GMC Sierra Hybrid 2005 Accentuated with GMC Parts from Parts Train

Written by Jenny McLane

A standard Vortec 5300 5.3-liter V8 engine powersrepparttar Sierra Hybrid and a 4-speed Hydra-Matic automatic transmission coupled withrepparttar 142048 full-size truck segment’s first hybrid propulsion technology for improved fuel economy.

The Sierra hybrid uses electric power even less frequently. Its gasoline engine can shut down whenrepparttar 142049 car is stopped (actually, when it's braking to a stop, below 13 mph or so) and-that's it. The batteries (three 14-volt units plusrepparttar 142050 standard 12-volt) cannot powerrepparttar 142051 truck at low speeds. Nor do they help outrepparttar 142052 gasoline engine, which therefore can't be any smaller. It'srepparttar 142053 same 5.3-liter V-8 GM pickup buyers know and love. Because ofrepparttar 142054 limited nature of this hybrid system,repparttar 142055 benefits are mild: roughly 2 mpg in city driving and 1 mpg duringrepparttar 142056 EPA's highway cycle.

The system replacesrepparttar 142057 traditional starter motor and alternator with a compact 14-kw electric induction motor or starter generator integrated betweenrepparttar 142058 engine and transmission. The starter generator provides fast, quiet starting power and allowsrepparttar 142059 gasoline engine to automatically start and stop under certain conditions to conserve fuel.

The Sierra Hybrid also offers four 120-volt/20-amp electrical auxiliary power outlets located underrepparttar 142060 rear seat and inrepparttar 142061 pickup bed. Becauserepparttar 142062 5.3-liter V-8 isrepparttar 142063 same as that in non-hybrid pickups, its power and torque outputs arerepparttar 142064 same (295 horsepower, 325 pound-feet of torque). Acceleration, towing, and payload are undiminished. The extra hybrid gear takes up very little space-the biggest component,repparttar 142065 three extra batteries, is underrepparttar 142066 rear seat. One interesting feature ofrepparttar 142067 hybrid trucks are its four, 120-volt 20-amp AC power outlets inrepparttar 142068 cargo bed andrepparttar 142069 rear seat; butrepparttar 142070 engine must be running in order to use them.

Volkswagen Touran Hymotion: Fuel Cell Hybrid Vehicle Plus Top Rate VW Replacement Parts

Written by Jenny McLane

Automakers know that rising oil prices and tougher environmental rules will increaserepparttar public's interest in vehicles that use less fuel with reduced tail pipe emissions.

Hybrids increase fuel efficiency by capturingrepparttar 142047 energy normally lost to friction braking and storing it in a battery for later use when driving power is again required. Unlike internal combustion engine hybrids, Volkswagen's hydrogen fuel cell hybrid emits only water.

The VW Touran Hymotion has high-torque electric motor that draws its power from a fuel cell and is absolutely emission free. The standard version, driven by petrol and diesel engines, which are as agile as they are economical, is by farrepparttar 142048 most successful van available in Germany. Inrepparttar 142049 Touran HyMotion, an 80 kW electric motor provides vehement propulsion.

The core element of this fuel cell is an extremely thin plastic film (membrane). This spatially separatesrepparttar 142050 reagents, hydrogen and oxygen. The hydrogen is broken down into positively and negatively charged particles (protons and electrons). The protons are able to pass directly throughrepparttar 142051 membrane, whilstrepparttar 142052 electrons take a more indirect route via an external current circuit, drivingrepparttar 142053 electric motor. Onrepparttar 142054 other side ofrepparttar 142055 membrane,repparttar 142056 protons, electrons and oxygen combine to form water.

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