How does a GM Sidi high pressure fuel pump work?
How does a GM Sidi high pressure fuel pump work?
The GM SIDI high-pressure fuel pump has a FRP actuator, which controls how much fuel is allowed into the pump on the low side. Figure 2a shows a cut away of the GM SIDI high-pressure fuel pump. This cut away shows how the single piston design pump takes the low incoming fuel pressure and pressurizes it to around 2900 psi.
What should the catalytic converter pressure be at idle?
Typically, an engine at idle should have 1.5 PSI at most. Of course, some engines can go way higher, but the rule of thumb is to have 1.5 PSI and below. Less than 1 psi is optimum. When you rev the vehicle at 2,000 RPM and it remains steady at or below 3 PSI, then you likely don’t have issues in your catalytic converter.
Why does gas direct GDI use high pressure?
GDI uses high pressure to deliver fuel at any point on the compression stroke. This allows the fuel to be considered a stratified fuel charge which means fuel/air mix is rich around the spark plug only and the remaining mixture in the cylinder is very lean. This allows for aggressive timing curves and better fuel economy.
What’s the pressure on a GDI fuel pump?
GDI equipped vehicles use a standard. fuel pump and fuel tank to deliver the fuel to the high pressure pump. Fuel pressure on the low side ranges from 50 to 60 psi. The high pressure pump, which is camshaft driven, produces the pressures needed to overcome the high compression pressures.
What kind of engine does a caterpillar g3500 use?
Ideal applications for G3500 engines include gas lift, gas gathering, and wellhead gas compression. Cat G3516 gas engine. Ratings: 492-1000 bkW (660-1340 bhp) @ 1200-1400 rpm are NSPS site compliant capable with customer-provided air-fuel ratio control and aftertreatment. Lean-burn engines operate with large amounts of excess air.
What can a g3500 gas compression engine be used for?
They are equipped with ADEM A3 technology that enables highest performance and safety while maintaining low emissions. Ideal applications for G3500 engines include gas lift, gas gathering, and wellhead gas compression.
The GM SIDI high-pressure fuel pump has a FRP actuator, which controls how much fuel is allowed into the pump on the low side. Figure 2a shows a cut away of the GM SIDI high-pressure fuel pump. This cut away shows how the single piston design pump takes the low incoming fuel pressure and pressurizes it to around 2900 psi.
What’s the gas pressure on a GDI pump?
GDI equipped vehicles use a standard fuel pump and fuel tank to deliver the fuel to the high pressure pump. Fuel pressure on the low side ranges from 50 to 60 psi. The high pressure pump, which is camshaft driven, produces the pressures needed to overcome the high compression pressures.
