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…
Leading Manufacturers
SAKOR Technologies, Inc.
Owosso, MI | 989-720-2700We 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.
Phoenix Dynamometer Technologies LLC
Sturtevant, WI | 818-746-3649Phoenix 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...
Power Test, Inc.
Sussex, WI | 262-252-4301Since our inception we have been committed to manufacturing top of the line dynamometers that will stand up to the rigorous wear and tear of every day application. Our products serve in many diverse industries including automotive, automation, industrial as well as a broad variety of others! To learn more about what we may be able to do for you visit our website today for more information!
Burke E. Porter Machinery Company
Grand Rapids, MI | 616-234-1200Since 1953, our customers have helped us earn the reputation of a technology pioneer and global leader in Vehicle Test Systems. As the manufacturer of the first fully electric DVT roll-brake machine, we paved the way for innovation in automotive and heavy duty vehicle testing, supplying end-of-line equipment, dynamometers, and tire & wheel assembly systems to major OEMs throughout the world.
Hydraulic Dynamometers List
Standard Hydraulic Dynamometers - Froude, 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 - 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.
