Abstract: An exhauster bypass system 20 receives an input flow of gases and entrained fine solid particles 15 from a pulverizer 12 and separates the input flow into a particle-deficient gas flow and a particle-laden gas flow. The particle-deficient gas flow is provided to a fan of an exhauster assembly through a central outlet, while the particle-laden gas flow is provided to the exhauster assembly away from the fan through a bypass outlet. The bypass system includes a housing that provides a chamber for separating the particles from the hot gases to produce the particle-laden gas flow and a particle-deficient gas flow. The bypass system further includes a plurality of vertically stacked louvers disposed before the central outlet for separating the particles from the input gas flow. The outlet may include a seal or bypass fan in fluid communication with the bypass outlet to provide the particle-laden gas flow to the exhauster assembly.

Abstract: An exhauster bypass system 20 receives an input flow of gases and entrained fine solid particles 15 from a pulverizer 12 and separates the input flow into a particle-deficient gas flow and a particle-laden gas flow. The particle-deficient gas flow is provided to a fan of an exhauster assembly through a central outlet, while the particle-laden gas flow is provided to the exhauster assembly away from the fan through a bypass outlet. The bypass system includes a housing that provides a chamber for separating the particles from the hot gases to produce the particle-laden gas flow and a particle-deficient gas flow. The bypass system further includes a plurality of vertically stacked louvers disposed before the central outlet for separating the particles from the input gas flow. The outlet may include a seal or bypass fan in fluid communication with the bypass outlet to provide the particle-laden gas flow to the exhauster assembly.

Abstract: An automatic control system for a multiple ratio power transmission mechanism having a hydrokinetic torque converter and multiple ratio gearing, the speed ration of which is controlled by selectively engageable clutches and brakes, the control system including a timing valve circuit that is effective to establish optimum timing between the clutch and brake engagement and release pattern during ratio changes at various driving torques and at various magnitudes of transmission throttle valve pressures, the latter being an indicator of the operator's demand for driving torque.

Abstract: A flyweight governor valve assembly having a fluid pressure modulator valve element mounted within a valve chamber for axial movement, a first set of primary and secondary weights mounted on a valve sleeve that forms a part of the governor valve assembly, a second set of primary and secondary weights mounted on said sleeve for rotation about the axis of said valve assembly. A spring acting between the primary and secondary weights of each set of weights, the primary weight for one set being separated from its corresponding second weight at a first brake point speed and a primary weight of the second set of weights being separated from its associated second weight at a second brake point speed, each set of weights being pivotally carried by a lever, the operating end of which engages the valve element whereby centrifugal force acting on said weight are translated to axial shifting movement of said valve element to oppose fluid pressure forces acting thereon.

Abstract: A multiple ratio power transmission mechanism having a gear system and a hydrokinetic unit with a lockup clutch that responds to pressure in the hydrokinetic unit to establish a mechanical torque delivery path around the hydrokinetic unit and a valve system for engaging and disengaging the clutch and for controlling clutch capacity by modulating the clutch pressure and by controlling the direction of fluid flow through the hydrokinetic unit.