MEANING OF RTR IN TVS APACHE

RTR in Apache means Racing Throttle Response .

Throttle response or vehicle responsiveness is a measure of how quickly a vehicle's prime mover, such as an internal combustion engine, can increase its power output in response to a driver's request for acceleration. Throttles are not used in diesel engines, but the term throttle can be used to refer to any input that modulates the power output of a vehicle's prime mover. Throttle response is often confused with increased power but is more accurately described as time rate of change of power levels.

Formerly, gasoline/petrol engines exhibited better throttle response than diesel engines. This results from higher specific power output and higher maximum engine power, as well as the fact that lower-powered diesel engines were disproportionately heavier. Recently diesel engines became able to outperform similar-sized petrol engines. Most naturally aspirated gasoline engines have better responsiveness than supercharged or turbocharged engines for engines with similar peak power outputs. However, factors such as improper maintenance, fouled spark plugs or bad injectors can reduce throttle response. Diesel engines are less likely to lose throttle response, since their power comes from self-igniting fuel. Older diesel engines directly connect the accelerator pedal to the injection pump resulting in instant response.

Several tuning factors can affect engine responsiveness.Throttle response in manual cars can be enhanced by dropping to a lower gear before accelerating. This action is often used in smaller cars to aid in overtaking.

introduction to gas turbine

A gas turbine is most satisfactory way of producing large power in compact unit. In gas turbine power plant, a gas turbine is used as the prime mover to produce mechanical energy. In gas turbine power plant, the working medium is either a mixture of combustion products(air and fuel) or heated air at a certain pressure and a higher initial temperature. The gas turbine obtains its power by utilizing the energy of burnt gases and air which are at high pressure and pressure by expanding through several rings of fixed or moving blades.


The simple gas turbine consists of

1) compressor,
2) combustion chamber and
3) turbine.


The basic on which a gas turbine works is similar to internal combustion engine. In both cases air is made to enter the prime mover which compresses and  then heated by combustion process. Hence pressure and temperature of working fluid is increased. This high temperature and prssure working fluid is then expanded in prime mover. The expanded products are discharged through exhust. However in the case of internal combustion engine is reciprocating machine in which charge induces in to engine cylinder intermittently. In case of gas turbine, flow of working fluid through the rotary machine(gas turbine) is continuous and smooth. with respect to design, a gas turbine is quite similar to steam turbine. In the turbine blading working gas expands and the heat energy is converted first in to the kinetic energy and then to the rotary motion of the turbine shaft. However in the seam power plant the product of combustion do not form the working medium. These are utilized to produced an intermediate fluid(steam) which is expanded in the steam turbine.