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Improvement of power output in hydraulic systems
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A power output, hydraulic system technology, used in transportation and packaging, petroleum industry, thin material handling, etc., can solve problems such as increased cost and high energy consumption, and achieve improved low temperature performance, improved stability, and good shear stability. Effect
Inactive Publication Date: 2010-03-31
EVONIK ROHMAX ADDITIVES GMBH
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However, such approaches usually entail high energy consumption and increased cost, and are often constrained by space or weight constraints
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Embodiment 1 and 2 and comparative Embodiment 1
[0143] Operate the Denison T6C Portable Impeller Pump under the following controlled conditions:
[0145] Running ISO VG 46HM oil as the reference fluid produced 6.97kW of hydraulic power.
[0146] By way of comparison, several ISO VG 46HV oils operated under the same conditions and produced 6 to 11% higher levels of hydraulic power output, as shown in Table 1.
[0151] Operate the Eaton-Vickers V20 impeller pump under the following controlled conditions:
[0152] Speed = 1200 rpm, pressure = 138 bar, fluid temperature = 80°C.
[0153] ISO VG 46HM oil was run as the reference fluid, producing 8.69kW of hydraulic power.
[0154] By way of comparison, several ISO VG 46HV oils operated under the same conditions and produced 3 to 6% higher levels of hydraulic power output, as shown in Table 2.
[0161] ISO VG 46HM oil was run as the reference fluid, producing 8.35kW of hydraulic power.
[0162] By way of comparison, several ISO VG 46HV oils operated under the same conditions and produced 5 to 7% higher levels of hydraulic power output, as shown in Table 3.
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Abstract
The present invention describes use of a fluid having a VI of at least 130 to improve the power output of a hydraulic system. Preferentially, engine speed can be maintained at the same rate selected while using the standard HM oil, and deliver >3% higher hydraulic power output.
Description
field of invention [0001] The present invention relates to a method of increasing hydraulic pump and engine power output by using a high viscosity index hydraulic fluid. Using such fluids can increase the power output of the system without any changes to the hardware. technical background [0002] Hydraulic systems are designed to transmit energy and apply high forces with a high degree of flexibility and control. Configurations that efficiently convert input energy from an engine, electric motor, or other source to usable work are desirable. Hydraulic power can be used to generate rotary or linear motion, or to store energy in accumulators for future use. Hydraulic systems provide a significantly more precise and adjustable means of transferring energy than electrical or mechanical systems. Generally, hydraulic systems are reliable, efficient and cost-effective, making them widely used in the industrial world. The fluid power industry is constantly improving the cost ef...
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