Contaminant Sensitivity Assessment of Electrohydraulic Valves

Paper #:
  • 891867

Published:
  • 1989-09-01
Citation:
Eleftherakis, J., "Contaminant Sensitivity Assessment of Electrohydraulic Valves," SAE Technical Paper 891867, 1989, https://doi.org/10.4271/891867.
Pages:
12
Abstract:
Electrohydraulic valves have seen increasing use in all fluid power applications, especially in the automotive field. This includes automobiles, heavy equipment, and all mobile equipment. Pulse width modulation (PWM) has been, and continues to be a popular choice for control in many applications. Common uses for such valves are in transmissions, anti-lock brake systems, electronic fuel injection systems, and active suspension systems. These broad application areas usually all have one common application limitation, use of a low force electromechanical valve actuator. This is most commonly an electric solenoid and often imparts less than one pound of force to actuate the valve.This use of low force valve actuators has thus magnified the effect that contaminants have on the valves. Compounded with this is the varying nature of field induced and generated contaminants. This paper thus investigates these type valves at length, provides analytical descriptions of and experience gained from many hundred experimental studies into valve contaminant service life, and presents data on the development of a new test contaminant which simulates that found in high mileage automotive-type transmissions.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$28.00
Mail
$28.00
Members save up to 42% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Standard
2013-01-18
Technical Paper / Journal Article
2005-11-01
Technical Paper / Journal Article
2005-11-01
Technical Paper / Journal Article
2005-11-01