It is also the smaller height, measureded from the "belt pitch line", of the backside of the tooth belt (as compared to the height of the front side with the teeth), allowing a wider angle of the belt at the center of the "X". #Twistit motors and transmission freeIn comparison to the (b) arrangement, at the center of the "X" of the © arrangement the backsides of the tooth belt face each other, leaving (and protecting this way) the teeth at the other "external" sides.Įven if the backsides of the tooth belt are left free to touch each other at the middle of the "X", the system works reliably:īesides keeping the teethed sides away from each other, In order to avoid the touching / wear / friction of the teeth, the two "crossing" parts of the belt (at the center of the "X") must be kept at a safety distance by spacers, rollers, tensioners etc.Īt © an unconventional, as explained in the following, tooth belt interconnects the two sprockets the sprockets rotate at opposite direction with the same 1:1 transmission ratio. The tooth belt forms a big "X" between the two sprockets, with the teeth, at the center of the "X", facing each other. The distance of the two sprockets is smaller. The two sprockets rotate at the same direction.Īt (b) the conventional tooth belt of the (a) arrangement is utilised in a different way: the two sprockets rotate at opposite direction with the same 1:1 transmission ratio. #Twistit motors and transmission seriesFor instance: in order the two crankshafts (disposed at a distance from each other) of an opposed piston engine (click here) to counter-rotate in synchronization, a tooth belt would be preferable than a series of gear wheels (or than four bevel gears and a shaft) but the "same direction" limitation is not allowing the use of a tooth belt.Īt (a) a conventional tooth belt is engaging a pair of tooth belt sprockets at 1:1 transmission ratio. In several applications, however, the two shafts must rotate at opposite direction. In the typical case, a belt having teeth at one side engages a pair of pulleys (or sprockets).Ī limitation of this transmission: the two sprockets (and the shafts wherein they are secured) rotate necessarily at the same direction. The advantages of the tooth belts for the transmission of power (as in the final transmission of motorcycles, for instance) and for the synchronization of shafts (like: crankshaft to camshaft) are well known: efficient, reliable, lightweight, simple, cheap, quiet, smooth, lubricant free and maintenance free. Learn more about the Chevrolet Blazer EV. #Twistit motors and transmission driverSuper Cruise and other active safety and driver assistance features will be optional. The Blazer EV comes with FCW, AEB with pedestrian detection, LKA, LDW, and ACC. Features and services can be personalized, and upgraded, using GM’s Ultifi software. The cockpit is fitted with two large screens: an 11-inch instrument panel display and a 17.7-inch infotainment screen. An SS that touts 557 hp and an estimated 290-mile range will be available later that year. There is also a sporty RS trim with an estimated 320-mile range. This midsized SUV will meet the competition, notably the Ford Mustang Mach-E, Volkswagen ID.4, and Hyundai-Kia pair in terms of price, functionality, and range. It will be offered in several trims, initially starting with the 2LT trim for $47,595 with a 293-mile estimated range. The Blazer EV is based on GM’s Ultium platform that underpins the latest automaker’s electric models.
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