Four Stroke Petrol Engine Variable Compression.
Four Stroke Petrol Engine Variable Compression The air-cooled four-stroke petrol engine has an identical design. It has been modified to allow investigation of different compression ratios (special cylinder head with interchangeable combustion chamber inserts), adjustment of the ignition point and an adjustable spray nozzle. The engine is securely mounted on a base plate with vibration dampers. The plate is fitted in the mounting provided on the test stand and bolted into place. A covered V-belt drive is used to connect it to the brake unit. The engine contains a sensor for measuring the exhaust gas temperature, which is connected to the display and control pane