Uses Of A Thermodynamic Engine In A Petrol Engine

830 Words2 Pages

A throttle is a device used in IC engine to control Engine’s speed and power output. In a Petrol Engine, It is done by restricting the amount of air flowing to the engine and thereby adjusting fuel and ignition parameters. In a diesel engine, older engines used throttle pedal connected directly to a fuel metering valve which directly limited the amount of fuel being pumped. However diesel engine works on diesel thermodynamic cycle so they have capacity to go faster and faster until they blow up. Modern diesel engines housing turbochargers can pump in air at boost pressures of up to 6-8 psi which need to be controlled, so they use a downstream throttle controlling the amount and pressure of air entering into the cylinder. Alto 800 uses a simple Cable operated throttle body with integrated sensors whereas Alto K10 uses a …show more content…

TPS (Throttle Position Sensor): TPS is basically nothing but a mere high grade, rugged and solidly build Potentiometer. It feeds back the amount of throttle opened up to ECU, so that it can adjust the fuel and ignition parameters. It is directly connected through the spools which rotates the butterfly valve. TPS normally remains rugged throughout its service life. However it needs to be checked and ensured for proper working each time throttle is cleaned. It’s a child’s play to ensure proper working of TPS. 2. MAP (Manifold Absolute Pressure Sensor): As the name suggests, it senses pressure in the throttle body just before the air enters into the plenum and expands itself. The pressure reading is very crucial to tell ECU find its proper fuel ignition coordinates in its map. The MAP sensor Coordinates with the IAT sensor (Intake air temperature sensor) 3. IAT (Intake Air Temperature) Sensor: It is a Sensor used for measuring the temperature of air entering into an intake manifold so that its density can be calculated by measuring pressure through MAP sensor. It is very robust in construction. The 2 Adjustment Screws

Open Document