An internal combustion engine oil utilization system, comprising one or more oil pumps to receive and discharge engine oil including an engine oil circulation loop comprising a first flow path and a second flow path. The first flow path receives at least a portion of the oil discharged from the one or more oil pumps and utilizes the oil to lubricate the engine during running operation of the engine. The second flow path receives at least a portion of the oil discharged from the one or more oil pumps and accumulates the oil to start the engine and/or to lubricate the engine during at least one of a pre-starting operation and a starting operation of the engine.

An internal combustion engine oil utilization system, comprising one or more oil pumps to receive and discharge engine oil including an engine oil circulation loop comprising a first flow path and a second flow path. The first flow path receives at least a portion of the oil discharged from the one or more oil pumps and utilizes the oil to lubricate the engine during running operation of the engine. The second flow path receives at least a portion of the oil discharged from the one or more oil pumps and accumulates the oil to start the engine and/or to lubricate the engine during at least one of a pre-starting operation and a starting operation of the engine.

An internal combustion engine, a method of operating the internal combustion engine, and a controller are disclosed. The method may comprise measuring a first pressure at a first position in a fluid line containing pressurized fluid; comparing the first pressure to a first threshold; in response to the first pressure exceeding the first threshold, transmitting a signal to depressurize the fluid line; after transmitting the signal to depressurize the fluid line, measuring a second pressure in the fluid line and comparing the second pressure to at least one of a second threshold and a third threshold, the second threshold being greater than the third threshold and less than the first threshold; and in response to the second pressure being less than the second threshold and exceeding the third threshold, transmitting another signal to depressurize the fluid line.

The invention relates to a method for starting operation of an internal combustion engine, wherein the method comprises the steps of: when the internal combustion engine is not operating, providing pressurized gas in the air intake duct; opening the intake valve in a first cylinder while keeping the exhaust valve of the first cylinder closed so as to allow the pressurized gas to enter the first cylinder, press onto the corresponding piston and thereby move the corresponding piston and rotate the crank shaft; supplying fuel to at least one of the cylinders where the corresponding piston has performed or is performing a compression step so as to ignite the fuel and start operation of the engine.

The invention relates to a method for starting operation of an internal combustion engine, wherein the method comprises the steps of: when the internal combustion engine is not operating, providing pressurized gas in the air intake duct; opening the intake valve in a first cylinder while keeping the exhaust valve of the first cylinder closed so as to allow the pressurized gas to enter the first cylinder, press onto the corresponding piston and thereby move the corresponding piston and rotate the crank shaft; supplying fuel to at least one of the cylinders where the corresponding piston has performed or is performing a compression step so as to ignite the fuel and start operation of the engine.

Described herein is an air feed system for an internal combustion engine. The air feed system includes a charge air receiver for receiving charge air and a starting air system. The starting air system is designed to feed starting air, in particular from a starting air feed, to the cylinder of the internal combustion engine intermittently during a starting process of the internal combustion engine. The charge air receiver is connected to the starting air system via a charge air shut-off valve in order to feed charge air from the charge air receiver to the starting air system during partial-load operation of the internal combustion engine, such that the starting air system feeds charge air to the cylinder intermittently during partial-load operation of the internal combustion engine. Also described herein are an internal combustion engine and a method for operating an internal combustion engine.

A delay circuit for providing natural gas to an engine and systems, components, and methods thereof can comprise a first valve to selectively pass the natural gas from a starter motor configured to start the engine; a delay volume to receive the natural gas from the first valve; and a second valve to selectively pass the natural gas from the delay volume to an inlet of the engine. The natural gas is provided to the inlet of the engine via the delay system according to a predetermined delay by controlling the first valve and the second valve to selectively pass the natural gas to the inlet of the engine according to the predetermined delay.

A delay circuit for providing natural gas to an engine and systems, components, and methods thereof can comprise a first valve to selectively pass the natural gas from a starter motor configured to start the engine; a delay volume to receive the natural gas from the first valve; and a second valve to selectively pass the natural gas from the delay volume to an inlet of the engine. The natural gas is provided to the inlet of the engine via the delay system according to a predetermined delay by controlling the first valve and the second valve to selectively pass the natural gas to the inlet of the engine according to the predetermined delay.

A method and system of power generating is provided to reduce a startup time of a genset for providing requested power to a utility grid or a load. The genset includes a generator, a turbocharger, and an energy storage. The generator includes an engine. The genset responds to a genset start signal by accelerating an engine speed of the generator to reach a synchronous speed. The engine speed is accelerated more rapidly by activating the energy storage device to supply power to at least one of the generator and the turbocharger. The generator then supplies power to the utility grid or load.

A method and system of power generating is provided to reduce a startup time of a genset for providing requested power to a utility grid or a load. The genset includes a generator, a turbocharger, and an energy storage. The generator includes an engine. The genset responds to a genset start signal by accelerating an engine speed of the generator to reach a synchronous speed. The engine speed is accelerated more rapidly by activating the energy storage device to supply power to at least one of the generator and the turbocharger. The generator then supplies power to the utility grid or load.