Trapezoidal piston and connecting rod. 1.9 TDI PD from VAG Group. Family of diesel engines with injection pump-injector
AvtoAd
10/05/2022AvtoAd
10/05/2022
The piston hub and connecting rod lug have a trapezoidal shape. This ensures high combustion pressure in the 1.9-liter engine.
Compared to a conventional link in the form of a parallelogram between the piston and the connecting rod, the trapezoidal lug of the connecting rod and the piston hub have a larger contact surface area on the piston pin due to its shape.
The combustion process takes place over a larger area, and this relieves the load on the piston pin and connecting rod.
Read more about the family of diesel engines with injection pump-injector here .