Cooling system for a water cooled internal combustion engine for vehicle having an air conditioning apparatus
AssigneeNippondenso Co., Ltd.
InventorsSumio Susa, Kazutaka Suzuki, Toshio Morikawa, Tatsuo Sugimoto, Atsushi Katoh
Life of this patent
Estimating the term…
Abstract
A vehicle provided with an internal combustion engine and an air conditioning system for a vehicle passenger cabin. A condenser of the air conditioning system is arranged in front of a radiator of the engine in an engine compartment of the engine. A duct is arranged between the condenser and the radiator for preventing the air passing the radiator from being returned forward P. A first damper, which is normally closed is provided in the duct, but is opened when the engine temperature is high to provide a flow of air, by-passing the condenser, directly into the radiator.
Claims12
In an arrangement of a vehicle with an internal combustion engine having an engine body and a radiator located at the front of the engine in the direction of the forward movement of the vehicle and an airconditioning system having a condenser arranged in front of the radiator, the improvement comprising:
- means for allowing a flow of air to be generated when the vehicle moves forward;
- guide wall means for defining a first passageway for receiving said flow generated and for obtaining a first flow of air from the condenser to the radiator, said guide wall means preventing the air, after passing through the radiator, from being returned back around the radiator into the flow from the condenser to the radiator;
- means for defining at least one second passageway for receiving said flow generated and for obtaining an air flow by-passing the condenser and for directly introducing the by-passed air flow into the radiator, and;
- means, responding to thermal load conditions of the engine, for selectively opening or closing said second passageway.
In an arrangement of a vehicle with an internal combustion engine having an engine body and radiator located in front of the engine in the direction of the forward movement of the vehicle, and an air-conditioning system having a condenser arranged in front of the radiator, the improvement comprising:
- means for allowing a flow of air to be generated when the vehicle moves forward;
- guide wall means for defining a first passageway for receiving said flow as generated and for obtaining a first flow of air from the condenser to the radiator, said guide wall means preventing the air after passing through the radiator from being returned back around the radiator into the flow from the condenser to the radiator;
- change over means moved between a first condition where the change over means forms a part of the guide wall means so that the air from the condenser is introduced into the radiator at its entire area, and a second condition where at least one second passageway is formed for receiving said flow as generated and for obtaining an air flow bypassing the condenser and for directly introducing the by-passed air flow into the radiator at its part, and;
- means, responding to thermal load conditions of the engine, for selectively opening or closing said change over means.
In an arrangement of a vehicle with an internal combustion engine having an engine body and a radiator located at the front of the engine in the direction of the forward movement of the vehicle, and an airconditioning system having a condenser arranged in front of the radiator, the improvement comprising:
- means for allowing a flow of air to be generated when the vehicle moves forward;
- guide wall means for defining a first passageway for receiving said flow as generated and for obtaining a first flow of air from the condenser to the radiator, said guide wall means preventing the air passing through the radiator from being returned back around the radiator into the flow from the condenser to the radiator;
- change over means moved between a first condition where the change over means forms a part of the guide wall means so that the air from the condenser is introduced into the radiator at its entire area, and a second condition where the guide wall means forms at least one opening;
- means, responding to thermal load conditions of the engine, for selectively opening or closing said change over means, and;
- means arranged between the condenser and the radiator for forming at least one second passageway for receiving said flow as generated and for obtaining an air flow by-passing the condenser and for directly introducing the by-passed air flow into the radiator when said change over means is at its second condition.
Dependencies are inferred from the claim text.