Torque is frictionless. Torque is generated without contact, so life is long. Torque is very accurate and smooth, throughout the entire speed range.

The graph shown below represents a typical (BH) Torque vs. Current curve for an electromagnetic brake or clutch. The torque for a given amount of current is different when the current is increasing than when it is decreasing. This is due to the hysteresis phenomenon of magnetic material. See similar questions...

Hysteresis brakes and clutches rely purely on magnetic action working through an air gap to develop torque. They have an extremely wide torque range. Hysteresis brakes and clutches are generally similar in construction to such magnetic particle devices, except that the magnetic particles are eliminated and magnetic forces-rather than frictional forces-provide the clutching medium. Since torque is produced without physical contact of parts, hysteresis devices are not subject to wear. See similar questions...

The difference between downcast and upcast is most likely related to package wake. When the CTD is mounted under a large water sampler, the variation can be on the order of 5 to 8 meters. This is due to the shadowing of the CTD sensors by the water sampler. See similar questions...

The significance of the level of hysteresis depends on the application. In certain applications and configurations, EPAM??? exhibits hysteresis. AMI characterizes effects such as hysteresis and addresses them in the course of product design to ensure that the customer's required operating specifications are met. See similar questions...

The required heat dissipation is too high for a magnetic particle brake. Even moderate RPM and torque generates a lot of heat. The heat dissipation rating is higher for a hysteresis brake with the same torque rating. See similar questions...

The worst application would require the brake to repeatedly change from high torque to low, while the shaft is moving slowly, or stopped. See similar questions...

Clessie L. Cummins, founder of the Cummins Engine Company, drove across the United States to demonstrate the viability of diesel engines in 1931. While descending Cajon pass in California, the foundation brakes on his vehicle faded and he and the crew of his truck were nearly killed. Shortly after this experience Clessie first conceived the idea of using the engine to slow a vehicle going down hill. See similar questions...

Under certain operating conditions, it is possible to set up a salient pole condition on the brake rotor that can result in a "cogging" phenomenon referred to as torque ripple. The cogging condition, is often incorrectly diagnosed as a defective brake. Cogging torque in a hysteresis brake or clutch is the result of having established salient poles on the rotor's magnetic material. See similar questions...

Exhaust brakes are widely used in the medium/heavy duty truck market, and Allison publishes guidelines for integrating exhaust brake controls with the TCM. This integration is necessary so that the transmission can alter its shift characteristics to maximize the exhaust brake's effectiveness and not adversely affect transmission operation when the exhaust brake is not in use. Allison Engineering has tested one manufacturer's aftermarket exhaust brake on a Duramax equipped pickup. See similar questions...

There are many benefits to having a vehicle, or a fleet of vehicles equipped with Jake Brake retarders (whether they are the Jacobs Engine Brake? or Jacobs Exhaust Brake?). Here are a few... The use of Jake Brake retarders reduces the wear and tear on the service brakes, reducing the frequency of brake system service. Brake drum temperatures increase with use, and pads wear faster when hot. See similar questions...

A standard technology engine brake consists of a solenoid valve, control valve, and master and slave pistons. These components are assembled into a housing as shown below. When the brake is activated, the solenoid allows oil to pass to the control valve. The control valve moves up and the check ball in the control valve is unseated, allowing oil to fill the master/slave piston circuit. See similar questions...

All pads contain some organic living materials. Resins that bind pad compounds together are organic-petro-chemical products. As these overheat the resins revert to gas and cause the pads to "aquaplane" on a gas film white is called fade. Some pads only fade once or twice and then settle down (green fade or bedding in fade). Other cheaper pads suffer from continual dynamic fade, sometimes at surprisingly low temperatures. See similar questions...

NVIDIA implements special security measures in its driver. They show themselves in the card's reducing the GPU frequency to 376MHz with the ensuing performance hit. This often happens during a test, thus resulting in a low score (even lower than at the regular frequencies). This "auto-brake" is the main obstacle to overclocking a 5900XT graphics card. See similar questions...

The pressure reference bending technology it utilises fulfils the highest demands for the production of sheet metal parts for a wide variety of applications in both light and heavy gauge sheet metal. See similar questions...

Exhaust brakes are available on some Freightliner chassis. An exhaust brake is a vehicle-retarding device that comes in handy in hilly terrain. It helps slow the vehicle, resulting in longer life of the service brakes. The parking brake will not release until there is at least 65 psi of pressure in the brake system. Check the air gauges to make sure that you have at least 65 psi in the air system before releasing the parking brake. If not, contact your nearest service facility. See similar questions...

Warranty on the Allison 1000 Series™ in GM pickups is administered by the Chevrolet or GMC divisions of GM, not directly by the Allison division of GM. Please consult your GM dealer regarding questions about warranty coverage. See similar questions...

Electric brakes are mechanical units that act much like a car brake. They have disks and wear pads that over time need adjustment and replacement. They are used on single speed machines and are efficient and reliable. They must be released if you want to turn the spindle by hand. During normal operations, They are released on starting the motor. Dynamic braking is used mostly on variable speed units that can be either DC or AC operations. See similar questions...

Jacobs Vehicle Systems is not developing an Engine Brake for these engines today. Typically engine brakes are applied to engines of 10.0-L displacement and higher. The Jacobs exhaust brake product is available for the Cummins B5.9, ISB, C8.3 and ISC engines. For more information about the Jacobs Exhaust Brakes for Cummins B and C engines, visit our Medium Duty Exhaust Brake Applications and Performance page, or our Exhaust Brakes for the Dodge Ram page. See similar questions...