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. 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.
Related Categories
|
SAKOR Technologies, Inc.Okemos, MI 517-332-7256 SAKOR Technologies is a recognized world leader in the development of reliable and cost-effective automated dynomometer based test systems for a wide range of applications. For over 24 years, SAKOR has been providing quality products and superior customer service to a variety of markets including automotive, military, aerospace, marine, heavy equipment, electric motor/generator & more.
Wineman Technology, Inc.Saginaw, MI 989-771-3000 Established in 1991, Wineman Technology, Inc. specializes in providing the right technical solution for solving a wide range of test applications, such as dynomometer systems, data acquisition systems, real time controllers, hardware-in-the-loop systems, general testing machines and more. With its experienced professionals and cutting edge facilities, Wineman can bring you superior solutions.
Land & Sea, Inc.Concord, NH 866-396-6648 For precision designed and manufactured dynomometer solutions, turn to the experts at Land & Sea, a leading company in high-quality test controls & equipment. Although these types of instruments & tools have been around about as long as automobiles, they have since evolved into much-more complex machines, making it important to put your trust in capable hands - make Land & Sea your source today!
Power Test, Inc.Sussex, WI 262-252-4301 Power Test, Inc. is an industry leader in the design, manufacture, and implementation of dynomometer control systems among many other related quality products. Power Test's exceptional product life and manufacturing experience has made it an industry leader. Power Test's dedication to you, the customer, and to the advances in engine and vehicle testing keep it there. Contact Power Test now!
Locher, Inc.Lancaster, OH 800-956-2437 At Locher, highly experienced professionals can provide you with precision manufactured dynomometer solutions that will meet or exceed your expectation, in addition to a full line of quality products and services, including complete spindle rebuilding, in-place spindle regrinding, tapered insert retrofits (for boring mills) and bar & sleeve repairs - performed either in Locher's factory or yours.
|
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. 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. 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.
