An external compression engine system includes an external compression engine utilizing two strokes with the external compression engine configured to operate without a compression stroke within a combustion chamber thereof. At least one source of pressurized intake gas is configured to be placed in selective fluid communication with the combustion chamber of the external compression engine, wherein the at least one source of pressurized intake gas is one of a compressor or a storage tank.

A method of controlling fuel delivery to an engine includes providing a fluid atomizer, a mechanically driven air compressor, a start up air source, and an air valve coupled between the mechanically driven air compressor and the start up air source, charging the start up air source, delivering compressed air from the start up air source to the fluid atomizer, providing an initial air/fluid mixture with the fluid atomizer, and operating the air valve to direct compressed air from the mechanically driven air compressor to the fluid atomizer.

A method of controlling fuel delivery to an engine includes providing a fluid atomizer, a mechanically driven air compressor, a start up air source, and an air valve coupled between the mechanically driven air compressor and the start up air source, charging the start up air source, delivering compressed air from the start up air source to the fluid atomizer, providing an initial air/fluid mixture with the fluid atomizer, and operating the air valve to direct compressed air from the mechanically driven air compressor to the fluid atomizer.

Embodiments disclosed herein relate to internal combustion engines, combustion systems that include such internal combustion engines, and controls for controlling operation of the combustion engine. The internal combustion engine may include one or more mechanisms for injecting fuel, air, fuel-air mixture, or combinations thereof directly into one or more cylinders, and controls may operate or direct operation of such mechanisms.

Embodiments disclosed herein relate to internal combustion engines, combustion systems that include such internal combustion engines, and controls for controlling operation of the combustion engine. The internal combustion engine may include one or more mechanisms for injecting fuel, air, fuel-air mixture, or combinations thereof directly into one or more cylinders, and controls may operate or direct operation of such mechanisms.

An engine system has an internal combustion engine, a turbocharger provided with a compressor and with a turbine; and a supply line, which supplied air to the engine through said compressor; the supply line has a supplementary compression stage, which is distinct from the compressor and is controlled in combination with and adjustment of the turbine, in order to limit the back pressure of the exhaust gases flowing out of the engine; in particular, said compression stage is defined by an ejector.

This compressed air generation system (12) for an automotive vehicle (V) comprises: —a turbocompressor (4) feeding an internal combustion engine (2) of the automotive vehicle (V) with compressed air, —an air compressor (8), —at least one compressed air tank (10) connected to an outlet pipe (82) of the air compressor (8), the air compressor (8) comprising an inlet pipe (80) fed with compressed air from the turbocompressor (4). The compressed air generation system (12) comprises a pressure regulator (14) placed downstream the turbocompressor (4) and upstream the air compressor (8) and which limits the pressure (P8) of the compressed air fed from the turbocompressor (4) to the air compressor (8) to a first threshold (T1).

This compressed air generation system (12) for an automotive vehicle (V) comprises: —a turbocompressor (4) feeding an internal combustion engine (2) of the automotive vehicle (V) with compressed air, —an air compressor (8), —at least one compressed air tank (10) connected to an outlet pipe (82) of the air compressor (8), the air compressor (8) comprising an inlet pipe (80) fed with compressed air from the turbocompressor (4). The compressed air generation system (12) comprises a pressure regulator (14) placed downstream the turbocompressor (4) and upstream the air compressor (8) and which limits the pressure (P8) of the compressed air fed from the turbocompressor (4) to the air compressor (8) to a first threshold (T1).

Methods and systems are provided for controlling airflow of an accumulator of a motorized vehicle. In one example, a method includes storing pressurized gases within the accumulator by flowing intake air from a compressor of an engine of the vehicle to a pressure booster arranged upstream of the accumulator. Pressurized gases stored within the accumulator may be used to drive one or more pneumatic devices.

Methods and systems are provided for controlling airflow of an accumulator of a motorized vehicle. In one example, a method includes storing pressurized gases within the accumulator by flowing intake air from a compressor of an engine of the vehicle to a pressure booster arranged upstream of the accumulator. Pressurized gases stored within the accumulator may be used to drive one or more pneumatic devices.