force for generating air pressure in the brake valve 10.
In combination with a locomotive brake valve 10 having a diaphragm 31, and a spring seat 40, the improvement comprises at least one spring 20 having enhanced damping capabilities.
In combination with a 26-C automatic brake valve, the improvement further comprises one spring 20 having enhanced damping capabilities. In combination with an SA-type independent brake valve, the improvement comprises one spring 20 having enhanced damping capabilities. In combination with a 30-type brake valve, the improvement comprises two springs 20 having enhanced damping capabilities.
Although the invention has been shown in connection with a certain specific embodiment, it will be readily apparent to those skilled in the art that various changes in form and arrangement of parts and method may be made to suit requirements without departing from the spirit and scope of the invention.
In addition to the various objects of the invention that have been described above, various other objects and advantages will become more readily apparent to those persons skilled in the relevant art from the following more detailed description of the invention, particularly, when such description is taken in conjunction with the attached figures and the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a vertical sectional view of a presently preferred embodiment of a locomotive brake valve assembly comprising a spring having enhanced damping capabilities; and Figure 2 is an enlarged sectional view, which shows the portion of the locomotive brake valve assembly comprising a spring having enhanced damping capabilities.
BRIEF DECSCRIPTION OF A PRESENTLY
PREFERRED AND VARIOUS ALTERNATIVE
EMBODIMENTS OE THE PRESENT INVENTION
Prior to proceeding to a more detailed description of the invention, it should be noted that identical components having identical functions have, been designated with identical reference numerals for the sake of clarity.
Now refer more particularly to Figures 1 and 2 of the drawings. Illustrated therein is a locomotive brake valve, generally designated 10, comprising a spring, generally designated 20 for providing enhanced damping capabilities, having a compression member 21 of a predetermined load rating and a predetermined length, and an elastomeric material 22 encasing the compression member 21. Preferably, the compression member 21 is helical, wherein the elastomeric material 22 substantially surrounds the compression member 21. The elastomeric material 22 is a predetermined shape. Preferably, the shape is cylindrical, and includes an inside cylinder 25 and an outside cylinder 26. The compression member 21 is disposed intermediate such inside cylinder 25 and such outside cylinder 26 of the elastomeric material 22. The compression member 21 is metal.
Preferably, the metal is steel.
The elastomeric material 22 further includes a predetermined composition as a means for substantially limiting the vibration of the spring 20. The elastomeric material 22 is pre-selected from the group consisting of neoprene, chloroprene, silicon rubber, and nitrile rubber.
Preferably, the elastomeric material 22 is neoprene.
The spring 20 is disposed intermediate to a pressure regulating means, generally designated 30, and a spring seat 40. The spring 20 further includes a first end 23 and a second end 24. Preferably, the first end 23 of the spring 20 contacts the pressure regulating means 30 and the second end 24 is located at a predetermined position. Preferably, the pressure regulating means 30 is a diaphragm 31, and the predetermined position of the second end 24 is adjustable.
The spring 20 is engaged against the diaphragm 31 as a means of exerting mechanical force for generating air pressure in the brake valve 10.
In combination with a locomotive brake valve 10 having a diaphragm 31, and a spring seat 40, the improvement comprises at least one spring 20 having enhanced damping capabilities.
In combination with a 26-C automatic brake valve, the improvement further comprises one spring 20 having enhanced damping capabilities. In combination with an SA-type independent brake valve, the improvement comprises one spring 20 having enhanced damping capabilities. In combination with a 30-type brake valve, the improvement comprises two springs 20 having enhanced damping capabilities.
Although the invention has been shown in connection with a certain specific embodiment, it will be readily apparent to those skilled in the art that various changes in form and arrangement of parts and method may be made to suit requirements without departing from the spirit and scope of the invention.
Claims (18)
1. In combination with a railway locomotive brake valve, the improvement comprising a spring for providing enhanced damping capabilities, said spring comprising:
(a) a compression member having a predetermined load rating and a predetermined length;
(b) an elastomeric material encasing said member.
(a) a compression member having a predetermined load rating and a predetermined length;
(b) an elastomeric material encasing said member.
2. The combination according to claim 1 wherein said member is helical.
3. The combination according to claim 1 wherein said elastomeric material substantially surrounds said member.
4. The combination according to claim 1 wherein said elastomeric material is a predetermined shape.
5. The combination according to claim 4 wherein said predetermined shape is cylindrical.
6. The combination according; to claim 4 wherein said predetermined shape further includes an inside cylinder and an outside cylinder.
7 7. The combination according to claim 6 wherein said member is disposed intermediate said inside cylinder and said outside cylinder of said elastomeric material.
8. The combination according to claim 1 wherein said member is metal.
9. The combination according to claim 8 wherein said metal is steel.
10. The combination according to claim 1 wherein said elastomeric material further includes a predetermined composition as a means for substantially limiting vibration of Said spring.
11. The combination according to claim 10 wherein said elastomeric material is selected from the group consisting of neoprene, chloroprene, silicon rubber, nitrile rubber, and mixtures thereof.
12. The combination according to claim 11 wherein the said predetermined composition is neoprene.
13. The combination according to claim 1 wherein said spring is disposed intermediate to a pressure regulating means and a spring seat.
14. The combination according to claim 1 wherein said spring includes a first end and a second end.
15. The combination according to claim 14 wherein said first end of said spring contacts such pressure regulating means and said second end is located at a predetermined position.
16. The combination according to claim 15 wherein such pressure regulating means is a diaphragm.
17. The combination according to claim 15 wherein said predetermined position is adjustable.
18. The combination according to claim 15 wherein said spring is engaged against such diaphragm for exerting a mechanical force and generating air pressure in such locomotive brake valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US636,356 | 1990-12-31 | ||
| US63635600A | 2000-08-11 | 2000-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2327024A1 true CA2327024A1 (en) | 2002-02-11 |
Family
ID=24551538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002327024A Abandoned CA2327024A1 (en) | 2000-08-11 | 2000-11-21 | Locomotive brake valve |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2002104171A (en) |
| AU (1) | AU3509201A (en) |
| BR (1) | BR0101644A (en) |
| CA (1) | CA2327024A1 (en) |
| MX (1) | MXPA01007434A (en) |
-
2000
- 2000-11-21 CA CA002327024A patent/CA2327024A1/en not_active Abandoned
-
2001
- 2001-04-10 AU AU35092/01A patent/AU3509201A/en not_active Abandoned
- 2001-04-30 BR BR0101644-0A patent/BR0101644A/en not_active IP Right Cessation
- 2001-07-23 MX MXPA01007434A patent/MXPA01007434A/en unknown
- 2001-08-08 JP JP2001241176A patent/JP2002104171A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA01007434A (en) | 2002-04-24 |
| AU3509201A (en) | 2002-02-14 |
| BR0101644A (en) | 2002-04-02 |
| JP2002104171A (en) | 2002-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |