Proposal of a Mechanism to Restrict Pressure Change by Oil Temperature Change

Yasuo Sakurai; Takayuki Suzuki; Kenichi Aiba; Takamasa Yoshinari; Kiyotaka Kawashima; Kazuyuki Kihara

doi:10.20965/ijat.2012.p0502

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IJAT Vol.6 No.4 pp. 502-508

doi: 10.20965/ijat.2012.p0502

(2012)

Paper:

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Proposal of a Mechanism to Restrict Pressure Change by Oil Temperature Change

Yasuo Sakurai^1, Takayuki Suzuki^2, Kenichi Aiba^3,
Takamasa Yoshinari^3, Kiyotaka Kawashima^3,
and Kazuyuki Kihara^4

^*1Ashikaga Institute of Technology, 268-1 Oomae-cho, Ashikaga-shi, Tochigi 326-8558, Japan

^*2Bosch Rexroth Corporation, 5-1 Higashi-nakanuki-cho, Tsuchiura-shi, Ibaraki 300-8588, Japan

^*3Tokyo Keiki Corporation, 1-1 Sakae-cho, Sano-shi, Tochigi 327-0816, Japan

^*4Industrial Property Cooperation Center, 1-2-15 Kiba, Koto-ku, Tokyo 135-0042, Japan

Received:

January 25, 2012

Accepted:

April 19, 2012

Published:

July 5, 2012

Keywords:

oil-hydraulics, component, pressure-change, temperature-change, energy-saving

Abstract

One of the advantages of an oil-hydraulic system is that it keeps the value of its oil pressure when the pressurized oil is enclosed in a container. However, when the temperature of the oil changes, it is impossible to keep the value. If a pressure-control sub-system is used to prevent the pressure change, the whole system becomes complicated. In addition, energy is consumed when the pressure is adjusted by the quantity of oil flowing in or out of the container. From these view points, it would be useful if a component were developed which prevented the pressure change caused by the change in oil temperature without controlling the quantity of oil. Therefore, in this paper, a mechanism to prevent the pressure change caused by the oil temperature change is proposed to secure the advantages of the oil hydraulic system even when the temperature of the oil changes. And a component is fabricated to investigate the validity of the proposed mechanism. Its validity is investigated experimentally when the temperature of the oil increases and when the temperature of the oil decreases after it increases.

Cite this article as:

Y. Sakurai, T. Suzuki, K. Aiba, T. Yoshinari, K. Kawashima, and K. Kihara, “Proposal of a Mechanism to Restrict Pressure Change by Oil Temperature Change,” Int. J. Automation Technol., Vol.6 No.4, pp. 502-508, 2012.

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References

[1] T. Fujita, M. Sai, and T. Kagawa, “Energy Consumption of Pneumatic System with a Pneumatic Cylinder and Comparison with Electric Actuator,” J. of The Japan Fluid Power System Society, Vol.34, No.2, pp. 125-130, 2003. (in Japanese)
[2] T. Sakamoto, “A Specific Phenomenon in Oil-hydraulic Equipment for Heavy Lifts Energy,” Hydraulics & Pneumatics, Vol.41, No.1, pp. 43-47, 2002. (in Japanese)
[3] S. Norouzi, S. R. Mofrad, “What You Should Know about Liquid Thermal Expansion,” Hydrocarbon Process, Vol.87, No.11, pp. 67-69, 2008.
[4] “Pocketbook of Oil-hydraulics,” Japan Fluid Power Association, pp. 206-207, 2001. (in Japanese)
[5] T. Kazama, “Physical Property of Hydraulic fluid and Numerical Analysis by Thermo-Hydrodynamic Lubrication Theory,” Hydraulics and Pneumatics, Vol.47, No.13, pp. 9-13, 2008. (in Japanese)

This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.

[1] [1] T. Fujita, M. Sai, and T. Kagawa, “Energy Consumption of Pneumatic System with a Pneumatic Cylinder and Comparison with Electric Actuator,” J. of The Japan Fluid Power System Society, Vol.34, No.2, pp. 125-130, 2003. (in Japanese)

[2] [2] T. Sakamoto, “A Specific Phenomenon in Oil-hydraulic Equipment for Heavy Lifts Energy,” Hydraulics & Pneumatics, Vol.41, No.1, pp. 43-47, 2002. (in Japanese)

[3] [3] S. Norouzi, S. R. Mofrad, “What You Should Know about Liquid Thermal Expansion,” Hydrocarbon Process, Vol.87, No.11, pp. 67-69, 2008.

[4] [4] “Pocketbook of Oil-hydraulics,” Japan Fluid Power Association, pp. 206-207, 2001. (in Japanese)

[5] [5] T. Kazama, “Physical Property of Hydraulic fluid and Numerical Analysis by Thermo-Hydrodynamic Lubrication Theory,” Hydraulics and Pneumatics, Vol.47, No.13, pp. 9-13, 2008. (in Japanese)

Proposal of a Mechanism to Restrict Pressure Change by Oil Temperature Change

Yasuo Sakurai*1, Takayuki Suzuki*2, Kenichi Aiba*3, Takamasa Yoshinari*3, Kiyotaka Kawashima*3, and Kazuyuki Kihara*4

Yasuo Sakurai^1, Takayuki Suzuki^2, Kenichi Aiba^3,
Takamasa Yoshinari^3, Kiyotaka Kawashima^3,
and Kazuyuki Kihara^4