A spring operated mechanical exhaust gas recirculation valve is disclosed. The valve is completely mechanically operated using a spring and a piston. The pressure in the exhaust manifold pushes the piston against the spring causing the groove in the piston to coincide with the aperture in the exhaust gas recirculati...

A torsion spring operated mechanical valve lash adjuster is disclosed. Torsion springs store mechanical energy when twisted thereby exerting a force (torque) in the opposite direction; proportional to the angle it is twisted. This ability of torsion spring to provide a torque is utilized to maintain the valve lash c...

The present invention relates to a two cylinder multi stroke automotive direct injection diesel engine assembly. The assembly comprising a housing, water pump means (2) comprising a centrifugal impeller, and spline shaft means (6); vacuum pump means (1) comprising plurality of segments; crankshaft means (3), and bal...

A cooling system for controlling the temperature of an engine, said cooling system comprising a radiator (7) mounted on the top of the engine crankcase (1), a coolant sump (13), a coolant sump plate (3), a gear driven water pump (2) adapted to circulate coolant from the coolant sump (13) through the engine cylinder ...