AutoMotive News

The technology of Hydrogen Fuelled Rotary Engine                This hydrogen engine takes advantage of the characteristics of Mazda’s unique rotary engine and maintains a natural driving feeling unique to internal combustion engines. It also achieves excellent environmental performance with zero CO2 emissions.                Further, the hydrogen engine ensures performance and reliability equal to that of a gasoline engine. Since the gasoline version requires only a few design changes to allow it to operate on hydrogen, hydrogen-fueled rotary engine vehicles can be realized at low cost. In addition, because the dual-fuel system allows the engine to run on both hydrogen and gasoline, it is highly convenient for long-distance journeys and trips to areas with no hydrogen fuel supply. The technology of the RENESIS Hydrogen Rotary Engine:                The ...

Digital engine control systems                Traditionally, the term powertrain has been thought to include the engine, transmission, differential, and drive axle/wheel assemblies. With the advent of electronic controls, the powertrain also includes the electronic control system (in whatever configuration it has).                 In addition to engine control functions for emissions regulation, fuel economy, and performance, electronic controls are also used in the automatic transmission to select shifting as a function of operating conditions. Moreover, certain vehicles employ electronically controlled clutches in the differential (transaxle T/A) for traction control.                These electronic controls for these major powertrain components can either be separate (i.e., one for each component) or an integrated system regulating the powertrain...

How to Produce More Engine Power Car manufacturers are constantly playing with all of the following variables to make an engine more powerful and/or more fuel efficient. 1. Increase displacement:                  More displacement means more power because you can burn more gas during each revolution of the engine. You can increase displacement by making the cylinders bigger or by adding more cylinders. Twelve cylinders seems to be the practical limit. 2. Increase the compression ratio:                  Higher compression ratios produce more power, up to a point. The more you compress the air/fuel mixture, however, the more likely it is to spontaneously burst into flame (before the spark plug ignites it). Higher-octane gasoline prevent this sort of early combustion. That is why high-performance cars generally need high-octane gasoline -- their engines are using higher compression ratios to...

Engine Problems                Three fundamental things can happen: a bad fuel mix, lack of compression or lack of spark. Beyond that, thousands of minor things can create problems, but these are the "big three." Based on the simple engine we have been discussing, here is a quick rundown on how these problems affect your engine: Bad fuel mix : - A bad fuel mix can occur in several ways: ·  You are out of gas, so the engine is getting air but no fuel. ·  The air intake might be clogged, so there is fuel but not enough air. ·  The fuel system might be supplying too much or too little fuel to the mix, meaning that combustion does not occur properly. ·  There might be an impurity in the fuel (like water in your gas tank) that makes the fuel not burn. Lack of compression: - If the charge of air and fuel cannot be compressed properly, the combustion process will not work like it should. Lack of compression might occur for these ...

Components of Automobile Engine 1) Camshaft:                The camshaft is a type of rotating device or apparatus used in piston engines for propelling or operating poppet valves. Camshaft comprises of series of cams that regulates the opening and closing of valves in the piston engines. The camshaft works with the help of a belt, chain, and gears.   2) Crankshaft:                The crankshaft is a device, which converts the up and down movement of the piston into rotatory motion. This shaft is presented at the bottom of an engine and its main function is to rotate the pistons in a circular motion. The crankshaft is further connected to flywheel, clutch, and main shaft of the transmission, torque converter and belt pulley.                To convert Reciprocating motion of the Piston into Rotary motion, the Crankshaft and Connecting Rod combinatio...