WO2009092521A1 - Fluid supply systems - Google Patents

Fluid supply systems Download PDF

Info

Publication number
WO2009092521A1
WO2009092521A1 PCT/EP2009/000119 EP2009000119W WO2009092521A1 WO 2009092521 A1 WO2009092521 A1 WO 2009092521A1 EP 2009000119 W EP2009000119 W EP 2009000119W WO 2009092521 A1 WO2009092521 A1 WO 2009092521A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
supply system
fluid
conduit
tubular stiffening
Prior art date
Application number
PCT/EP2009/000119
Other languages
French (fr)
Inventor
Georg Frank
Original Assignee
Agco Gmbh
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 Agco Gmbh filed Critical Agco Gmbh
Priority to EP09703757.6A priority Critical patent/EP2242934B1/en
Publication of WO2009092521A1 publication Critical patent/WO2009092521A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/042—Controlling the temperature of the fluid
    • F15B21/0423—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/048—Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits

Definitions

  • This invention relates to a fluid supply system on a tractor such as systems used to supply pressurised air to actuate functions on the tractor.
  • Such air supply systems typically comprise a compressor which is connected with a storage tank in which the pressurised air is stored.
  • planar support members carried on the tractor chassis for carrying such items as fuel tanks, batteries and other components.
  • planar support members not only support the components but also protect the components from blows from beneath during use of the tractor which is especially important for fuel tanks and the like.
  • planar support members hereinafter referred to as being of the kind described, may comprise a plate-like member at least partially surrounded by a tubular stiffening member which is secured to the periphery of the plate-like member.
  • a fluid supply system which includes a conduit through which fluid flows in the system, the system being characterised in that at least part of the conduit is provided by the tubular stiffening member of a support member of the kind described so that the fluid is cooled as it passes through the tubular stiffening member.
  • the invention is preferably used to supply pressurised air and comprises an air compressor, a tank to receive the pressurised air from the compressor, a conduit connecting the compressor and tank, and a drier to remove moisture from the air as it passes from the compressor to the tank, the air being cooled as it passes through the tubular stiffening member.
  • the present invention can also be used to supply coolant to a vehicle engine or pressurised hydraulic fluid to a hydraulic valve or hydraulic consumer.
  • Figure 1 shows a plan view of part of a tractor fitted with an air supply system in accordance with the present invention
  • Figure 2 shows a side view of the tractor of Figure 1 ;
  • Figure 3 shows a perspective view of the air supply system of Figure 1 .
  • Figure 4 shows a cross-section on the line X-X of Figure 1.
  • a tractor chassis 10 comprises an engine block 1 1 , transmission 12 and back axle 13.
  • Mounted on the chassis 10 is a pair of support members 14 and 15 which are carried on cross beam 16 which is supported from beneath the chassis.
  • Each support member comprises a flat support plate 14a, 15a which is surrounded by a tubular stiffening member 14b, 15b respectively.
  • the stiffening members are welded or otherwise secured to the periphery of the plates 14a, 15a as can be seen from Figure 4.
  • the support members i4 and 15 are used to mount on the chassis such items as fuel tanks, batteries and other components and not only support these components but protect them against blows from beneath during use of the tractor. This is particularly important in relation to fuel tanks.
  • an air supply system which comprises a compressor 17 mounted on the engine block 1 1, an air storage tank 18 mounted on the transmission 12 and an air drier 19 mounted on the side of the transmission 12. These components are connected by a conduit 20.
  • a first portion 20a of the conduit connects the compressor 17 with an end 14c of the tubular stiffening member 14b. Air then flows from conduit portion 20a around the stiffening member 14b and into the section 20b of the conduit. Air then flows from section 20b into the end 15c of the tubular stiffening member 15b and then exits from the stiffening member 15b via conduit 20c to enter the drier 19. From the drier 19 air passes via conduit 2Od to the storage tank 18.
  • the ends of the tubes 14b and 15b are secured to the cross beam 16 by brackets 14d and 15d respectively.
  • the storage tank 18 is used to supply pressurised air for a variety of potential uses such as, for example, tractor or trailer air braking systems, tractor cab suspension systems and air operated implements such as seed drills.
  • the total length of the conduit 20 connecting the compressor 17 with the storage tank 18 is therefore of considerable length being approximately typically six meters in length. This ensures that heating of the air as it is pumped from the compressor to the storage tank is reduced by dissipation of the heat from the conduit 20 to the ambient air.
  • the present invention thus provides the simple but efficient method of cooling the compressed air which utilises an existing tubular stiffening member which surrounds each support member 14, 15 and through which the compressed air passes on its way from the compressor 17 to the storage tank 18.
  • the existing tubular stiffening members 14b, 15b could be used as part of the conduit to connect the compressor and storage tank which is the essence of the present invention.
  • the invention can also be used for other uses, for example, in systems for supplying coolant to a vehicle engine ⁇ r for supplying pressurised hydraulic fluid to a hydraulic valve or hydraulic consumer. In such systems the fluid is again cooled as it passes through the stiffening members 14b, 15b.
  • a fluid supply system on a tractor includes a conduit through which fluid flows such as compressed air or hydraulic fluid. At least part of the conduit is provided by the tubular stiffening member of a planar support member so that the fluid is cooled as it passes through the tubular stiffening member.
  • the invention thus provides a simple but efficient method of cooling fluid by utilising, an often existing, tubular stiffening member which surrounds a planar support member.

Abstract

A fluid supply system on a tractor is provided. The system includes a conduit (20) through which fluid flows such as compressed air or hydraulic fluid. At least part of the conduit is provided by the tubular stiffening member (14b, 15b) of a planar support member (14,15) so that the fluid is cooled as it passes through the tubular stiffening member. The invention thus provides a simple but efficient method of cooling fluid by utilising, an often existing, tubular stiffening member which surrounds a planar support member.

Description

FLUID SUPPLY SYSTEMS
This invention relates to a fluid supply system on a tractor such as systems used to supply pressurised air to actuate functions on the tractor.
Such air supply systems typically comprise a compressor which is connected with a storage tank in which the pressurised air is stored.
These systems suffer from operational problems if the air becomes heated and arrangements are therefore made to cool the air as it passes from the compressor to the storage tank. Such systems can be damaged if the moisture in the air becomes frozen. In earlier times this problem was dealt with by using anti-freeze fluid in the air but this is no longer done for environmental reasons. Now a drier is installed to dehumidify the air. The problem is that at air temperature above 650C the humidity is vaporised and the drier becomes ineffective. This means that it is necessary to cool the air in order for the drier to operate correctly.
It is also known on agricultural tractors to provide a generally planar support member carried on the tractor chassis for carrying such items as fuel tanks, batteries and other components. Such planar support members not only support the components but also protect the components from blows from beneath during use of the tractor which is especially important for fuel tanks and the like. Such planar support members, hereinafter referred to as being of the kind described, may comprise a plate-like member at least partially surrounded by a tubular stiffening member which is secured to the periphery of the plate-like member.
It is an object of the present invention to provide an improved form of fluid supply system which is particularly suitable for supplying cooled air.
Thus in accordance with the present invention there is provided a fluid supply system which includes a conduit through which fluid flows in the system, the system being characterised in that at least part of the conduit is provided by the tubular stiffening member of a support member of the kind described so that the fluid is cooled as it passes through the tubular stiffening member.
The invention is preferably used to supply pressurised air and comprises an air compressor, a tank to receive the pressurised air from the compressor, a conduit connecting the compressor and tank, and a drier to remove moisture from the air as it passes from the compressor to the tank, the air being cooled as it passes through the tubular stiffening member.
The present invention can also be used to supply coolant to a vehicle engine or pressurised hydraulic fluid to a hydraulic valve or hydraulic consumer.
In a preferred arrangement for use on a tractor there are two support members of the kind described one positioned on each side of the tractor and connected in series in the conduit.
The present invention will now be described, by way of example only, with reference to the accompanying drawings in which:-
Figure 1 shows a plan view of part of a tractor fitted with an air supply system in accordance with the present invention;
Figure 2 shows a side view of the tractor of Figure 1 ;
Figure 3 shows a perspective view of the air supply system of Figure 1 , and
Figure 4 shows a cross-section on the line X-X of Figure 1.
Referring to the drawings a tractor chassis 10 comprises an engine block 1 1 , transmission 12 and back axle 13. Mounted on the chassis 10 is a pair of support members 14 and 15 which are carried on cross beam 16 which is supported from beneath the chassis. Each support member comprises a flat support plate 14a, 15a which is surrounded by a tubular stiffening member 14b, 15b respectively. The stiffening members are welded or otherwise secured to the periphery of the plates 14a, 15a as can be seen from Figure 4. The support members i4 and 15 are used to mount on the chassis such items as fuel tanks, batteries and other components and not only support these components but protect them against blows from beneath during use of the tractor. This is particularly important in relation to fuel tanks.
Also mounted on the tractor chassis is an air supply system which comprises a compressor 17 mounted on the engine block 1 1, an air storage tank 18 mounted on the transmission 12 and an air drier 19 mounted on the side of the transmission 12. These components are connected by a conduit 20. A first portion 20a of the conduit connects the compressor 17 with an end 14c of the tubular stiffening member 14b. Air then flows from conduit portion 20a around the stiffening member 14b and into the section 20b of the conduit. Air then flows from section 20b into the end 15c of the tubular stiffening member 15b and then exits from the stiffening member 15b via conduit 20c to enter the drier 19. From the drier 19 air passes via conduit 2Od to the storage tank 18. The ends of the tubes 14b and 15b are secured to the cross beam 16 by brackets 14d and 15d respectively. The storage tank 18 is used to supply pressurised air for a variety of potential uses such as, for example, tractor or trailer air braking systems, tractor cab suspension systems and air operated implements such as seed drills.
As will be appreciated, the total length of the conduit 20 connecting the compressor 17 with the storage tank 18 is therefore of considerable length being approximately typically six meters in length. This ensures that heating of the air as it is pumped from the compressor to the storage tank is reduced by dissipation of the heat from the conduit 20 to the ambient air.
As will be appreciated the present invention thus provides the simple but efficient method of cooling the compressed air which utilises an existing tubular stiffening member which surrounds each support member 14, 15 and through which the compressed air passes on its way from the compressor 17 to the storage tank 18. It is this recognition that the existing tubular stiffening members 14b, 15b could be used as part of the conduit to connect the compressor and storage tank which is the essence of the present invention. The invention can also be used for other uses, for example, in systems for supplying coolant to a vehicle engine υr for supplying pressurised hydraulic fluid to a hydraulic valve or hydraulic consumer. In such systems the fluid is again cooled as it passes through the stiffening members 14b, 15b.
In summary, there is provided a fluid supply system on a tractor. The system includes a conduit through which fluid flows such as compressed air or hydraulic fluid. At least part of the conduit is provided by the tubular stiffening member of a planar support member so that the fluid is cooled as it passes through the tubular stiffening member. The invention thus provides a simple but efficient method of cooling fluid by utilising, an often existing, tubular stiffening member which surrounds a planar support member.

Claims

1. A fluid supply system on a tractor, the system including a conduit through which fluid flows and being characterised in that at least part of the conduit is provided by the tubular stiffening member of a planar support member so that the fluid is cooled as it passes through the tubular stiffening member.
2. A supply system according to Claim 1 for supplying pressurised air, the system comprising an air compressor, a tank to receive the pressurised air from the compressor, the conduit connecting the compressor and tank, and a drier to remove moisture from the air as it passes from the compressor to the tank, the air being cooled as it passes through the tubular stiffening member.
3. A supply system according to Claim 1 for supplying coolant to a tractor engine, the coolant being cooled as it passes through the tubular stiffening member.
4. A supply system according to Claim 1 for supplying pressurised hydraulic fluid from a pressure source to a hydraulic control valve or hydraulic consumer, the hydraulic fluid being cooled as it passes through the tubular stiffening member.
5. A supply system according to any preceding claim comprising two of said planar support members which are positioned one on each side of the tractor and the tubular stiffening members are connected in series in the conduit.
6. A supply system according to any preceding claim, wherein the or each planar support member supports a fuel tank and/or a battery.
7. A supply system according to any preceding claim, wherein the tubular stiffening member of the planar support member extends around at least part of the periphery of a support plate.
PCT/EP2009/000119 2008-01-23 2009-01-12 Fluid supply systems WO2009092521A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09703757.6A EP2242934B1 (en) 2008-01-23 2009-01-12 Fluid supply systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0801152.0 2008-01-23
GBGB0801152.0A GB0801152D0 (en) 2008-01-23 2008-01-23 Fluid supply systems

Publications (1)

Publication Number Publication Date
WO2009092521A1 true WO2009092521A1 (en) 2009-07-30

Family

ID=39166168

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/000119 WO2009092521A1 (en) 2008-01-23 2009-01-12 Fluid supply systems

Country Status (3)

Country Link
EP (1) EP2242934B1 (en)
GB (1) GB0801152D0 (en)
WO (1) WO2009092521A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109534027A (en) * 2018-12-29 2019-03-29 中国重汽集团青岛重工有限公司 Large transport airplane loading/unloading platform vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19525541A1 (en) * 1994-07-14 1996-01-18 Scania Cv Ab Cooling circuit for compressed air system on goods vehicles
DE10034480A1 (en) * 2000-07-15 2002-01-24 Man Nutzfahrzeuge Ag Device for cooling the compressed air in a commercial vehicle
DE102004036037A1 (en) * 2004-07-24 2006-03-16 Daimlerchrysler Ag Motor vehicle has air compressor and compressed air line connected to its compressed air outlet; compressed air line runs at least partly in air flow from radiator fan

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19525541A1 (en) * 1994-07-14 1996-01-18 Scania Cv Ab Cooling circuit for compressed air system on goods vehicles
DE10034480A1 (en) * 2000-07-15 2002-01-24 Man Nutzfahrzeuge Ag Device for cooling the compressed air in a commercial vehicle
DE102004036037A1 (en) * 2004-07-24 2006-03-16 Daimlerchrysler Ag Motor vehicle has air compressor and compressed air line connected to its compressed air outlet; compressed air line runs at least partly in air flow from radiator fan

Also Published As

Publication number Publication date
EP2242934B1 (en) 2013-05-29
GB0801152D0 (en) 2008-02-27
EP2242934A1 (en) 2010-10-27

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