Vehicle cooling arrangement

Patent metadata

Field	Value
Publication number	US-9676271-B1
Application number	US-201615349132-A
Country	US
Kind code	B1
Filing date	Nov 11, 2016
Priority date	Jan 14, 2016
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

A tractor has a front bonnet which houses an engine and a cooling arrangement, the cooling arrangement having a fan, a radiator, and a mounting plate. The bonnet has a hood and two opposing side parts. A grill is positioned at the front of the bonnet through which air passes and enters the cooling arrangement. An extended fan shroud has a lower part which extends from the bottom half of a fan ring in a forward direction and an upper part which extends rearwards from the upper half of the fan ring towards the radiator over the mounting plate. A flange extends from the lower part of the fan shroud diagonally along opposing sides of the upper part and across the upper part of the fan shroud. The flange has a sealing member. When the bonnet is closed and in contact with the sealing member, two air compartments are defined.

First claim

The invention claimed is:

1. An agricultural tractor comprising:
a front bonnet which houses an engine and a cooling arrangement, the cooling arrangement comprising a fan, at least one radiator, and a mounting plate, wherein the bonnet comprises a hood and two opposing side parts;
a grill or mesh positioned at the front of the bonnet through which air passes and enters the cooling arrangement; and
an extended fan shroud having a lower part which extends from the bottom half of a fan ring in a forward direction with respect to the forward direction of travel of the tractor and an upper part which extends rearwards from the upper half of the fan ring towards the at least one radiator over the mounting plate, wherein a flange extends from the lower part of the fan shroud diagonally along opposing sides of the upper part of the fan shroud and across the upper part of the fan shroud, wherein the flange is provided with sealing member, and wherein when the bonnet is closed and in contact with the sealing member, two air compartments are defined.

2. The agricultural tractor of claim 1 , wherein when the bonnet is closed the grill is formed in the hood so that it has a generally vertical part and a generally horizontal part, the generally horizontal grill part extending from the generally vertical grill part towards the rear of the vehicle past the fan.

3. The agricultural tractor of claim 1 , wherein when the bonnet is closed and in contact with the sealing member, a first air compartment and a second air compartment are defined, wherein
the first air compartment is partially positioned above the cooling fan, between the grill of the hood and the extended fan shroud, and
the second air compartment is positioned behind the radiator, and is enclosed by the hood, the flange and the bonnet side panels.

4. The agricultural tractor of claim 1 , wherein when the bonnet is closed the first air compartment is a low pressure area and the second air compartment is a high pressure area.

5. The agricultural tractor of claim 1 , wherein the mounting plate provides an air guidance means for guiding air from the fan to the radiator, as well as providing a mounting surface for mounting the fan and a radiator to the vehicle.

6. The agricultural tractor of claim 1 , wherein the extended fan shroud is assembled from a number of parts bolted together.

7. The agricultural tractor of claim 1 , wherein the fan is mounted on mounting plate so that it is tilted towards the radiator.

Assignees

• Agco Int Gmbh

Inventors

• Barzen Alexander
• Opitz Marco
• Jutz Georg

Classifications

• B60K11/08 Primary

  Air inlets for cooling; Shutters or blinds therefor · CPC title

• B60Y2200/221

  Tractors · CPC title