US 6,439,296 B1 · Heating or air-conditioning system for a vehicle occupant compartment

Abstract

A heating or air-conditioning system for a vehicle occupant compartment has an air distributor with a warm-air outlet which is connected with an air duct leading to a center plane the vehicle occupant compartment. A cold-air bypass controlled by a cold-air flap is provided for lowering the temperature of the warm air flowing out of the warm air outlet to the air duct. In the cold-air bypass, which has a relatively small cross-section, a throttling element is coupled with the cold-air flap such that the cold-air flap partially, to a defined extent, covers the warm-air outlet in the open position of the cold-air flap, thus maximally opening up the cold-air bypass. In addition, in this arrangement the throttling element completely opens up the warm-air outlet in the closed position of the cold-air flap, thus completely blocking the cold-air bypass.

Claims24

Dependent claims

A heating or air-conditioning system for a vehicle occupant compartment, having an air distributor with a warm-air outlet which is connected with an air duct leading to air outlet devices arranged in a center plane of the vehicle occupant compartment, and having a cold-air bypass controlled by a cold-air flap, for lowering the temperature of warm air flowing out of the warm air outlet to the air duct,

wherein a throttling element is coupled with the cold-air flap such that in one end position the throttling element partially covers the warm-air outlet to a defined extent while the cold-air flap is in a maximally open position which opens the cold-air bypass, and such that in a second end position the throttling element completely opens the warm air outlet while the cold-air flap is in a completely closed position which blocks the cold-air bypass, wherein the throttling element moves continuously between these two end positions in response to swiveling of the cold-air flap.

A heating or air conditioning system for a vehicle occupant compartment comprising:

a heat exchanger interposed between a cold air space and a warm air distributor space,
a cold air bypass extending in bypassing relation to the heat exchanger between the cold air space and an outlet end of the warm air distributor space,
an air duct disposed downstream of the warm air distributor space and leading to air outlet devices disposed in a center plane of a vehicle occupant compartment center plane,
a cold-air flap operable to control flow through the cold air bypass to thereby control the temperature of air flowing into the air duct, and a throttling element coupled with the cold-air flap and operable to move between a first end position partially blocking a warm air flow from the warm air distributor space to the air duct when the cold-air flap is in a maximally open position, and a second end position opening up the warm air flow from the warm air distributor space to the air duct when the cold-air flap is in a maximally closed position blocking flow through the bypass, said throttling element being continuously movable in conjunction with the cold-air flap between said first and second end positions.

1 more element

Dependencies are inferred from the claim text.

Heating or air-conditioning system for a vehicle occupant compartment

Life of this patent

Heating or air-conditioning system for a vehicle occupant compartment

Life of this patent

Abstract

Claims24