EP0886049A2 - Dispositif auxiliaire de filtration d'air pour l'appareil de refroidisssement d' un tracteur agricole - Google Patents

Dispositif auxiliaire de filtration d'air pour l'appareil de refroidisssement d' un tracteur agricole Download PDF

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Publication number
EP0886049A2
EP0886049A2 EP97830597A EP97830597A EP0886049A2 EP 0886049 A2 EP0886049 A2 EP 0886049A2 EP 97830597 A EP97830597 A EP 97830597A EP 97830597 A EP97830597 A EP 97830597A EP 0886049 A2 EP0886049 A2 EP 0886049A2
Authority
EP
European Patent Office
Prior art keywords
net
cowling
grate openings
cooling apparatus
tractor
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.)
Ceased
Application number
EP97830597A
Other languages
German (de)
English (en)
Other versions
EP0886049A3 (fr
Inventor
Gerald Hampel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Same Deutz Fahr SpA
Original Assignee
Same Deutz Fahr SpA
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 Same Deutz Fahr SpA filed Critical Same Deutz Fahr SpA
Publication of EP0886049A2 publication Critical patent/EP0886049A2/fr
Publication of EP0886049A3 publication Critical patent/EP0886049A3/fr
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12—Filtering, cooling, or silencing cooling-air

Definitions

  • the present invention is generally related to cooling the engine of an agricultural tractor, and is directed more particularly to filtering the air directed from the outer environment towards the cooling apparatus of the engine.
  • the agricultural tractors are provided at the front with a cowling of the compartment housing the engine and associated cooling apparatus, including radiators for the coolant arranged in correspondence of aerating grate openings provided laterally and/or at the front of the cowling.
  • these grate openings are designed to provide a filtering degree of the air sufficient to ensure, for the major part of field working, a certain amount of autonomy of operating time of the tractor prior to clogging both of the grates and of the radiators, while providing a sufficient air flow for the cooling needs.
  • the traditional grate openings are not adapted under extreme conditions, namely whenever the tractor is operating over particularly dusty lands, to warrant a sufficiently high filtering degree to prevent clogging of the radiators.
  • an excessively high filtering degree by the grate openings of the tractor cowling would penalize the flow of the engine cooling air under normal conditions, i.e. during the major part of the operating time of the tractor.
  • the object of the present invention is to overcome the above drawbacks, and more particularly to reduce the cleaning time of the grate openings and radiators of the tractor, even in case same operates under extreme working conditions, without however penalize the cooling efficiency under normal working conditions.
  • the present invention provides an auxiliary air filtering device for the cooling apparatus of an agricultural tractor engine, essentially characterized in that it comprises a net adapted to be removably applied to the tractor cowling so as to define filtering grids temporarily arranged in series with said aerating grate openings.
  • the auxiliary filtering net can be applied at the interior or, more conveniently, outside of the cowling.
  • the auxiliary filtering net is flexible, and has an enclosing design thus being adapted to be fitted over the cowling so as to cover said aerating grate openings.
  • the invention enables on one hand to reduce the cleaning time of the grates and radiators when the tractor operates under extreme conditions, since in such conditions clogging will firstly affect the auxiliary filtering net, which shall be easily and quickly washed or replaced, thus extending the operating range of the grate openings and of the radiators.
  • the possibility of employing the auxiliary net only under extreme working conditions of the tractor prevents, under normal operating conditions (which constitute the major part of the tractor operating life), penalizing the passage of the engine cooling air with an excessive filtering degree through the aerating grate openings, which can thus be sized with reference to the normal working conditions of the tractor.
  • reference numeral 1 generally designates an agricultural tractor provided at the front with a cowling 2 under which the internal combustion engine of the tractor 1 is housed, together with the associated cooling apparatus.
  • the cooling apparatus conventionally comprises radiators arranged in correspondence of aerating grate openings 3 for refrigeration of the coolant by the outer air.
  • the grates of these aerating openings 3 provide a filtering degree of the outer air which is sufficient to ensure for the major part of the tractor land operation a certain range of working hours before clogging of the radiators, however without penalizing the cooling performance thereof. Consequently, under extreme working conditions, i.e. when the tractor is operating along particularly dusty lands, the grates of the aerating openings 3 would be unable to provide a filtering degree such as to avoid frequent radiator clogging.
  • the invention provides an auxiliary air filtering device which can be easily applied temporarily to the tractor 1 during operation thereof under the above extreme working conditions.
  • the auxiliary filtering device consists of a net 4 which, in the case of the shown example, has a generally enclosing shape complementary to that of the front portion of the cowling 2, thus being adapted to be fitted thereover so as to cover the aerating grate openings 3.
  • the net 4 can be made of any suitable material, with a rigid or more conveniently a flexible construction, and its arrangement shall be variable as a function of the desired added filtering degree.
  • the net 4 may normally have a finer mesh as compared to the aerating grate openings 3, and shall thus provide an appreciably higher filtering degree.
  • the net 4 enables to reduce the cleaning time of the radiators when operating under extreme working conditions and, when the net 4 is clogged by the dust, its cleaning (or possibly replacement thereof with a similar net) can be performed in a quick and easy way following removal thereof.
  • auxiliary filtering net 4 may have a design different from that of the shown example, and may also be fitted at the interior instead of at the outside of the cowling 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP97830597A 1997-06-17 1997-11-14 Dispositif auxiliaire de filtration d'air pour l'appareil de refroidisssement d' un tracteur agricole Ceased EP0886049A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO970121U 1997-06-17
ITTO970121 IT236278Y1 (it) 1997-06-17 1997-06-17 Dispositivo ausiliario di filtraggio dell'aria per l'impianto diraffreddamento del motore dsi una trattrice agricola

Publications (2)

Publication Number Publication Date
EP0886049A2 true EP0886049A2 (fr) 1998-12-23
EP0886049A3 EP0886049A3 (fr) 2000-04-05

Family

ID=11415368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97830597A Ceased EP0886049A3 (fr) 1997-06-17 1997-11-14 Dispositif auxiliaire de filtration d'air pour l'appareil de refroidisssement d' un tracteur agricole

Country Status (2)

Country Link
EP (1) EP0886049A3 (fr)
IT (1) IT236278Y1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0616052A (ja) * 1992-06-17 1994-01-25 Kubota Corp 作業車の防塵網取付け構造
JPH07205666A (ja) * 1994-01-17 1995-08-08 Kubota Corp 農作業車のボンネット

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
ITTO970121U1 (it) 1998-12-17
EP0886049A3 (fr) 2000-04-05
ITTO970121V0 (fr) 1997-06-17
IT236278Y1 (it) 2000-08-08

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