An important component of direct injection (DI) engines is the fuel pump, which helps deliver peak performance and efficiency. Fuel pressure for fuel pumps in DI systems is generally 1,450 to 2,900 psi instead of the usual 30 to 50 psi used in common fuel injection systems. The higher pressure enables better-controlled fuel atomization in the combustion chamber, which promotes optimal combustion and lower emissions.
Direct Injection has seen a sudden rise in demand in the Automotive market growing up to 45% of all new vehicles are now Direct Injection by 2023. Another aspect of this changeover is a growing need for fuel pumps featuring high pressure systems. Bosch, for example, a fuel injection technology pioneer, points out that "the future of automotive performance begins with the most basic of needs -- an uninterrupted supply of reliable fuel.
In the DI engines, another key element for fuel pumps is to be able to deliver fuel quickly. Under hard acceleration scenarios the pump must react within milliseconds and provide plenty of fuel, which explains why it has such a big impact on delivery times when stomping on the gas. Industry reports indicate increased throttle response of up to 20% due in part by a properly functioning fuel pump with an overall better driving feel.
Also, thanks to its connection with the ECU, the fuel pump can adjust throughout operation based on current driving conditions. When combined to the power train like this, the pump can modulate its output based on things like engine load and speed to dial in just the right amount fuel efficiency and performance. The ECU can optimise fuel pressure at any given moment according to what mode the bike is in, such as low throttle cruising on a motorway where it could drop below 2.8 bars and save the pump from wear reducing consumption or high-speed driving where it would instruct to increase pressure holding on the fuel pump and ensuring availability of enough gasoline for power delivery.
Another thing to keep in mind is temperature regulation plays a big role on how your DI engine fuel pump performs. Some pumps have built-in protection which can adapt to the changing temperature and avoid overheating that might easily cause the pump to fail. Based on data produced by the National Institute for Automotive Service Excellence (ASE), as many as 20% of all fuel pump failures may have to do with improper temperature management.
In short, the direct injection engines heavily rely on the fuel pump to have an impeccable supply of automotive wastermoisture and this plays a critical role in improving engine performance. O.E.M fuel pump solutions for DI systems Visit Fuel Pump and discover products specifically engineered to suit modern vehicle needs