GRADUAL EXCHANGE

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“GRADUAL EXCHANGE”. The asked for gift of patent mentions one exchange to it for vehicles that the comfort provides to direct of one exchange automatic with the cost of similar manufacture and maintenance to the ones of one exchange mechanical common, and with more efficient exploitation of the traction of the engine. The mechanical exchange presents a series of disadvantages, as : - Excessively distant Marches ones of other-Necessity of the rise of the rotation for exchange of marches, increasing in equal ratio the consumption of fuel, problems of overheating, consuming of parts, etc. - always incompatible Torque and rotation with the necessities, what it demands continuous and laborious exchanges of marches, affecting the performance of the engine. - The mechanical exchange if shows exceeded, mainly in what it says respect to its performance in ascents. Due to interruption of the traction for the exchange of marches, the vehicle reduces the speed drastically, and, for more skillful than either the driver, when the exchange is effected, the vehicle needs plus a reduction and demands an effort is of the appropriate conductions of use of the engine. The exchanges automatic and hidramático are extremely complex and expensive. Beyond presenting some of the disadvantages presented for the mechanical exchange, they do not transmit traction total, what it implies in lesser final speed. The asked for gift of patent, with intention to solve such inconveniences, consists of one exchange in which the traction is transmitted by intermediary of a differential, that acts between two extremities : with the stopped record, the transmission is total, and with the free record, the transmission is minimum. The mechanical control of the record of the differential, and, therefore, of the tractive flow, is exerted by means of a hydraulical system (bomb and register), that it is activated by an servant-engine (25) commanded by the alternator (28) and a selector one (27). The servant-engine (25) liberates traction in accordance with two factors : frequency of rotation of the engine (1) and one has adjusted finishes (exchange of marches) effected by the selector one (27), in accordance with the conductor of the vehicle (manual system) or a computer (automatic system). The presented system brings diverse advantages in relation to the mechanical exchange used currently, namely : - The necessity of high rotations for exchange of marches Eliminates; - Easiness for the conductor of the vehicle, a time that the exchanges of marches (that they will be rare) can be executed with a simple touch of button; - The torque all varies during the functioning time, adjusting itself at every moment as the necessity; - Tractive uninterrupted Supply, exactly when the torque variation happens, having interruption of the traction only in the inversion of the direction of the marches; - Bigger useful life of the clutch record; - One better exploitation of the traction of the engine Provides