What gear runs both pumps in an automatic transmission? - Hydraulic pump|Swing Motor|Hydraulic motor manufacturing

What gear runs both pumps in an automatic transmission?

In an automatic transmission, the gear that primarily drives both the hydraulic pump and the lubrication pump is typically the torque converter. The torque converter is connected to the engine's crankshaft, and it spins at the same speed as the engine. As the engine runs, the torque converter uses fluid dynamics to transmit power to the transmission gears and also drives the transmission's pumps. Specifically, the impeller within the torque converter is what drives the pumps, supplying the hydraulic pressure required to shift gears and providing lubrication to various transmission components. This centralized system ensures synchronized operation and is crucial for the transmission's performance.

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The torque converter is the main component that drives not only the hydraulic pump and the lubrication pump in an automatic transmission, but also in the traditional sense “gear”. It is a fluid coupling that links the engine to the transmission and transfers energy from it to the wheels.

This means that as a result, it spins at similar speeds with which engine rotates since it is directly attached to this component. At its center are two parts: impeller connected to an engine and turbine linked with gear box. When the engine runs, it causes rotation of impellers fluid that results into spinning of turbines too. This action not only moves rotational power from engine to gearbox, but also operates most times lubrication pumps and always hydraulic pumps as well.

Hydraulic pressure generated by a hydraulic pump facilitates engagement or disengagement clutches bands used in planetary gearsets for shifting gears within an automatic transmission system. The significance of this judgment cannot be understated especially given that failure of this device or reduction in force can lead to complete system breakdown

The other function of a lubrication pump is making sure that each mechanical part inside transmission gets enough grease. Inadequate grease increase dynamic friction between sliding surfaces causing wear out which shortens life time of tranny. Typically, during operation such a device works hand in hand with another one called hydraulic pump thus sharing common source of turning movement provided by torque converter.

Thus, torque converter’s ability to correspond RPMs both engines’ speed requirements with those set for hydraulic pump and viscous drive mean much for proper functioning as well as achieving best possible efficiency from auto-transmission systems throughout. A centralized drive trains enable synchronized motion between power plant and gearbox resulting into more seamless shifts between ratios besides saving on fuel usage per mile covered by unit cost. Furthermore, such arrangement simplifies mechanical configuration thereby removing individual means for driving both devices necessary hence no need for several drives leading to reduced intricacy brought by separate compressors and therefore likelihood of malfunctioning.

To cut to the chase, for an automatic transmission, a torque converter serves as the central hub which drives both hydraulic pump and lubrication pump. It does this when attached directly to engine’s crankshaft hence supplying necessary hydraulic pressure and lubrication for automatic transmission system whenever it is in operation.

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