AUTOMATED INSTALLATION FOR TESTING FUELS AND OILS UNDER VARIOUS ENGINE OPERATING CONDITIONS Russian patent published in 2021 - IPC G01M15/05 G01N33/30 F28D1/02 

FIELD: fuel and oil industry.

SUBSTANCE: invention relates to methods of testing fuels and oils at engine installations with the use of heat exchangers both on oil supply lines and on coolant lines. The invention can be used in automated quality management systems to assess the quality of fuels and oils that are either new or being modernized for specific engines. The automated installation for testing fuels and oils under various engine operation modes has an engine (1) with a lubrication system (2) and a cooling jacket (3), and a control unit (15). The installation also has a closed-type oil-to-water heat exchanger (19) in the engine lubrication system, an oil temperature sensor (21) and a shut-off valve (23). To create a stable air-fuel mixture of given composition, a module (18) is provided, which is connected to the combustion chamber of the engine through an inlet pipe (26) for supplying air to a single-cylinder engine (1). A damping device (27) is installed in the module (18) and is connected to the air source by an air duct that contains a sensor (28) and an air flow regulator (29). The damping device (27) is a container, the volume of which is equal to 200 working volumes of the cylinder of the engine (1). Two partitions are installed inside the container. They are arranged in a chessboard fashion at a distance equal to the height of a partition. They create a labyrinth that makes it possible to arrest air flow velocity. To damp air pulsation in the container, an elastic rubber diaphragm is provided. The diaphragm is located on the end surface of the damping device (27) which is opposite to the inlet pipe.

EFFECT: invention expands functionality of the installation, at the same time it reduces labor costs as a result of testing various petroleum products (fuel and engine oil), which are affected by the engine operation modes.

1 cl, 1 dwg