AU8872101A - Methods and system for passing signals through a pipe bracket - Google Patents
Methods and system for passing signals through a pipe bracket Download PDFInfo
- Publication number
- AU8872101A AU8872101A AU88721/01A AU8872101A AU8872101A AU 8872101 A AU8872101 A AU 8872101A AU 88721/01 A AU88721/01 A AU 88721/01A AU 8872101 A AU8872101 A AU 8872101A AU 8872101 A AU8872101 A AU 8872101A
- Authority
- AU
- Australia
- Prior art keywords
- passageway
- valve
- emergency
- pipe bracket
- emergency brake
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/665—Electrical control in fluid-pressure brake systems the systems being specially adapted for transferring two or more command signals, e.g. railway systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Description
METHODS AND SYSTEM FOR PASSING SIGNALS THROUGH A PIPE BRACKET BACKGROUND OF THE INVENTION This invention relates generally to brake pipes and, more particularly, to passing signals through a pipe bracket. In a train air brake system, a brake pipe extends from a lead locomotive then to a first rail car then to additional rail cars until ending at the last rail car. The 5 brake pipe typically is used to charge a plurality of compressed air tanks in the rail cars. These tanks provide an energy source utilized for applying a brake application. Typically, when no brake application is needed, and the train is operating normally, a high pressure exists in the brake pipe. Since the air tanks are in flow communication with the brake pipe, the air tanks, accordingly, are charged to the same pressure as the 10 air in the brake pipe during a normal non-braking operation. Additionally, the brake pipe signals to actuate brakes as explained below. When brakes are to be applied, air is vented from the brake pipe by the lead locomotive, thus causing a reduction in air pressure throughout the brake pipe. When the air pressure in the brake pipe drops, valving in the rail cars utilize the air in the air 15 tanks to supply a plurality of brake cylinders a sufficient air pressure to force a plurality of brake shoes against a plurality of wheels. Typically, the valving includes a pipe bracket including a service side and an emergency side. The service side is used to control an airflow from an auxiliary reservoir to the brake cylinders and a recharging of an emergency reservoir and the auxiliary reservoir after a braking 20 application. The service side is further used to control an exhaust of air from the brake cylinders when the brakes are released and to reinforce the braking application and release signals being pneumatically conveyed by the brake pipe. The emergency side of the pipe bracket is used to recognize an emergency brake signal and when receiving such a signal, to control an airflow from WO 02/22420 PCT/USO1/27455 both the emergency and auxiliary air tanks to the brake cylinders. The emergency side is further used to rapidly vent brake pipe pressure to atmosphere. Both the emergency side and the service side have a plurality of openings for airflow. The openings on the emergency side are typically larger than 5 openings on the supply side, and allow for greater airflow on the emergency side. However, an emergency brake valve is located on the emergency side of the pipe bracket while a manual vent is located on the service side. Accordingly, it would be desirable to pass a pneumatic signal through a pipe bracket and control the manual vent and the emergency brake valve from a single side of the pipe bracket. 10 BRIEF SUMMARY OF THE INVENTION In an exemplary embodiment, a manual vent and an emergency brake valve are coupled to a pipe bracket such that the manual vent is in flow communication, with the emergency brake valve utilizing a passageway between a service side of the pipe bracket and a emergency side of the pipe bracket. When the 15 manual vent is actuated, the passageway is pressurized which resets the emergency brake valve. Once the emergency brake valve is reset, the passageway is opened to atmosphere. Accordingly, a signal is passed through a pipe bracket and both the manual vent and the emergency brake valve are controlled from a single side of the pipe bracket. BRIEF DESCRIPTION OF THE DRAWINGS 20 Figure 1 is plan view of a pipe bracket; Figure 2 is a plan view of an emergency side of the pipe bracket shown in Figure 1; Figure 3 is a plan view of a brake pipe side of the pipe bracket shown in Figure 1; and -2- WO 02/22420 PCT/USO1/27455 Figure 4 is schematic view of a system for passing a signal through the pipe bracket shown in Figure 1. DETAILED DESCRIPTION OF THE INVENTION Figure I is a plan view of a pipe bracket 10 (e.g., an ADBW control valve available from the Westinghouse Air Brake Company) including a service side 5 12. Figure 2 is a plan view of an emergency side 14 of pipe bracket 10 and Figure 3 is a plan view of a brake pipe side 16 of pipe bracket 10. In one embodiment, pipe bracket 10 is utilized as a hub for airflow in a pneumatic system for rail cars (not shown). Service side 10 and emergency side 14 have a plurality of openings 18 accessing a plurality of passageways (not shown) interior to pipe bracket 10. 10 Openings 16 include a first opening 20 on service side 10 and a second opening 22 and a third opening 24 on emergency side 14. First, second, and third openings 20, 22, and 24 are in flow communication with each other via a first passageway 25 extending between service side 12 and emergency side 14. In one embodiment, openings 20, 22, and 24 are not 15 in flow communication with other openings 18 or with other passageways of pipe bracket 10. Pipe bracket 10 is also connected to a brake pipe (not shown in Figures 1, 2 and 3), which supplies air to pipe bracket 10. Pipe bracket 10 further includes a plurality of bolt holes 26, an exhaust port 28, an auxiliary reservoir port 30, an emergency reservoir port 32, a brake cylinder port 34, and a brake pipe port 36. 20 Figure 4 is a schematic view of a signal passing system 38 configured such that a signal is passed through a pipe bracket, such as pipe bracket 10 shown in Figure 1, and both a manual vent 40 and an emergency brake valve 42 are controlled from a single side of pipe bracket 10. Emergency brake valve 42 is in flow communication with manual vent 40 through pipe bracket 10. System 38 further 25 includes an auxiliary reservoir 44, an emergency reservoir 46, an exhaust 48, a brake pipe 50, a brake pipe filter 52, a check valve 54, and a brake cylinder 56. Exhaust 48 and brake cylinder 56 are in flow communication with emergency brake valve 42 such that exhaust 48 is between brake cylinder 56 and emergency brake valve 42. -3- WO 02/22420 PCT/USO1/27455 Auxiliary reservoir 46 and emergency reservoir 46 are in flow communication with emergency brake valve 42 opposite brake cylinder 56. Check valve 54 is in flow communication with emergency brake valve 42 and pipe bracket 10. Brake pipe 50 is in flow communication with auxiliary reservoir 46 and emergency reservoir 46. Brake 5 pipe filter 52 is in flow communication with brake pipe 50. Manual vent 40 includes an exhaust path 58. In one embodiment, all valves of system 38 except manual vent 40 are located on emergency side 14 of pipe bracket 10 and manual vent 40 is located on service side 12. Emergency brake valve 42 includes a pilot 60 configured to reset 10 emergency brake valve 42. In an exemplary embodiment, manual vent 40 is coupled to pipe bracket service side 12 (shown in Figure 1) at first opening 20 (shown in Figure 1), and emergency brake valve 42 is coupled to emergency side 14 (shown in Figure 2) at second and third openings 22 and 24 (shown in Figure 2). In an alternative embodiment, emergency brake valve 42 is coupled to at least one of second 15 opening 22 and third opening 24. In a further alternative embodiment, emergency brake valve 42 is coupled to at least one opening 18 on emergency side 14 and manual vent 40 is coupled to at least one opening 18 on service side 12 and a passageway other than first passageway 25 is utilized such that a signal is passed through pipe bracket 10 and both manual vent 40 and emergency brake valve 42 are controlled 20 from a single side of pipe bracket 10. During operation of system 38, manual vent 40 is actuated which results in a passageway being pressurized. Emergency brake valve 42 is in flow communication with the passageway and when the passageway is pressurized, pilot 60 is pressurized and, accordingly, emergency brake valve 42 is reset allowing the 25 passageway to open to atmosphere. When the passageway is open to atmosphere, stored pressurized air (not shown) from both sides of pipe bracket 10 vents to atmosphere. Accordingly, a pneumatic signal is passed through a pipe bracket such that actuating manual vent 40 resets emergency brake valve 42. In an exemplary embodiment, the passageway is first passageway 25, 30 which is defined by first opening 20, second opening 22, and third opening 24. In a -4- WO 02/22420 PCT/USO1/27455 further embodiment, system 10 is attached under a rail car. In an alternative embodiment, system 10 is utilized in pneumatic systems for tractor-trailers and aircraft. It is contemplated that the benefits of system 10 accrue to all applications that employ pneumatic systems. 5 While the invention has been described in terms of various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modification within the spirit and scope of the claims. -5-
Claims (30)
1. A method for passing a signal through a pipe bracket (10), said method comprising the steps of: coupling a manual vent valve (40) in flow communication with an emergency side (14) of the pipe bracket; and 5 actuating the manual vent valve.
2. A method according to Claim 1 wherein said step of coupling a manual vent valve (40) further comprises the step of coupling a manual vent valve in flow communication with a passageway of the pipe bracket (10).
3. A method according to Claim 1 further comprising the step of 10 coupling an emergency brake valve (42) in flow communication with an emergency side (14) of the pipe bracket (10) such that actuating the manual vent valve (40) resets the emergency brake valve.
4. A method according to Claim 3 wherein said step of coupling an emergency brake valve (42) further comprises the step of coupling an emergency 15 brake valve in flow communication with a passageway.
5. A method according to Claim 1 wherein said step of actuating the manual vent valve (40) further comprises the step of actuating the manual vent valve such that a first passageway (25) is pressurized.
6. A method according to Claim 1 wherein said step of coupling 20 further comprises the step of coupling an emergency brake valve (42) in flow communication with an emergency side (14) of the pipe bracket (10) such that actuating the manual vent valve (40) resets an emergency brake valve allowing a first passageway (25) to open to atmosphere.
7. A method according to Claim 6 wherein said step of coupling an 25 emergency brake valve (42) further comprises the step of coupling an emergency 6 WO 02/22420 PCT/USO1/27455 brake valve in flow communication with the manual vent valve (40) utilizing the first passageway (25) through the pipe bracket (10).
8. A method according to Claim 2 wherein said step of coupling a manual vent (40) further comprises the step of coupling a manual vent valve in flow 5 communication with a first passageway (25) of the pipe bracket (10).
9. A method according to Claim 4 wherein said step of coupling an emergency brake valve (42) further comprises the step of coupling an emergency brake valve in flow communication with a first passageway (25).
10. A method according to Claim 6 wherein said step of coupling an 10 emergency brake valve (42) further comprises the step of coupling an emergency brake valve for a rail car in flow communication with the manual vent valve (40) utilizing the first passageway (25) through the pipe bracket (10).
11. A method for actuating a pneumatic brake system, said method comprising the steps of: 15 decreasing air pressure in a service side (12) of a brake pipe (50); and passing a signal through a pipe bracket (10).
12. A method according to Claim 11 wherein said step of decreasing air pressure further comprises the step of actuating a manual vent valve (40).
13. A method according to Claim 11 wherein said step of passing a 20 signal further comprises the step of passing a signal through the pipe bracket (10) utilizing a passageway.
14. A method according to Claim 11 wherein said step of passing a signal through a pipe bracket (10) further comprises the step of sending a reset signal to an emergency brake valve (42) through the pipe bracket (10). 7 WO 02/22420 PCT/USO1/27455
15. A method according to Claim 14 wherein said step of sending a reset signal further comprises the step of sending a reset signal to an emergency brake valve (42) through the pipe bracket (10) utilizing a passageway therein.
16. A method according to Claim 11 wherein said step of passing a 5 signal further comprises the step of passing a signal through the pipe bracket (10) utilizing a first passageway (25).
17. A method according to Claim 14 wherein said step of sending a reset signal further comprises the step of sending a reset signal to an emergency brake valve (42) through the pipe bracket (10) utilizing a first passageway (25) therein. 10
18. A method according to Claim 11 wherein said step of decreasing air pressure further comprises the step of actuating a manual vent valve (40) for a rail car.
19. A method according to Claim 14 wherein said step of sending a reset signal further comprises the step of sending a reset signal to an emergency brake 15 valve (42) for a rail car through the pipe bracket (10) utilizing a first passageway (25) therein.
20. A system (38) for passing a pneumatic signal, said system comprising: a control valve (10) comprising a first passageway (25) extending from 20 a service side (12) of said valve to an emergency side (14) of said valve; a manual vent valve (40) in flow communication with said first passageway; and an emergency brake valve (42) in flow communication with said first passageway. 8 WO 02/22420 PCT/USO1/27455
21. A system (38) in accordance with Claim 20 wherein said emergency brake valve (42) configured to be reset when said manual vent valve (40) is actuated
22. A system (38) in accordance with Claim 21 wherein said manual 5 vent (40) in flow communication with said first passageway (25) at said service side (12).
23. A system (38) in accordance with Claim 21 wherein said emergency brake valve (42) in flow communication with said first passageway (25) at said emergency side (14). 10
24. A system (38) in accordance with Claim 21 wherein said emergency brake valve (42) in flow communication with said first passageway (25) at said emergency side (14), said manual vent (40) in flow communication with said first passageway (25) at said service side (12).
25. A system (38) in accordance with Claim 21 wherein said first 15 passageway (25) configured to open to atmosphere when said emergency brake valve (42) is reset.
26. A system (38) in accordance with Claim 21 wherein said first passageway (25) configured to open to atmosphere when said emergency brake valve (42) is reset, said emergency brake valve in flow communication with said first 20 passageway at said emergency side (14), said manual vent (40) in flow communication with said first passageway at said service side (12).
27. A system (38) in accordance with Claim 20 wherein said first passageway (25) configured to open to atmosphere when said emergency brake valve (42) is reset, said emergency brake valve in flow communication with said first 25 passageway at said emergency side (14), said manual vent (40) in flow communication with said first passageway at said service side (12). 9 WO 02/22420 PCT/USO1/27455
28. A system (38) in accordance with Claim 20 wherein said first passageway (25) configured to open to atmosphere when said emergency brake valve (42) is reset.
29. A system (38) in accordance with Claim 20 wherein said control 5 valve (10) comprises an ABDW control valve.
30. A system (38) in accordance with Claim 26 wherein said emergency brake valve (42) comprises an emergency brake valve for a rail car. 10
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66297000A | 2000-09-15 | 2000-09-15 | |
| US09662970 | 2000-09-15 | ||
| PCT/US2001/027455 WO2002022420A2 (en) | 2000-09-15 | 2001-09-05 | Methods and system for passing signals through a pipe bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU8872101A true AU8872101A (en) | 2002-03-26 |
Family
ID=24659976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU88721/01A Abandoned AU8872101A (en) | 2000-09-15 | 2001-09-05 | Methods and system for passing signals through a pipe bracket |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU8872101A (en) |
| WO (1) | WO2002022420A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10242543A1 (en) * | 2002-09-13 | 2004-04-01 | Haldex Brake Products Gmbh | Device for connecting two mutually facing flanges of components |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5478142A (en) * | 1994-07-26 | 1995-12-26 | New York Air Brake Corporation | Single sided control valve and pipe bracket arrangement |
| US5480218C1 (en) * | 1994-09-15 | 2001-05-01 | Westinghouse Air Brake Co | Railway brake pipe bracket with access ports |
| US5634696A (en) * | 1994-09-15 | 1997-06-03 | Hart; James E. | Railway brake pipe bracket with access ports |
| US5429427A (en) * | 1994-09-23 | 1995-07-04 | New York Air Brake | Air brake control valve with combined graduated and direct release |
| US6102368A (en) * | 1998-12-15 | 2000-08-15 | New York Air Brake Corporation | Remote control of a valve |
-
2001
- 2001-09-05 AU AU88721/01A patent/AU8872101A/en not_active Abandoned
- 2001-09-05 WO PCT/US2001/027455 patent/WO2002022420A2/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002022420A3 (en) | 2002-06-13 |
| WO2002022420A2 (en) | 2002-03-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK1 | Application lapsed section 142(2)(a) - no request for examination in relevant period |