WO2007054993A1 - Automatic device for cooling brakes of trucks and/or trailers - Google Patents

Automatic device for cooling brakes of trucks and/or trailers Download PDF

Info

Publication number
WO2007054993A1
WO2007054993A1 PCT/IT2006/000774 IT2006000774W WO2007054993A1 WO 2007054993 A1 WO2007054993 A1 WO 2007054993A1 IT 2006000774 W IT2006000774 W IT 2006000774W WO 2007054993 A1 WO2007054993 A1 WO 2007054993A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
trailers
trucks
cooling
temperature
Prior art date
Application number
PCT/IT2006/000774
Other languages
French (fr)
Inventor
Domenico Piatti
Original Assignee
Domenico Piatti
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Domenico Piatti filed Critical Domenico Piatti
Publication of WO2007054993A1 publication Critical patent/WO2007054993A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/78—Features relating to cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D2066/001—Temperature

Definitions

  • the device of the present invention seeks to avoid the problem mentioned above.
  • the present patent application for industrial invention aims at providing a device able to detect any overheating of the brake as well as a device able to cool the brake as the latter gets overheated.
  • a further object of the invention is to provide a device that can be easily installed in trucks and/or trailers .
  • the solution consists of providing a brake cooling system by using a cooling liquid or gas which is fed to the brake friction portions as the brake is operating.
  • Such portions can be for instance the brake shoes or discs according to the braking system.
  • the device consists of one or more temperature probes (1) which are applied to the surface of the brake shoes to sense the temperature continuously and to transmit temperature data to a central exchange (2) located near the driver.
  • the output of the central exchange is connected to a dispenser (3) consisting of a sealed housing including a chamber (4) containing an inert gas, for example CO 2 , or other liquid or gaseous refrigerant under pressure.
  • Dispenser (3) is provided with several valves (5) the outputs (6) of which are connected to the brakes of wheels (7) by pipes (8) .
  • Valves (5) are provided with stems (9) that can move along their axis.
  • each valve stem is in contact with a cam (10) .
  • Springs (13) serve to shut valves (5) under no gas pressure .
  • valves (5) remain closed by the same pressure of the inert gas contained in chamber (4), while shaft (11) is in such a position that cams (10) do not contact stems (9) .
  • temperature probe (1) detects such variation and transmits it to central exchange (2) that warns the driver and at the same time drives automatically motor (12) causing the cam to open the valve of that brake.
  • the inert gas flows out of dispenser and is injected through pipe (8) to Y brake (7) to cool it.
  • the central exchange shuts valve (5) corresponding to that brake again. Conversely, if temperature still increases, the central exchange keeps the valve open, thus causing the refrigerant to be continuously discharged onto the brake .
  • the device can also provide for the cooling of the engine and/or turbine compartment.
  • the device can also be used in all applications in which the temperature of apparatus subjected to undesired heating should be checked.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

A device is disclosed which detects the increase in the temperature of the braking system by suitable probes (l)and drives a motor (12) that operates cams (10) to open valves (5) for the delivery of a refrigerating fluid under pressure to the brakes (7) getting overheated.

Description

Automatic device for cooling brakes of trucks and/or trailers
As known, trucks and/or trailers are subject to overheating of their brakes in case of extended use or following the failure of some component.
As a truck is running at full load or to a downhill road, the overheating of the brake of a wheel is detected by the driver because only one brake is not able to slacken strongly the speed of the truck. Moreover, an overheated brake does not provide a great braking force because the increase in the temperature lowers friction coefficient.
Under such circumstances, the temperature of the brake, drum or wheel disc increases by several hundreds of degrees causing the tyre to catch fire. The device of the present invention seeks to avoid the problem mentioned above.
The present patent application for industrial invention aims at providing a device able to detect any overheating of the brake as well as a device able to cool the brake as the latter gets overheated. A further object of the invention is to provide a device that can be easily installed in trucks and/or trailers .
The solution consists of providing a brake cooling system by using a cooling liquid or gas which is fed to the brake friction portions as the brake is operating. Such portions can be for instance the brake shoes or discs according to the braking system. This solution is schematically shown in the accompanying drawing only by way of a not limiting example.
The device consists of one or more temperature probes (1) which are applied to the surface of the brake shoes to sense the temperature continuously and to transmit temperature data to a central exchange (2) located near the driver.
The output of the central exchange is connected to a dispenser (3) consisting of a sealed housing including a chamber (4) containing an inert gas, for example CO2, or other liquid or gaseous refrigerant under pressure. Dispenser (3) is provided with several valves (5) the outputs (6) of which are connected to the brakes of wheels (7) by pipes (8) . Valves (5) are provided with stems (9) that can move along their axis.
The upper portion of each valve stem is in contact with a cam (10) .
Cams (10) of valves (5)
Figure imgf000003_0001
disposed on a shaft (11) displaced by step motor (12) . Springs (13) serve to shut valves (5) under no gas pressure .
Under rest conditions, valves (5) remain closed by the same pressure of the inert gas contained in chamber (4), while shaft (11) is in such a position that cams (10) do not contact stems (9) .
As a brake (7) gets overheated, temperature probe (1) detects such variation and transmits it to central exchange (2) that warns the driver and at the same time drives automatically motor (12) causing the cam to open the valve of that brake.
Thus the inert gas flows out of dispenser and is injected through pipe (8) toY brake (7) to cool it. As the temperature of an overheated brake drops under a determined value because of cooling, the central exchange shuts valve (5) corresponding to that brake again. Conversely, if temperature still increases, the central exchange keeps the valve open, thus causing the refrigerant to be continuously discharged onto the brake .
In case two or more brakes get overheated concurrently the system is able to cool them by the same operative principle .
The device can also provide for the cooling of the engine and/or turbine compartment.
The device can also be used in all applications in which the temperature of apparatus subjected to undesired heating should be checked.
Formal, structural changes of the solution of the present invention can also be made without departing from the scope of the inventive concept which is defined by the following claims.

Claims

Claims
1. An automatic device for cooling brakes of trucks and/or trailers, wherein there is provided a temperature probes (1) able to detect the increase in the temperature of the brake shoes or discs and connected to a central exchange (2) able to warn the driver as well as to drive automatically a motorized dispenser (12) of refrigerating fluid contained in a tank and to open valve (5) for the delivery of such refrigerating fluid to the overheated brake.
2. The device according to the preceding claim, characterized by a dispenser (3) the opening of whose valves (5) is driven by a cam shaft (11) moved by a step motor (12) .
3. The device according to the preceding claim, characterized in that the cooling fluid is a gas.
4. The device according to the preceding claims, characterized in that the cooling fluid is a liquid.
PCT/IT2006/000774 2005-11-10 2006-11-06 Automatic device for cooling brakes of trucks and/or trailers WO2007054993A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITNA20050058 ITNA20050058A1 (en) 2005-11-10 2005-11-10 AUTOMATIC DEVICE FOR COOLING TRUCKS AND / OR TRAILERS BRAKES.
ITNA2005A000058 2005-11-10

Publications (1)

Publication Number Publication Date
WO2007054993A1 true WO2007054993A1 (en) 2007-05-18

Family

ID=37672299

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2006/000774 WO2007054993A1 (en) 2005-11-10 2006-11-06 Automatic device for cooling brakes of trucks and/or trailers

Country Status (2)

Country Link
IT (1) ITNA20050058A1 (en)
WO (1) WO2007054993A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2187081A1 (en) * 2007-09-10 2010-05-19 Komatsu Ltd Working vehicle and method of controlling working vehicle
EP2225130A1 (en) * 2007-12-20 2010-09-08 Volvo Lastvagnar AB A method and a vehicle system for ensuring the functionality of a brake assembly and a vehicle comprising such system
ITFI20120101A1 (en) * 2012-05-30 2013-12-01 D Ancona Pier Lorenzo Levi DEVICE ACTING TO ADJUST THE BRAKE TEMPERATURE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19807392A1 (en) * 1997-03-05 1998-09-10 Volkswagen Ag Device for cooling of road vehicle brakes
US5899437A (en) * 1997-12-12 1999-05-04 Applied Precision, Inc. Cam actuated valve
US6357563B1 (en) * 2001-03-29 2002-03-19 Meritor Heavy Vehicle Technology, L.L.C. Brake assembly with air cooling system
EP1203896A2 (en) * 2000-11-02 2002-05-08 Meritor Heavy Vehicle Technology, LLC Driveline Cooling System
US6419054B1 (en) * 1999-09-21 2002-07-16 Gerald Schulba Cooling system for a brake
FR2841952A1 (en) * 2002-07-02 2004-01-09 Renault Sa Cooling air feed for motor vehicle disc brakes has sensor to determine overheating and compressed air tank to feed air onto brakes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19807392A1 (en) * 1997-03-05 1998-09-10 Volkswagen Ag Device for cooling of road vehicle brakes
US5899437A (en) * 1997-12-12 1999-05-04 Applied Precision, Inc. Cam actuated valve
US6419054B1 (en) * 1999-09-21 2002-07-16 Gerald Schulba Cooling system for a brake
EP1203896A2 (en) * 2000-11-02 2002-05-08 Meritor Heavy Vehicle Technology, LLC Driveline Cooling System
US6357563B1 (en) * 2001-03-29 2002-03-19 Meritor Heavy Vehicle Technology, L.L.C. Brake assembly with air cooling system
FR2841952A1 (en) * 2002-07-02 2004-01-09 Renault Sa Cooling air feed for motor vehicle disc brakes has sensor to determine overheating and compressed air tank to feed air onto brakes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2187081A1 (en) * 2007-09-10 2010-05-19 Komatsu Ltd Working vehicle and method of controlling working vehicle
EP2187081A4 (en) * 2007-09-10 2014-11-05 Komatsu Mfg Co Ltd Working vehicle and method of controlling working vehicle
EP2225130A1 (en) * 2007-12-20 2010-09-08 Volvo Lastvagnar AB A method and a vehicle system for ensuring the functionality of a brake assembly and a vehicle comprising such system
EP2225130A4 (en) * 2007-12-20 2011-07-06 Volvo Lastvagnar Ab A method and a vehicle system for ensuring the functionality of a brake assembly and a vehicle comprising such system
ITFI20120101A1 (en) * 2012-05-30 2013-12-01 D Ancona Pier Lorenzo Levi DEVICE ACTING TO ADJUST THE BRAKE TEMPERATURE

Also Published As

Publication number Publication date
ITNA20050058A1 (en) 2007-05-11

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