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Early hydraulic dynamometer, with dead-weight torque measurement. An absorbing dynamometer acts as a load that is driven by the prime mover that is under test (e.g. Pelton wheel). The dynamometer must be able to operate at any speed and load to any level of torque that the test requires.
Thanks for clearing that up :o), knew he invented some form of dyno. I used to work at Froude in the early 80's. I think specifically he is credited with invented the hydraulic dynamometer for testing ship engines in-situ. The dyno was attached to the prop shaft in place of the prop and submerged, providing a convenient source of cold water.
In 1880 it was fitted with a Woods hydraulic brake and 9 years later with a standard Westinghouse air brake. In 1890 the car was marked for departmental use [note 1] In 1896 the car was converted to the dynagraph car. The dynagraph car was an early form of dynamometer car for testing tractive effort of locomotives.
The first modern dynamometer car in the United States was built in 1874 by P. H. Dudley for the New York Central Railroad. The early cars used a system of springs and mechanical linkages to effectively use the front coupler on the car as a scale and directly measure the force on the coupler. The car would also have a means to measure the speed ...
The former Heenan & Froude offices, Worcester, September 2007 A Heenan & Froude developed water brake dynamometer Heenan & Froude was a United Kingdom-based engineering company, founded in 1881 in Newton Heath, Manchester, England, in a partnership formed by engineers Richard Froude and Richard Hammersley Heenan.
Pages in category "Dynamometers" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes. C. Chassis dynamometer; D.
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