The document discusses a new generation of mechanical power variators (MPV) that can be used in a wide range of applications including agricultural machinery, construction equipment, vehicles, and industrial drives. It describes the working principle of MPV which uses variable eccentricity to provide stepless speed variation over a wide range. MPV offers advantages over other variator types such as high efficiency, broad speed control range, and reduced material usage. Technical specifications and test results for MPV integrated into tractor transmissions are also presented.

1. New generation of mechanical power VARIATORS

4. Transmissions’ characteristics Works with the greatest efficiency only in separate points. The characteristic of transmission with frictional variators Works effectively over the range speeds from Vmin to Vmax. Relation Vmax / Vmin = 3–6. EFFICIENCY more low, than in a mechanical step transmission. The characteristic of transmission with МPV Works effectively in a wide speed range. Vmax / Vmin is more than 1000. Works effectively in a repent regime. EFFICIENCY is commensurable with EFFICIENCY of a manual transmission. The characteristic of mechanical transmission Turns Moment The characteristic of ideal transmission

5. Areas of technical maintenance W kW Ultrahigh more than 500 High 100-500 Medium 10-100 Low 1-10 Ultralow less than 1 Ultralow Low Medium High Ultrahigh less than 10 10-200 200-3000 3000-10000 more than 10000 N turns / min Drive type MPV Hydraulic Wedge-belt Multidisc

7. Comparison МPV with other types of variators Expected fuel economy at using МPV in comparison with other types of variators : in a usual regime , % 5 – 8 in a repent regime , % 30 – 40 Drive type Parameter MPV Hydraulic Multidisc Wedge-belt Efficiency , % 92-95 75-87 85-89 84-88 Kinematic range , Vmax / Vmin 1000 and more 3 6 5 Comparative metal consumption , % 70 100 95 93

9. Technical data of a class 1.4 tractors' automatic transmission controlled by М PV The maximum transferred power HP /к W 136/100 Nominal rotational speed of the input shaft , min -1 1700 Max rotational speed of the input shaft , min -1 less 2200 Rotational speed of the output shaft , min- 1 less 2200 Min rotational speed of the output shaft , min -1 0 The maximum moment on the input shaft , N  м 600 The maximum moment on the output shaft , N  м 1700 Variator’s efficiency 0,9 0– 0,9 4 Adjusting of turnovers of an output shaft Stepless, without a break of a power flow Control system drive gear Automatic (transition to a manual mode is possible)

10. General view of construction MPV

11. THE BASIC TECHNOLOGICAL PARAMETERS AT MANUFACTURE МСВ Materials used for manufacture ст.40, ст.45, ст.40Х, ст.20 Degree of accuracy of details manufacture 7 Degree of accuracy of cones manufacture 8 Hardness of details HRC – 28 ,0 -38,5 HRC э – 45,0-57,0 Case hardening of details h = 0,7-1,2 мм Settlement specific loads on the basic relaying elements [Ϭ к ] = 8-15 кг/мм 2

12. Sample of experimental design of MPV Tractor variator

13. The sample of experimental construction МСВ

14. Patent protection of М PV Ukraine Russia Belorussia China Stand tests of MPV with automatic control Machines and systems institute ( IMIS ) г. Kharkov , Ukraine

15. Contacts Association « Ukrainian innovation companies » 49000, Ukraine , Dnepropetrovsk 81, Karl Marks Ave Tel/fax : +380 56 2 350080 web : www.auic.com.ua e-mail: [email_address] Contact person: Vice president of the Association , Dr . Alexander Pliskanovsky mobile : +380 50 4801703 e-mail: [email_address]