DE102008023560A1 - Gaseous cooling medium i.e. air, volume flow regulating system for cooling drive motor of vehicle, has rotatably mountable lamellas permitting inflow of cooling medium in open position for operating cooling air management - Google Patents

Abstract

The system has rotatably mountable lamellas (1) prevents inflow of gaseous cooling medium in a closed position, where synchronized rotational movement of the lamellas are triggered by a drive. The lamellas permit inflow of the cooling medium in an open position for operating a cooling air management. The lamellas are connected with each other by a coupling rod, and are rotatable approximately around 90 degrees. The lamellas are water-proof in the closed position. A drive axis (3) is provided at a distance to a rotational axis (2) on each lamella.

Description

The The present invention relates to a system for regulating the volume flow a gaseous one cooling medium in vehicles.

Out The prior art vehicles are known in their front area a cooler through which the gaseous cooling medium Air, favored by the wind flows and preferably over a water-filled Cooler unit passed is to the coolant therein, preferably water, to cool. If, for example, the drive motor of a vehicle is started, so is the at that time still "cold" drive motor on the cooling system unnecessarily cooled. Since no cooling is necessary at this time, the for the Drive motor necessary heating time due to the cooling by the cooling system extended. An extension However, the heating of the drive motor has the adverse effect of the higher one pollutant emissions result.

task Therefore, it is an influence of the present invention of the cooling air management to shorten the heating phase of the drive motor to a reduction pollutant emissions to effect.

These The object is achieved by the system according to the invention with the features according to claim 1 solved.

advantageous Further development of the system according to the invention are in the subclaims 2 to 7 marked.

at the system according to the invention for regulating the volume flow of a gaseous cooling medium in vehicles a plurality of rotatably mounted slats provided, wherein causes the rotation of the slats on a transmission is and the slats are designed so that these in the closed State the oncoming of the gaseous cooling medium essentially prevent and in the open state, the inflow of the gaseous Substantially not hinder medium to operate a cooling air management.

advantageously, are at least two separately controllable lamella groups with their own gearboxes intended. The gearbox advantageously as a rod gear are formed and the individual rotatable blades over a connecting linkage are connected together so that a synchronized rotational movement all connected to the gear slats takes place.

advantageously, is activated by the operation of Slats the volume flow of the gaseous cooling medium to different Aggregates controllable, so that also for different aggregates different cooling management arrangements can be taken.

advantageously, the lamellae are rotatable by 90 ° trained to be in the open Condition one possible small cross-section reduction of the air inlet area to effect.

at the system according to the invention for regulating the volume flow of a gaseous cooling medium in vehicles by the rotation of the rotatably mounted blades, the cross-sectional area of Air intake area is reduced or completely closed to either the volume flow of the gaseous cooling medium To reduce or completely interrupt air. Will the Volumetric flow of gaseous Cooling medium air at the beginning of the warm-up hare of the drive motor interrupted, there is no cooling of the at the beginning of the warm-up hare anyway still "cold" drive motor instead, but it is about the system according to the invention built up a controlled heat accumulation, the warm-up hare significantly shortens the drive motor and thus the output of pollutants, such as carbon dioxide reduced.

During the warm-up is using the system of the invention the gaseous cooling medium Air prevented from the cooling unit flow past, allowing a cooling is omitted and builds up the controlled heat accumulation.

To Termination of the warm-up hare the lamellae of the system according to the invention on the Gearbox turned back to a position that allows optimal cooling.

at a preferred embodiment in the present invention, the fins are separated into two controllable slat groups divided and each with its own Driven driven. This will help with a variety of aggregates an even finer voting possibility and thus an even more precise one Cooling air management allows.

The Transmission of the system according to the invention is preferably over approached an electric motor, wherein to avoid an undesirable hot spots while the desired cooling phases security measures are provided, which prevent a volume flow reduction.

In a preferred embodiment of the present invention, the slats are formed so that they in the closed state in we are considerably waterproof.

at another embodiment According to the present invention, the fins are formed so that these in the closed state with protection against objects offer high airspeed. Such protection can, for example be desired in the armor of the vehicle.

following we a preferred embodiment of the present invention with reference to figures explained in more detail. Show it:

1 : A perspective schematic view of the present invention;

2 a schematic plan view of the system according to the invention in the open and closed state;

3 : a schematic sectional view through a lamella group.

1 shows a schematic representation of three blades 1 in the open state. Each lamella 1 has an axis of rotation 2 on, which projects beyond the head and foot and is housed in a warehouse, not shown. Spaced to each axis of rotation 2 is on each lamella 1 a drive axle 3 arranged over which the rotational movement of the lamella 1 is initiated. Appropriately, all drive axles 3 a lamella group via coupling 6 connected with each other. The paddocks 6 open (shown only schematically) via a mechanical connection to the electric motor 5 ,

2 shows the erfindungemäße system in the closed and opened state. When closed, the slats hit 1 to each other and prevent air from flowing through for cooling. In the illustrated embodiment, two fin groups are defined by a fixed fin 10 separated from each other. When opened, the fins are 1 rotated by 90 ° and allow a large amount of air to flow through unhindered.

3 shows a schematic plan view of a fin group. The individual slats are through the coupling guide 7 , covered. Conveniently, the coupling guide 7 formed substantially straight; However, it is also possible, the coupling guide 7 do not form a straight line, for example with a curvature to adapt the course of an outer contour of the body of the vehicle.

1

lamella

2

axis of rotation the slat

3

drive axle the slat

4

drive coupling

5

electric motor

6

Koppel long

7

coupling guide

8th

cover

9

plate housing

10

fixed lamella

Claims (7)

System for regulating the volume flow of a gaseous cooling medium in vehicles, consisting of a plurality of rotatably mounted lamellae, wherein the rotational movement of the slats is caused by a gear and the fins are formed so that these in the closed state the influx of the gaseous cooling medium essentially prevent and in the open state, the inflow of the gaseous cooling medium do not substantially hinder to operate a cooling air management. System for regulating the volume flow of a gaseous cooling medium in vehicles according to claim 1, characterized in that at least two separately controllable lamella groups with their own gearboxes are provided. System for regulating the volume flow of a gaseous cooling medium in vehicles according to claim 1 or 2, characterized in that at least the slats over One gearbox Two separately controllable lamella groups with their own gearboxes are provided. System for regulating the volume flow of a gaseous cooling medium in vehicles according to claim 1 or 2, characterized in that the slats over a coupling linkage with each other are connected. System for regulating the volume flow of a gaseous cooling medium in vehicles according to claim 3, characterized in that a synchronized rotational movement of all connected to the gearbox Slats takes place. System for regulating the volume flow of a gaseous cooling medium in vehicles according to one of claims 1 to 5, characterized in that that the Slats rotatable by approx. 90 ° are formed. System for regulating the volume flow of a gaseous cooling medium in vehicles according to one of claims 1 to 6, characterized in that the lamellae in the closed state are substantially waterproof.