Research and Development (R&D) on Advanced Nonstructural Materials. Delivery Order 0001: Study of Hydraulic System Component Storage With Operational and Rust-Inhibited Hydraulic Fluids

2004 ◽  
Author(s):  
Lois J. Gschwender ◽  
Carl E. Snyder Jr ◽  
Shashi K. Sharma ◽  
Tim Jenney ◽  
Angela Campo
Keyword(s):  
Research And Development ◽  
Hydraulic System ◽  
System Component ◽  
Hydraulic Fluids

Hydraulic System Component Storage with Military Hydraulic Fluids

2006 ◽  
Vol 49 (1) ◽  
pp. 46-52 ◽  
Author(s):  
Lois J. Gschwender ◽  
Carl E. Snyder ◽  
Shashi K. Sharma ◽  
Tim Jenney ◽  
Angela Campo ◽  
...  
Keyword(s):  
Hydraulic System ◽  
System Component ◽  
Hydraulic Fluids

Ensuring the Reliability of an Aircraft Engine Hydraulic System

2014 ◽  
Vol 616 ◽  
pp. 126-134 ◽  
Author(s):  
Janka Mihalčová ◽  
Peter Šmeringai
Keyword(s):  
Hydraulic System ◽  
Kinematic Viscosity ◽  
Chemical Properties ◽  
Aircraft Engine ◽  
Hydraulic Fluid ◽  
Aircraft Engines ◽  
Ftir Analysis ◽  
Physical Chemical ◽  
Hydraulic Fluids ◽  
Degradation Degree

The article deals with the issue of ensuring the reliability of aircraft engines operation via hydraulic fluids properties monitoring. There are presented the results of the hydraulic fluid Aero Shell Fluid 41 (ASF 41) properties evaluation in the hydraulic system of a double-flow turbosupercharged aircraft engine AI-25TL. In the hydraulic fluid, there were observed the quantity and distribution of mechanical particles according to their size in accordance with the ISO Cleanliness Code, ISO 4406.There was also determined kinematic viscosity according to the standard EN ISO 3104+AC. FTIR analysis of the infrared spectrum was used to determine the degradation degree of the hydraulic fluid physical-chemical properties.

scholarly journals Performance parameters monitoring of the hydraulic system with bio-oil

2014 ◽  
Vol 60 (Special Issue) ◽  
pp. S37-S43 ◽  
Author(s):  
I. Janoško ◽  
T. Polonec ◽  
S. Lindák
Keyword(s):  
Hydraulic System ◽  
Performance Parameters ◽  
Hydraulic Systems ◽  
Hydraulic Pump ◽  
Significant Deterioration ◽  
Environment Friendly ◽  
Bio Oil ◽  
Hydraulic Fluids ◽  
Contact Sensor ◽  
The Impact

In environmental terms, hydraulic fluids used in the hydraulic system of municipal vehicles represent problems related to a potential leakage from the system into the environment and the subsequent contamination of groundwater and soil. More environment-friendly way is to use green hydraulic fluids that are biodegradable in accidents. This paper aims to investigate the possibilities of biodegradable oil application and its adaptation in the hydraulic systems of municipal vehicles by monitoring the impact of the bio-oil Mobil EAL 46 ESSO on the performance parameters as flow, efficiency, durability, etc. Hydraulic pump revolutions were measured using a non-contact sensor based on the principle of magnetic induction change. Method of tightness monitoring was used to achieve results for functionality and wear of the hydraulic system. During 600 h of the test period no significant deterioration of performance parameters was detected. Results are useful for companies involved in waste collection.

Research and Development of the Hydraulic Cylinder Control System on FIX

2011 ◽  
Vol 339 ◽  
pp. 167-170
Author(s):  
Chun Mei Wang ◽  
Hong Li ◽  
Shi Qiang Zhou ◽  
Chun Hua Xie
Keyword(s):  
Control System ◽  
Research And Development ◽  
Data Processing ◽  
Hydraulic System ◽  
Hydraulic Cylinder ◽  
Industrial Control ◽  
Speed And Accuracy

In this article, making use of FIX industrial control soft, introduce the test principle signal data processing and property analyzing of the hydraulic cylinder by the help of the computer.It has greatly enhanced the speed and accuracy of detection for hydraulic components and hydraulic system, and also given a promise to assure the design and maintenance successfully.

Study of Hydraulic System Component Storage with a Rust Inhibited Barium Free Development Hydraulic Fluid Candidate

2006 ◽  
Author(s):  
Lois J. Gschwender ◽  
Angie Campo ◽  
Carl E. Snyder ◽  
Shashi K. Sharma ◽  
Tim Jenney ◽  
...  
Keyword(s):  
Hydraulic System ◽  
System Component ◽  
Hydraulic Fluid ◽  
Free Development

Improving Hydraulic System Energy Efficiency With High-Performance Hydraulic Fluids

2014 ◽  
Vol 50 (2) ◽  
pp. 1313-1321 ◽  
Author(s):  
Franklin L. Quilumba ◽  
Lyndon K. Lee ◽  
Wei-Jen Lee ◽  
Alan Harding
Keyword(s):  
Energy Efficiency ◽  
Hydraulic System ◽  
High Performance ◽  
Hydraulic Fluids ◽  
System Energy

scholarly journals Study of Energy Efficiency Characteristics of a Hydraulic System Component

2020 ◽  
Author(s):  
Alamgir Choudhury ◽  
Prajna Paramita ◽  
Jorge Rodriguez
Keyword(s):  
Energy Efficiency ◽  
Hydraulic System ◽  
System Component

scholarly journals The importance of the electrical properties of hydraulic fluids

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Darko Lovrec ◽  
Vito Tič
Keyword(s):  
Electrical Properties ◽  
Hydraulic System ◽  
Basic Material ◽  
Hydraulic Fluid ◽  
Content Type ◽  
Mineral Oils ◽  
Ionic Fluids ◽  
Hydraulic Fluids ◽  
Conductive Properties ◽  
Degree Of Degradation

Purpose Apart from the basic material properties of liquid lubricants, such as, e.g., the viscosity and density of the hydraulic fluid, it is also important to have information regarding the electrical properties of the fluid used. The latter is closely related to the purpose, type, structure, and conditions of use of a hydraulic system, especially the powertrain design and fluid condition monitoring. The insulating capacity of the hydraulic fluid is important in cases where the electric motor of the pump is immersed in the fluid. In other cases, on the basis of changing the electrical conductive properties of the hydraulic fluid, we can refer its condition, and, on this basis, the degree of degradation. Design/methodology/approach The paper first highlights the importance of knowing the electrical properties of hydraulic fluids and then aims to compare these properties, such as the breakdown voltage of commonly used hydraulic mineral oils and newer ionic fluids suitable for use as hydraulic fluids. Findings Knowledge of this property is crucial for the design approach of modern hydraulic compact power packs. In the following, the emphasis is on the more advanced use of known electrical quantities, such as electrical conductivity and the dielectric constant of a liquid. Originality/value Based on the changes in these quantities, we have the possibility of real-time monitoring the hydraulic fluid condition, on the basis of which we judge the degree of fluid degradation and its suitability for further use.

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