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Cooling apparatus for controlling airflow

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Cooling apparatus for controlling airflow


A cooling apparatus for providing airflow to a cooling core, the cooling apparatus includes a housing, a fan assembly and an air diverter. The fan assembly is mounted to the housing and configured to direct air along a first plane towards a second plane. The first plane is substantially perpendicular to the second plane. Moreover, the air diverter is positioned substantially perpendicular to the second plane and configured to move in angular relation to the first plane.
Related Terms: Air Diverter

Browse recent Caterpillar Inc. patents - Peoria, IL, US
Inventor: Jeffrey David Suckow
USPTO Applicaton #: #20120298327 - Class: 165 111 (USPTO) - 11/29/12 - Class 165 
Heat Exchange > With Alarm, Indicator, Signal, Register, Recorder, Test Or Inspection Means

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The Patent Description & Claims data below is from USPTO Patent Application 20120298327, Cooling apparatus for controlling airflow.

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TECHNICAL FIELD

The disclosure relates to a cooling system, and more particularly, to a cooling apparatus for controlling airflow for cooling one or more cooling cores.

BACKGROUND

A cooling apparatus including a cooling fan is used to provide airflow in a machine. U.S. Pat. No. 7,008,184 discloses a control system for changing the direction of airflow through a cooling core in response to an external signal. A fan control signal, generated by a logic circuit, causes a fan to operate in a cooling mode and generate airflow through the cooling core, or operate in a neutral mode with reduced or no airflow through the cooling core.

SUMMARY

In one aspect, the present disclosure provides a cooling apparatus for controlling airflow to a cooling core. The cooling apparatus includes a housing, a fan assembly and an air diverter. The fan assembly is mounted to the housing and configured to direct air from a first plane towards a second plane. The first plane is substantially perpendicular to the second plane. Further, the air diverter is positioned substantially perpendicular to the second plane and configured to move in angular relation to the first plane.

In another aspect, the present disclosure provides a method for controlling airflow in a cooling apparatus. The method passes air over a cooling core on a first side of the cooling apparatus and also passes air over a cooling core on a second side of the cooling apparatus by a fan assembly. The fan assembly is positioned substantially perpendicular to the first and second sides. The method then receives a real time input from a sensor associated with the cooling cores. The method then computes a target outlet temperature associated with the cooling core. Subsequently, the method generates an output signal to move an air diverter, positioned substantially perpendicular to the fan assembly, for controlling the relative airflow to the cooling cores.

Other features and aspects of this disclosure will be apparent from the following description and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view of a machine;

FIG. 2 shows an exemplary schematic of a power system of the machine shown in FIG. 1;

FIG. 3 is a perspective view of a cooling apparatus for providing airflow to cooling cores;

FIG. 4 is a bottom schematic view of the cooling apparatus shown in FIG. 3; and

FIG. 5 is a block diagram of an airflow controlling sequence.

DETAILED DESCRIPTION

FIG. 1 shows a side view of a machine 1, according to an aspect of this disclosure. The machine 1 may embody a wheel tractor scraper, as shown in FIG. 1. However, the machine 1 may be any type, such as, but not limited to, an off-highway truck, an on-highway truck, an articulated truck, a wheel tractor, a track type tractor, a wheel loader, a compactor, an excavator, a dozer, a motor grader, or any other machines having an engine or requiring cooling. The machine 1 includes a power system 10 and a cooling apparatus 100.

The machine 1 may further include a tractor portion 2, and a scarper portion 3 that are pivotally coupled. The power system 10 may be disposed in the tractor portion 2. The cooling apparatus 100 may be a box style cooling package located on the side of the machine 1. In other embodiments or in other machines the cooling apparatus 100 may have a different structure or located in a different position on the machine 1. For example, the cooling apparatus 100 may also be in the front, back, top, or underneath the machine 1.

FIG. 2 shows an exemplary schematic of the power system 10, according to an aspect of this disclosure. The power system 10 may include an engine 12, a hydraulic drive system 14, and a brake system 16. The engine 12 may be a diesel engine, a gasoline engine, a gaseous fuel powered engine such as a natural gas engine, or any other type of engine known in the art. Further, an air to air aftercooler (ATAAC) 18, an oil cooler 20, and a radiator 22 may be associated with the power system 10. Moreover, the ATAAC 18, the oil cooler 20 and the radiator 22 may be fluidly connected to the brake system 16, the hydraulic drive system 14, and the engine 12, respectively. The ATAAC 18, the oil cooler 20, and the radiator 22 may be provided with an air intake pipeline 24, an oil intake pipeline 26, and a coolant intake pipeline 28, respectively.

The ATAAC 18, the oil cooler 20, and the radiator 22 may be positioned within the cooling apparatus 100. The cooling apparatus 100 may include a fan assembly 102 which may be drivably connected to the hydraulic drive system 14. The fan assembly 102 may be configured to direct air from a first plane P1 towards a second plane P2 which is substantially perpendicular to the first plane P1; substantially perpendicular may be within plus or minus approximately 30 degrees from normal or perfectly perpendicular. As a result, the airflow generated by the fan assembly 102 may be directed from the first plane P1, passing over the ATAAC 18, the oil cooler 20, and the radiator 22, towards the second plane P2.

In an embodiment, the cooling apparatus 100 may further include an air diverter 104, and a motor 106. In an embodiment, the motor 106 may include an alternating current (AC) motor or a direct current (DC) motor or any another type of motor. The air diverter 104 may be disposed or positioned substantially perpendicular to the second plane P2. The air diverter 104 may be coupled to the motor 106 to move in angular relation to the first plane P1. The air diverter 104 may move substantially towards and away from the ATAAC 18, the oil cooler 20, and the radiator 22 to distribute an airflow generated by the fan assembly 102.

The air intake pipeline 24 may be provided with an air temperature sensor 30 for detecting a real time temperature of the intake air. The oil intake pipeline 26 may be provided with an oil temperature sensor 32 for detecting a real time temperature of the hydraulic oil. The coolant intake pipeline 28 may also provided with a coolant temperature sensor 34 for detecting a real time temperature of the coolant (i.e. cooling water). In an embodiment, the temperature sensors 30, 32, and 34 may include thermocouple or resistance temperature detectors (RTD) which are well known in art. Moreover, other techniques known in the art may be utilized to detect or estimate the real time temperature parameters associated with the ATAAC 18, the oil cooler 20, and the radiator 22 without deviating from the scope of the disclosure.

The temperature sensors 30, 32, and 34 may be connected to a control system 108 through the respective input signal lines 36, 38, and 40. The control system 108 may be associated with the cooling apparatus 100 and also configured receive one or more real time signals corresponding to an engine load factor and an engine retarder status (On/Off) from an engine control module (ECM) 42 associated with the engine 12. A person of ordinary skill in the art will appreciate that the one or more real time inputs may be obtained using engine sensing devices, temperature sensors, and other techniques known in the art. In an embodiment, the control system 108 may be incorporated in the ECM 42.



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stats Patent Info
Application #
US 20120298327 A1
Publish Date
11/29/2012
Document #
13115426
File Date
05/25/2011
USPTO Class
165 111
Other USPTO Classes
165 96
International Class
/
Drawings
6


Air Diverter


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