Goodger, E. M.
Description:
The injection of water into a spark-ignition piston engine tends
to reduce both the power and the tendency to knock. Because of the
latter effect the conditions of operation can be made more severe in order to realise overall gains in power and economy.
Injection of water at different points in a single-cylinder
engine shows the most practicable method to be fine atomization into
the inlet manifold
Water flow requirements are found to be directly
proportional to the manifold absolute pressure, and a commercial
type of water injection unit designed on this basis is described and
road-tested.
An attempt has been made to estimate the distribution of water
to individual cylinders of a multi-cylinder engine, and the effect
of water up on engine components is examined.