Quote: |
| To maintain a speed of 50 or 60 km/h, you need very little power, so the pressure on the pistons is not really high. |
Hi Jan,
Regarding TDI, I agree, especially concerning the values on my LDA.
At 50-60, there is still hardly any boost pressure built up, meaning the pressure on the piston corresponds to approximately an SDI.
The engine is designed for approximately 70(? I didn't calculate it) % more torque = pressure on the piston.
Alternatively, as suggested, rotary engines may be able to build up the highest combustion-related pressures at low engine speeds, especially when under heavy throttle.
However, the inertial forces are "almost zero" when considering that they increase quadratically with the speed.
D.h. bei 4000 rpm im UT (engine speed), ist der durch die Drehzahl verursachte Druck auf dem Pleuel und die Zugkraft am Kurbelzapfen 16x höher als bei 1000 rpm, zuzüglich des Gasdrucks.
Is the "near-pure-gas pressure" at 1000 rpm so much worse when under load...?