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Dynomometer

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Dynomometers test the performance of an engine by letting it run for long intervals at high speeds; however, the vehicle does not move and can be operated by a computer system. Some dynomometers are constructed of a frame that holds the vehicle above engine mounts, an absorption unit like a rolling cylinder, a heat exchanger and a torque measuring device. Read More…

Dynomometer Dynomometers are used to determine the torque and rotations per minute of an engine. They are widely used for automotive applications and are also called dynos, dynometers or dynamometers.
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Leading Manufacturers

Owosso, MI  |  989-720-2700

We provide dynamometer test controls and equipment for a wide range of applications. Our test cell control system is compatible with all types of dynamometers, including AC & DC motoring dynos & Water Brake Systems. Our products all include the durability & quality customers expect from SAKOR. Our dynamometers are powerful & affordable for the automotive, aerospace & heavy equipment industries.

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SAKOR Technologies, Inc. $$$

Northville Township, MI  |  734-656-1400

Here at Meiden America, Inc. we manufacturer an extensive line of dynamometers. Our products include: ultra low inertia permanent magnet dynamometers, FREC dynamometers, eddy current dynamometers, and much more. Our experts are available to assist you with finding the best product for your application.

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Meiden America, Inc. $$$

Monterey, CA  |  831-373-0200

Customers choose Sierra Instruments when they need a dynamometer that is accurate and repeatable. We also offer short delivery lead times, expert flow advice, and long term customer support. Our line of dynamometers include chassis, eddy, hydraulic, and more. When it matters, choose Sierra. Contact us today to learn more!

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Sierra Instruments $$$

Sturtevant, WI  |  818-746-3649

Phoenix Dynamometer Technologies LLC offers the most comprehensive approach to water re-circulation systems, data acquisition systems, and dynamometers in the industry. Along with these high performance products, we also offer business continuity and a competitive advantage for our customers. Come and experience the kind of service that sets us above our competitors. We would love to serve you today. Call or visit us online!

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Phoenix Dynamometer Technologies LLC $$$

Agawam, MA  |  800-866-3672

As a distributor of force measuring gauges, testing machines, dynamometers and torque testers, C.S.C. Force Measurement has been depended upon for over 50 years. Our force measurement systems products are from CDI, Chattillon, Dillon and Mark-10. We also provide pre-owned and rental equipment. Visit our website to learn more or browse through our online store.

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C.S.C. Force Measurement, Inc. $$$

Buffalo, NY  |  716-668-5555

We manufacture dynamometers: brake and electric motor dynamometers, torque testers and force measuring instruments. Our versatile dynamometers include engine dynamometers and dynamometer scales for various applications, scales, force measuring and measuring other instruments. For more information, contact Magtrol today!

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Magtrol, Inc. $$$
placeholder image SAKOR Technologies, Inc. Meiden America, Inc. Sierra Instruments Phoenix Dynamometer Technologies LLC C.S.C. Force Measurement, Inc. Magtrol, Inc.

Some models require hydraulic fluid, water or oil to operate. Modern dynomometers are computer controlled and are able to graph the capabilities and horsepower output of the engine in terms of the torque capacity, the maximum power absorption and the maximum rotary speed.

Dynamometer Dynamometer - Froude, Inc.

There are also additional features that are able to provide an analysis of emissions and reaction time. Interface options include a control console, a computer or a remote control. Dynomometers are used to measure the torque and RPMs for chain or belt drives, gearboxes, fluid power systems, gas or diesel systems, transmissions, turbines and other applications.

They are predominantly found in the automotive industry but are used for aircraft, aerospace, marine and industrial processes where engines and motors are critical. Chassis and engine dynomometers are the two main kinds of this machine. The difference is that chassis dynos measure an engine's output through the wheels of the vehicle, whereas engine dynos take readings directly from the engine itself. For chassis dynomometers, the vehicle is placed on the frame and lowered onto the rollers.

It is strapped into place and a computer starts the ignition through a spark plug. The wheels turn the absorption unit, which absorbs the energy; they are usually large metal cylinders. The computer measures how quickly the cylinders rotate and, along with factoring in the weight of the cylinders, determines the torque.

The reading is often 15% to 20% lower than a reading taken by an engine dynomometer because the energy experiences losses due to friction throughout the drivetrain. Engine dynos take measurements straight from an engine, which makes them more accurate. The torque measuring device is connected to the crankshaft or flywheel; a liquid may be used to provide resistance and cooling for the engine.

These machines are used frequently to test new engines that have not yet been installed in a vehicle or to examine an engine that is being rebuilt. Since the reading is taken directly from the engine and does not include any power loss from the drivetrain, the measurement may be referred to as engine horsepower.

Dynomometer Informational Video