Positive displacement flow meter low flow rate | Water saving tips (English version) | Vortex flow meter

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1. English introduction of Porsche 911tubro

conceptWhen Porsche develops a new Turbo, enthusiasts don’t expect us to push the envelope. They expect us to shred it. The new 911 Turbo surpasses those expectations. It’s the first 911 Turbo with Variable Turbine Geometry (VTG). The first with actively controlled all-wheel drive. The first to reach 60 mph in less than four seconds. Altogether, it’s the most rewarding 911 Turbo yet.design exteriorFrom the production of the first model in 1974, the 911 Turbo has never hidden its intent. The newest model continues this tradition with a design that is singularly powerful. Like the turbochargers under its skin, the body of the 911 Turbo is a model of aerodynamic control. The body’s aerodynamic profile has been painstakingly tested to create positive downforce at the rear, without speed-robbing drag. The drag coefficient is remarkably low at just 0.31.The new front is designed to put onrushing air to optimum use. Massive air inlets direct cooling air to the twin radiators located in the car’s nose. High-powered lighting technology plays an important supporting role. The new headlamps echo the traditional 911 design, with the modern advantage of ultra-bright Bi-Xenon lighting and an integrated cleaning system. Compact fog lamps and turn indicators assist in creating undisturbed airflow.The side air intakes behind the doors provide efficient air delivery to the twin intercoolers. As is typical in Porsche racing cars, air ducts are also directed to both the front and rear brakes; their cooling action plays a key role in eliminating brake fade. Black plastic sills along the sides of the body provide effective protection against stone chips.The new 911 Turbo is much wider

across the rear than the front. The generous wheel track and wider tires provide for massive lateral grip. The new engine lid design features an integrated rear splitwing spoiler; the upper wing element is automatically raised at approximately 75 mph (120 km/h) and lowered at around 37 mph (60 km/h). The purposeful side air outlets and fully enclosed twin tailpipes are a further indication of the power within.interior designThe interior of the car is equally compelling and entirely designed around the driver. The high-quality surfaces include a full leather finish on the standard electric seats as well as the dashboard, doors and rear side panels. Two sports seat options are also available, one featuring adaptive adjustment. The standard equipment package includes a new gear-knob design - created exclusively for the 911 Turbo - and a three-spoke sports steering wheel featuring 1.57 in. (940 mm) of height and reach adjustment.Every detail of the new 911 Turbo is a direct expression of power, composure and comfort. The design makes a clear statement: a new era has arrived for this legendary sports car.historyOver the past century, the turbo concept has undergone multiple uses and refinements. It was first embraced by the aviation industry, which used turbochargers to provide more oxygen to engines during high-altitude flight. In the 1930s, turbochargers were applied to diesel engines, to compensate for their relatively slow acceleration.Porsche was among the first to realize the potential of the technology for racing engines. Using high-boost turbochargers, Porsche engineers developed small displacement engines that produced astounding power for their size and weight.Porsche’s first turbo racing car set the bar high,

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