Description:SINGLE POINT LOW PRESSURE FUEL INJECTION SYSTEM AND A METHOD THEREOF

FIELD OF THE DISCLOSURE
[0001] This invention generally relates to a field of fuel injection systems, in particular relates to a single point low pressure fuel injection system that helps in achieving low pressure fuel injection without need of additional compressor in an engine setup.

BACKGROUND
[0002] Use of compressed natural gas (CNG) and piped natural gas (PNG) as alternative fuels in internal combustion engines has gained traction due to their environmental and economic benefits. However, while CNG is typically stored at high pressures (200-250 bar) in cylinders, PNG is delivered through pipelines at much lower pressures (1.5-1.8 bar). This key difference in delivery pressure requires specific considerations for engine design, particularly in terms of fuel injection systems. PNG is delivered at a significantly lower pressure compared to CNG. CNG, stored at high pressures, is easily injected into the engine’s intake manifold via in , Claims:We Claim:
1. A single point low pressure fuel injection system (100) comprising an air intake unit (102) for directing air flow towards a combustion chamber, the system (100) characterised in that:
a single point injection (SPI) unit (104) positioned downstream to the air intake unit (102), the SPI unit (104) comprises:
plurality of injectors (106) configured to inject fuel at a predefined pressure into the air flow; and
a multi-hole cavity (108) positioned downstream to the plurality of injectors (106), wherein the multi-hole cavity (108) is configured to increase turbulence for mixing the fuel with the air flow and preparing an air-fuel mixture;
a turbocharger compressor (110) coupled downstream to the SPI unit (104), wherein the turbocharger compressor (110) is configured to compress the air-fuel mixture; and
an intake manifold (112) coupled to the turbocharger compressor (110), wherein the intake manifold (112) is configured to distribute the air-fuel mixture compressed by the turbocharger compressor (11