Walvoil SXP combines advantages of both Series and Parallel circuits
WALVOIL SXP, the innovative directional valve for front loaders and other lifting applications. Walvoil SXP is an innovative directional valve designed for front loaders and other lifting applications. The main feature of new…
Standard Samples for Grinder Burn Etch Testing
Jonathan R. Crow and Michael A. Pershing, Caterpillar, Inc. This paper discusses a unique method of producing a sample for grinder burn etch testing. The method of producing the sample is described, and…
How characterizing the efficiency of agricultural machines
When speaking of quantification of the efficiency of a system, we mean the calculation of its thermodynamic efficiency, defined as the mathematical ratio between the input energy, i.e. the energy entering the considered…
Electric mobility, not only cars
The future mobility will be increasingly electric, for agricultural machines, too. Carlo Gorla, Politecnico di Milano DRITEV are the initials that this year identify the maxi-convention that VDI, the association of German engineers,…
Analysis of the kinematic chain for the motion transmission from the tractor to a rotary harrow
The present article illustrates the study of the kinematic chain between tractor and rotary harrow used for the motion transmission from the PTO to the tool. The study has focused also on the…
The new electro-hydraulic solutions can revitalize hydraulics
The analyses of the new market trends show that in the next future hydraulic and electric drives will increasingly merge. The fluid power sector is changing and big manufacturers have realized it. What…
Electro-hydraulic systems, potentialities and limits
It is common opinion that the integration with electric systems will play a relevant role in the future of hydraulics. What are, however, the characteristics of electro-hydraulic systems, what the achievable advantages and…
Friction phenomena in pneumatics
In this article, we are describing the friction phenomena in pneumatic components, discussing some modelling aspects and some energy and manufacturing implications. The friction phenomenon arises also in pneumatics, which performs motions, regulations,…
Bearing materials key to increased reliability
The use of application-specific bearing steels and surface treatments permits the reliability of bearings to be increased significantly, which in turn contributes to the reduction of machinery and equipment TCO (total cost of…
Hydraulic Fluids: Risks of fire and toxicity
Oil, which can be both mineral and synthetic, is the liquid generally used for the lubrication of the parts in motion and for the energy transmission. we are analysing the aspects connected with…
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