Hydraulic dynamometers are machines that measure the power of an engine by using a cell filled with liquid to increase its load. Dynamometers, dynos or dynometers are used extensively in automotive and recreational vehicle applications because determining torque capacity, maximum rotary speed and maximum power absorption is important and valuable information for many drivers and riders.
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SAKOR Technologies, Inc.Okemos, MI 517-332-7256 SAKOR Technologies stands behind its hydraulic dynamometers. SAKOR's underlying philosophy is based on establishing a collaborative relationship with its customers, which greatly minimizes the possibility of costly scope and engineering changes during the design process. It comes down to trust. SAKOR asks questions so it can find out what it is that you really need. Call today.
Wineman Technology, Inc.Saginaw, MI 989-771-3000 Unlike other companies where test plays a partial role, Wineman Technology's singular focus is the design and development of test equipment for advanced research and development, functional test labs and manufacturing production. For precision manufactured hydraulic dynamometers with maximum system reliability, serviceability and support, turn to Wineman Technology today.
Land & Sea, Inc.Concord, NH 866-396-6648 Are you in the market for quality, cost-effective hydraulic dynamometers you can really trust in? If so, then the experienced professionals at Land & Sea, Inc. can deliver you the sort of superior results unparalleled in the industry. From automotive and industrial to laboratory and marine, Land & Sea services a wide range of applications and industries. Please contact Land & Sea, Inc. today.
Power Test, Inc.Sussex, WI 262-252-4301 In addition to excellent hydraulic dynamometers, Power Test, Inc. is able to rapidly prototype new products and create customized solutions for individual needs. Power Test's extensive knowledge and experience allows it to address the needs of any customer and enables it to control manufacturing costs, assure on-time deliveries and be directly responsible for a high level of quality.
Locher, Inc.Lancaster, OH 800-956-2437 Locher, Inc. can assure you that its team of talented experts can deliver you the quality hydraulic dynamometers you're looking for - on time and at an affordable price. Additionally, any spindles entrusted to Locher are repaired by highly trained spindle experts who utilize the latest in equipment and technology, readily able to analyze and repair your spindles with a quick turnaround.
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Hydraulic dynamometers are stationary and take measurements without requiring removal of the engine. These machines are also called water brake dynos because they use water or oil in the load cell. They are able to create different loads on the engine as well as maintain a steady RPM rate while testing, unlike inertia or chassis dynamometers. Because of this, these dynos are often used for troubleshooting tuning problems in the engine and determining if a part is not performing. In this way they contribute to a good overall power instead of a machine with a high horsepower peak. However, hydraulic dynos are more complicated than systems that use rolling barrels because of the way the dyno is attached. Also, the data requires more effort and knowledge to decipher because most hydraulic dynamometers are analog. Despite the few difficulties, these machines are still used in automotive, aircraft, aerospace, marine and industrial processes to measure chain or belt drives, gearboxes, fluid power systems, gas or diesel systems or transmissions in vehicles and motorcycles.
Hydraulic dynamometers couple the output shaft of an engine to a fan that rotates within a concentric enclosure. When the engine runs, the housing fills with a certain amount of water or other liquid. The more water in the housing, the more resistance it provides and the more load the engine feels. These kinds of dynos are able to accurately reproduce actual conditions in order to determine the engine's capabilities and shortcomings. As the fan spins, the blades impart kinetic energy to the water, and it whips around the housing, applying a force that is tangential to the housing radius. A data acquisition system uses sensors to measure force, the RPM of the input shaft, oil pressure, fuel pressure, fuel flow rate and other variables, which are often displayed on gauges though a computer setup if possible and more convenient. Because of the time and effort required to set up a hydraulic dyno, inertia dynamometers are more popular, though both kinds have advantages and drawbacks. Both inertia and hydraulic dynamometers are types of chassis dynos because the vehicle is kept intact during the test. Engine dynos require that the engine be removed so it can be tested. This provides a more accurate reading because the system does not experience the 15% to 20% energy loss due to friction through the drivetrain. It is also useful for testing motors before they are installed in the frame.
