A vehicular air conditioning system includes: a heat pump side refrigerant circulation line including a compressor, a water-cooled heat exchanger, a heat pump mode expansion valve, an air-cooled heat exchanger, an air conditioner mode expansion valve and an evaporator, the heat pump side refrigerant circulation line configured to generate cold energy in the evaporator in an air conditioner mode and to generate heat in the water-cooled heat exchanger in a heat pump mode, the air-cooled heat exchanger configured to allow a refrigerant to exchange heat with an ambient air in the air conditioner mode and the heat pump mode; and a heat exchange air switching part configured to switch the type of the air heat-exchanged in the air-cooled heat exchanger depending on the air conditioner mode or the heat pump mode.

An air heating apparatus may be mounted on a common base and define a pair of air flow paths. The air heating apparatus may include a housing forming an outer envelope through which the air flow paths extend, with the air flow path being separate from each other at all locations in the interior of the outer envelope. The interior of the housing may be divided into two subhousings defining two separate subchambers. The housing may have inlet and outlet openings extending through the outer envelope for each of the air flow paths of the subchambers. At least two air heating assemblies may each be configured to heat air moving along a separate one of the air flow paths, the air heating assemblies being positioned in the interior of the housing with each of the air heating assemblies being positioned in a respective one of the subchambers of the subhousings.

An air heating apparatus may be mounted on a common base and define a pair of air flow paths. The air heating apparatus may include a housing forming an outer envelope through which the air flow paths extend, with the air flow path being separate from each other at all locations in the interior of the outer envelope. The interior of the housing may be divided into two subhousings defining two separate subchambers. The housing may have inlet and outlet openings extending through the outer envelope for each of the air flow paths of the subchambers. At least two air heating assemblies may each be configured to heat air moving along a separate one of the air flow paths, the air heating assemblies being positioned in the interior of the housing with each of the air heating assemblies being positioned in a respective one of the subchambers of the subhousings.

An air heating apparatus may be mounted on a common base and define a pair of air flow paths. The air heating apparatus may include a housing forming an outer envelope through which the air flow paths extend, with the air flow path being separate from each other at all locations in the interior of the outer envelope. The interior of the housing may be divided into two subhousings defining two separate subchambers. The housing may have inlet and outlet openings extending through the outer envelope for each of the air flow paths of the subchambers. At least two air heating assemblies may each be configured to heat air moving along a separate one of the air flow paths, the air heating assemblies being positioned in the interior of the housing with each of the air heating assemblies being positioned in a respective one of the subchambers of the subhousings.

The invention relates to an auxiliary engine system (AES) for heating an electric car comprising a heating system and a rechargeable power source powering an electric motor. The AES comprises an internal combustion engine (ICE) producing heat to heat the electric car. The AES can heat people transported in the electric car and/or the rechargeable power source. The ICE can be coupled with an electric energy generator. The ICE can be air and/or liquid cooled which systems can heat the electric car. The ICE can be fueled by defined types of fuel. The ICE can be a two-stroke engine, a four-stroke engine, a turbine. The rechargeable power source can be coupled with a defined electrocomponent. The AES can be provided in a modular system. A heating method for an electric car is proposed.

An air flow control system includes a forming portion, an outside air introduction door, and an air controller. The forming portion forms a front side communication port that communicates between the interior of the vehicle cabin and an engine compartment disposed on the front side in a vehicle traveling direction with respect to the interior of the vehicle cabin and accommodating a traveling engine. The outside air introduction door opens or closes an outside air introduction port to introduce an air flow from an outside of a vehicle cabin into the interior of the vehicle cabin. The air controller controls the outside air introduction door to open the outside air introduction port, and causes the air flow, introduced from the outside of the vehicle cabin into the interior of the vehicle cabin via the outside air introduction port with travel of the vehicle, to be blown from the interior of the vehicle cabin into the engine compartment through the front side communication port.

An airflow control system includes an air blower and an outlet door. The air blower is disposed on a front side in a vehicle traveling direction with respect to an inside of a cabin and disposed inside an engine compartment that houses a propulsion engine. The outlet door opens and closes an air outlet through which an air flow from an inside of the engine compartment is blown to another area on a rear side in the vehicle traveling direction with respect to the engine compartment. The air blower blows an air flow containing exhaust heat of the propulsion engine to the other area through the air outlet while the air outlet is opened by the outlet door.

An airflow control system includes an air blower and an outlet door. The air blower is disposed on a front side in a vehicle traveling direction with respect to an inside of a cabin and disposed inside an engine compartment that houses a propulsion engine. The outlet door opens and closes an air outlet through which an air flow from an inside of the engine compartment is blown to another area on a rear side in the vehicle traveling direction with respect to the engine compartment. The air blower blows an air flow containing exhaust heat of the propulsion engine to the other area through the air outlet while the air outlet is opened by the outlet door.

An air flow control system includes a forming portion, an outside air introduction door, and an air controller. The forming portion forms a front side communication port that communicates between the interior of the vehicle cabin and an engine compartment disposed on the front side in a vehicle traveling direction with respect to the interior of the vehicle cabin and accommodating a traveling engine. The outside air introduction door opens or closes an outside air introduction port to introduce an air flow from an outside of a vehicle cabin into the interior of the vehicle cabin. The air controller controls the outside air introduction door to open the outside air introduction port, and causes the air flow, introduced from the outside of the vehicle cabin into the interior of the vehicle cabin via the outside air introduction port with travel of the vehicle, to be blown from the interior of the vehicle cabin into the engine compartment through the front side communication port.

A vehicular air conditioning system includes: a heat pump side refrigerant circulation line including a compressor, a water-cooled heat exchanger, a heat pump mode expansion valve, an air-cooled heat exchanger, an air conditioner mode expansion valve and an evaporator, the heat pump side refrigerant circulation line configured to generate cold energy in the evaporator in an air conditioner mode and to generate heat in the water-cooled heat exchanger in a heat pump mode, the air-cooled heat exchanger configured to allow a refrigerant to exchange heat with an ambient air in the air conditioner mode and the heat pump mode; and a heat exchange air switching part configured to switch the type of the air heat-exchanged in the air-cooled heat exchanger depending on the air conditioner mode or the heat pump mode.