The gear pump itself consists of a pair of gears – an inner gear and an outer gear – which work in tandem to circulate fluid throughout the system.

The inner gear of the pump is connected to the housing of the torque converter, and as a result, it rotates at the same speed as the engine. This synchronized movement ensures that the pump is constantly drawing fluid from the sump and pumping it into the transmission. As the gears rotate, fluid is drawn in on one side of the crescent-shaped housing and then forced out into the hydraulic system on the opposite side. This continuous circulation of fluid is critical for the transmission to function smoothly, as it ensures that the necessary hydraulic pressure is maintained throughout the system.

In addition to the gear pump, the Car Lift For Sale Loveland CO automatic transmission is equipped with a governor, a unique component that helps regulate the transmission’s shifting process by providing crucial information about the vehicle’s speed. The governor is connected to the output shaft, and as the vehicle accelerates, the governor spins faster. Inside the governor, there is a spring-loaded valve that opens in proportion to the speed at which the governor is spinning. Essentially, the faster the vehicle moves, the more the governor valve opens, allowing more fluid to pass through. The fluid used by the governor comes from the pump, and it flows into the governor through the output shaft, which is driven by the rotation of the wheels. This helps the transmission adjust the hydraulic pressure to match the vehicle’s speed, which in turn dictates when the transmission should shift to a higher or lower gear.

The higher the speed, the more pressure is allowed through the Car Lift For Sale Loveland CO governor valve, which influences the shifting process. This mechanism allows the transmission to respond more appropriately to the demands of the vehicle as it accelerates or decelerates, ensuring smooth transitions between gears.

To facilitate proper shifting, automatic transmissions rely on a series of valves that work in coordination with each other. These Car Lift For Sale Loveland CO valves are responsible for controlling the hydraulic pressure that engages the various clutches and bands that hold the gears in place. The shift valves within the transmission body control which gear is engaged based on several factors, including the vehicle’s speed and throttle position. To accomplish this, the shift valves receive fluid from two main sources: the governor and the throttle valve. These valves regulate the flow of fluid through different hydraulic circuits to either engage or disengage the appropriate gear at the right time.

The manual valve is another key component in the shifting process. This valve is connected to the shift lever and determines which hydraulic circuits are activated based on the gear selected by the driver. For example, if the Car Lift For Sale Loveland CO vehicle is in third gear, the manual valve ensures that the hydraulic circuit for overdrive is not engaged. It prevents the system from mistakenly shifting into a higher gear when it’s not appropriate. In this way, the manual valve plays a significant role in controlling the transmission’s response to driver input.

The shift valves are responsible for engaging the various gears in the transmission. These valves are positioned in the valve body of the transmission and are activated when hydraulic pressure from the governor or the throttle valve reaches a specific level. The shift valve for the 1-to-2 shift, for example, controls the transition between first and second gear. The shift valve is pressurized with fluid from both the governor and the throttle valve, and it redirects this fluid into one of two hydraulic circuits, depending on the gear that the transmission is currently in. When the vehicle is accelerating, the shift valve will delay the shift if the vehicle is accelerating quickly. This delay ensures that the engine remains within the optimal power band and prevents the vehicle from shifting too soon. Though it seems we shouldn’t need to mention it, we do have to address the importance of following all of your safety precautions that you can find prominently displayed in all of your manufacturer’s handbooks. 

On the other hand, if the Car Lift For Sale Loveland CO vehicle is accelerating more gently, the shift valve will respond more quickly, allowing the transmission to shift to a higher gear sooner. This allows for smoother driving and more efficient fuel consumption when the vehicle is not under heavy load. The response of the shift valve is directly influenced by the pressure applied by the throttle valve. This ensures that the transmission remains in the appropriate gear for the driving conditions.

This shift will occur more gradually when the car is accelerating at a gentler pace, as the throttle valve is not applying as much pressure. In contrast, when the car accelerates more aggressively, the throttle valve exerts more pressure, meaning that the shift valve will not be triggered until the vehicle reaches a higher speed. Each shift valve in the transmission has a specific range of pressures it responds to, and as the vehicle’s speed increases, different shift valves are activated in sequence to manage the shift from one gear to the next. For example, when the vehicle reaches the speed required for the 2-to-3 shift, the corresponding shift valve will take over, allowing the Car Lift For Sale Loveland CO transmission to transition smoothly into third gear.

In more recent vehicles, electronically controlled transmissions have become increasingly common. These transmissions still rely on hydraulics to engage the clutches and bands, but they incorporate Car Lift For Sale Loveland CO electric solenoids to control the hydraulic circuits. This integration of electronics allows for more sophisticated control over the shifting process. Instead of relying purely on mechanical linkages and pressure from the governor or throttle valve, electronically controlled transmissions use a central transmission controller to monitor various inputs, such as vehicle speed, throttle position, engine speed, and even whether the brake pedal is engaged.