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Schenk eddy current dynamometers

In engine testing, eddy-current dynamometers are used as load units for the test specimen.

Features

The W-series dynamometer stands out because it has the following features:

• High speeds for testing engines of passenger cars
  
• High torques at very low speeds for commercial vehicle engines
  
• Low inertia at high power
  
• Suitable for two rotating directions
  
• High measuring accuracy due to contact-free speed measurement via pulse generator as well as torque measurement via load cell
  
• Easy maintenance due to Schenck patented flexures
  

Specifications

Torque/Speed Measuring System

	Measuring accuracy speed	(rpm)	±1, not lower than 0.025 % of rating
	Measuring accuracy torque	(%)	0.2, referring to rating
	Control accuracy speed*	(rpm)	±10
	Control accuracy torque*	(%)	±1, referring to rating

 

*referring to the system eddy-current dyno, power supply unit, test stand controller

Other specs

			W 40	W 70	W 130	W 230	W 700
	Power	(kW)	40	70	130	230	700
	Rated torque	(Nm)	75	150	400	750	4000
	Minimal speed for	(rpm)	2000	1350	1250	620	400
	rated torque
	Maximal speed	(rpm)	17000	13000	10000	7500	4000
	Minimal speed for maximal power	(rpm)	5093	4457	3104	2928	1671
	Moment of inertia	(kgm²)	0,01	0,035	0,14	0,53	7,9
	Maximal share of mass to be coupled at nmax	(kg)	0,5	1,0	2,0	4,5	26,0
	Maximum exciting	(A)	1,8	3,6	6,1	6,1	10,0
	current
	Color pendulum body		RAL 7032
	Color frame		RAL 7022
	Operating temperature	(°C)	0…+70 without cooling water addition
			–25…+70 with antifreezer and power reduction of 10-20%
	Transporting and storage temperature	(°C)	–50…+85
	Cooling water supply	(m³/h)	Contact us

 

			WS130	WS230F	WS400F	WS700	WS1200	W3S480	W3S700
	Power	(kW)	130	230	400	700	1200	480	700
	Rated torque	(Nm)	400	750	2000	4000	10000	750	2000
	Minimal speed for rated torque	(rpm)	1250	620	620	400	340	3000	1400
	Maximal speed	(rpm)	13000	10000	7500	5500	4000	13000	10000
	Minimal speed for maximal power	(rpm)	3104	2928	1910	1671	1146	6112	3443
	Moment of inertia	(kgm²)	0,14	0,53	2,0	8,0	33,0	0,46	1,6
	Maximal share of mass to be coupled at nmax	(kg)	2,0	4,5	10,0	26,0	63,0	2,0	4,5
	Maximum exiting current	(A)	6,1	6,1	5,5	10,0	13,0	18,0	18,0
	Weight	(kg)	276	480	820	1890	3990	860	1550
	Color pendulum body		RAL 7032
	Color frame		RAL 7022
	Operating temperature	(°C)	0…+70 without cooling water addition					0…+60	0…+70
			–25…+70 with antifreeze and power reduction of 10-20%
	Transporting and storage temperature	(°C)	–50…+85
	Cooling water supply	(m³/h)	Contact Us

 

Downloads

Datasheets
Schenk Eddy Current Dynamometer datasheet