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Hydraulic Dynamometers

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They are stable and take measurements without requiring the removal of the engine. These machines are also called water brake dynamometers because they use water or oil in the load cell. Read More…

Hydraulic Dynamometers Hydraulic dynamometers are used to measure the power of an engine by using a cell filled with liquid to increase its load.
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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.

They can create different loads on the engine and maintain a steady RPM rate while testing. Because of this, they are often used for trouble shooting tuning problems in the engine and determining if a part is not performing. The working compartment of the hydraulic dynamometer consists of special semi-circular shaped vanes cast into stainless steel rotor and stators. Water flowing in a torodial vortex pattern around these vanes creates a torque reaction through the dynamometer casing which is measured by a precision load cell.

High Speed Hydraulic Dynamometer High Speed Hydraulic Dynamometer - Froude, Inc.

The hydraulic dynamometer fill level and consequently load is controlled by a water outlet valve, operated by a closed loop electro-hydraulic dynamometer fill level and consequently load is controlled by a water outlet valve, operated by a closed loop electro-hydraulic servo system.

The power absorbed by the dynamometer is carried away by the water in the form of heat. Applied torque by the dynamometer is measured by a load cell installed on the arm of the dynamometer. The load cell signal is transmitted to a load cell amplifier. Control command is supplied to the outlet analog water valve, through an electronic/pneumatic transducer, which converts the electric signal to proportional air quantity as supply to the valve.

Hydraulic dynamometers are used as loading units in engine test rigs. They cover a wide range of dynamometer power and torque values. They are well suited for testing of passenger car and commercial vehicle diesel engines, testing of large railway- and marine engines, engine testing in tandem configuration with asynchronous motor, testing in research and development testing in production and quality assurance.

They are however more complicated than systems that use rolling barrels because of the way the dynamometer is attached. Also, the data requires more effort and knowledge to decipher because most hydraulic dynamometers are analog.

These machines are used in automotive, aircraft, aerospace, marine, and industrial processes to measure chain or belt drives, gear boxes, fluid power systems, gas or diesel systems or transmissions in vehicles and motorcycles.

Hydraulic Dynamometer Informational Video