Abstract: The invention relates to a method and apparatus for controlling the braking action of a diesel engine having several cylinders. Hereby valves of the cylinders are opened and closed for supplying compressed air and/or venting the cylinder during a certain moment of the compression stroke. This is accomplished by a transmitter which produces an electric pulse that is transformed into an electro-magnetic force, which controls a valve of a pressurized pilot air system for opening the valve of the particular cylinder.

Abstract: This invention relates to a compressed air starter including pneumatically operating starting valves for diesel engines, wherein one main starting valve is connected to the cylinder head of the engine and is provided with a valve body, which co-operates with a valve seat in order to alternately open and close an inlet opening for compressed air to one cylinder, whereby during the start up of the engine, starting air (compressed air) continuously is supplied to the main starting valve, said valve body including one servo piston, which is controlled by servo air from a supply of servo air, which servo air acts on the servo piston during moments related to the working phase of the engine.The invention simplifies the pipe arrangement for the compressed air in a diesel engine with several cylinders where there is usually arranged a main distributor for distributing the servo or pilot air, which controls the starting valves.