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Compositions of working fluids for hydrostatic mechanical power split transmissions

A technology of mechanical power and transmission, applied in lubricating compositions, petroleum industry, etc., can solve problems such as peaks that cannot improve efficiency, and achieve the effects of reducing wear, smooth transmission, and preventing sintering

Active Publication Date: 2016-04-13
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The addition of a mechanical transmission widens the available high-efficiency zone of the entire powertrain, but it does not increase the peak efficiency

Method used

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  • Compositions of working fluids for hydrostatic mechanical power split transmissions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] It is formed by blending the following components in mass percentage:

[0022]

Embodiment 2

[0024] It is formed by blending the following components in mass percentage:

[0025] components

Embodiment 3

[0027] It is formed by blending the following components in mass percentage:

[0028] components

Mass percentage content

The mass ratio is 47% natural gas-to-liquid (GTL) and 53% trimethylol propane compound

75.995％

Mass ratio 55% N-phenyl-α-naphthylamine and 45% 2,6-di-tert-butyl mixed ester complex

1.5％

3 --> Combination of 35% triethyl phosphate, 35% aminothioester and 30% nitrogen-containing derivatives of sulfuric acid

7％

Mass ratio of 45% butyl stearate and 55% vulcanized cottonseed oil

5％

Composite with 55% methyl silicone oil (T901) and 45% acrylate and ether copolymer

0.005％

Ethylene oxide propane block polyether (T1002)

1.0％

The mass ratio of 35% is composed of barium petroleum sulfonate, 35% sodium petroleum sulfonate and 30% benzotriazole

2.0％

The mass ratio is 95% phosphoric acid ester and 5% alkyl molybdenum thiophosphate composite

2.0％

Tungsten dialkyldithioc...

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Abstract

The invention discloses a hydrostatic mechanical power diversion transmission gear working fluid composition which uses a natural gas synthetic oil (GTL) / trimethylolpropane ester compound as base oil and is matched with multiple composite additives. The composite additives comprise antiwear additive, rust inhibitor, antioxidant, antifoam agent, demulsifying compound, metal passivator, reinforcing agent, oily agent, friction improver, dispersing agent and the like. The composition has proper viscosity, favorable viscosity-temperature characteristics, favorable low-temperature fluidity, favorable shear stability, favorable viscosity-slip characteristic, favorable lubricating property, favorable cooling property, favorable rust resistance, favorable adaptability to the sealing material, favorable antifoaming property, favorable filterability, favorable demulsibility, favorable clean property, favorable air release characteristic, high thermal oxidation stability, high hydrolytic stability, favorable extreme pressure abrasion resistance, sintering resistance and high transmission stability, and is beneficial to lowering the abrasion and impact load and reducing the vibration and noise.

Description

technical field [0001] The invention belongs to the field of mechanical hydraulic and gear transmission lubricants, in particular to the composition of the working fluid of hydrostatic mechanical power split transmission devices. Background technique [0002] A hydrostatic mechanical power split transmission system is considered to be a transmission system in which hydraulic and mechanical devices are "parallel" and transmit power flow separately. Usually the power flow from the engine into the transmission system is divided into two paths: one is the hydraulic power flow transmitted by the purely hydrostatic drive, and the other is the purely mechanical power flow transmitted by the purely mechanical means, and then the two paths are combined and transmitted to the walking gear. This technology organically combines the good performance of hydrostatic drive stepless speed regulation and the high steady-state efficiency of mechanical rotation, in order to obtain a stepless s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N40/08C10N30/06C10N30/10C10N30/12C10N30/18
Inventor 黄福川李康春莫宇飞卢朝霞黄孝平邓富康黄伊琳马骁飞刘宇恒陈彪黄旖瑶
Owner GUANGXI UNIV
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