System Maintenance:
There may be intermittent impact on performance while updates are in progress. We apologize for the inconvenience.
By Topic

Model of a Four-Position Unbalanced Hydraulic Valve

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)

The present paper proposes and models a four-position unbalanced valve that was introduced by the author in 2006 [1] in a hydraulic system used to save and recover braking power. The valve modulates the oil flow from a free-wheeling mode to braking-and-storing energy, to full braking, to recovering energy and accelerating a load. The valve design achieves this by combining the operating characteristics of the sliding and the rotary operation. The key goals of the present analysis are to demonstrate that the four-position operation is attainable, and to evaluate the valve stability during the transient and the steady state modes of operation and compare it with the stability of the conventional stepped-spool valves. The normal, freewheeling position of the valve is determined by locating its spool in between the two springs of unequal stiffness, thus making it “unbalanced”. The solid model of the proposed design is presented and analysed here.

Published in:

Computer Modeling and Simulation, 2008. UKSIM 2008. Tenth International Conference on

Date of Conference:

1-3 April 2008