What is Hydraulic Transmission Oil? Is hydraulic transmission oil a hydraulic fluid?

1. Hydraulic transmission oil, also known as automatic transmission oil (ATF) or automatic transmission oil, is used as a working medium in the vehicle automatic transmission composed of hydraulic torque converter, fluid coupling and mechanical transmission, and plays the role of transmitting energy with the help of the kinetic energy of the liquid.

Second, the characteristics of hydraulic transmission oil.

1. Suitable viscosity and good viscosity and temperature performance to ensure the normal operation of the hydraulic transmission device in the temperature range of -40 170.

2. Good anti-wear performance to ensure that all kinds of hydraulic transmission parts of different materials are not easy to be worn under operating conditions.

3. Good thermal stability and antioxidant stability, so as to adapt to long-term cycle use under the working conditions of 70 140 (or even higher).

4. Good low-temperature fluidity and low freezing point to adapt to the working conditions of mechanical opening and stopping and winter operation.

5. Good foam resistance, so that the foam generated by the oil under the working conditions of continuous mechanical stirring is easy to disappear. So as not to reduce the efficiency of the torque converter and make the shift malfunction.

3. Performance requirements.

1. Viscosity: From the perspective of typical hydraulic transmission oil, the use temperature range is about -25 170, which requires the oil to have a high viscosity index and a low freezing point, and the general specifications stipulate that the viscosity index is above 170, the pour point is -40, and the synthetic oil is 190 and -50.

2. Thermal oxidation stability: the temperature of the hydraulic transmission oil of the car during driving varies with the different driving conditions of the car. The sludge and paint film generated by oxidation when the oil temperature rises will cause the hydraulic system to work abnormally, the lubrication performance will deteriorate, and the metal will corrode.

3. Shear stability: When the hydraulic transmission oil transmits power in the torque converter, it will be subjected to strong shear force, which will break the polymer compounds such as viscosity index improvers in the oil, reduce the viscosity of the oil, reduce the oil pressure, and finally cause the clutch to slip.

4. Anti-foaming performance: After foam is mixed in the hydraulic transmission oil, it will cause the oil pressure to decrease, resulting in clutch slippage, sintering and other accidents.

5. Friction characteristics: The automatic transmission fluid requires matching static friction coefficient and dynamic friction coefficient to adapt to the different requirements of the friction coefficient when the clutch shifts.

Fourth, use. No. 6 Hydraulic Transmission Oil: Mainly used for hydraulic torque converters and fluid couplings for large vehicles such as diesel locomotives, heavy-duty trucks, tracked vehicles, and off-road vehicles. It can also be used in the hydraulic transmission system of construction machinery.

No. 8 Hydraulic Transmission Oil: Mainly used in the hydraulic automatic transmission system of various cars and light trucks.

It is automatic transmission oil (ATF) or automatic transmission oil, which is used as a working medium in the vehicle automatic transmission composed of torque converter, fluid coupling and mechanical transmission, and uses the kinetic energy of the liquid to transmit energy.

It is actually a high-quality hydraulic fluid that has a higher viscosity index, thermo-oxidative stability and wear resistance, and a higher level of cleanliness.

Hydraulic transmission oil is hydraulic fluid. Hydraulic transmission oil and hydraulic oil can be substituted for each other. This is due to the fact that transmission oil and hydraulic oil are the same, and there is not much essential difference between them.

Hydraulic transmission oil, also known as automatic transmission fluid (ATF) or automatic transmission oil, is a very vital medium in the vehicle automatic transmission composed of torque converter, fluid coupling and mechanical transmission, which can play the role of energy transmission with the help of the kinetic energy of the liquid.

Characteristics of hydraulic fluidsHydraulic oil is a working medium that transmits energy or power by means of the pressure energy of the liquid in a closed volume. On the one hand, the role of hydraulic oil is to realize the energy transfer, conversion and control of the working medium, on the other hand, it also plays the role of lubrication, rust prevention, cooling, shock absorption and so on. It should meet the requirements of the liquid viscosity of the hydraulic device at the working temperature and the starting temperature, because the viscosity change of the oil is directly related to the hydraulic action, transmission efficiency and transmission accuracy.

1. Differences in application.

Hydraulic fluids are suitable for various types of hydraulic systems in manufacturing and industry; mobile hydraulic drivetrains; It is suitable for marine hydraulic systems where the use of isohm hydraulic fluids is recommended.

The No. 6 hydraulic transmission oil in the hydraulic transmission oil is used for hydraulic torque converters and hydraulic couplings of large vehicles such as diesel locomotives, heavy-duty trucks, tracked vehicles, and off-road vehicles. It can also be used in the hydraulic transmission system of construction machinery. No. 8 Hydraulic Transmission Oil: Mainly used in the hydraulic automatic transmission system of various cars and light trucks.

2. Differences in meaning.

Hydraulic oil is the hydraulic medium used in hydraulic systems that utilize the pressure energy of liquids.

Hydraulic transmission oil, also known as automatic transmission oil or automatic transmission oil, is used as a working medium in vehicle automatic transmissions.

3. Differences in performance.

The hydraulic oil has suitable viscosity and good viscosity and temperature performance to ensure that the power can be transmitted accurately and sensitively under the condition of changing working temperature; It has good rust resistance and oxidation stability, and is not easy to oxidize and deteriorate under high temperature and high pressure conditions; It has good anti-foaming properties, so that the foam produced by the oil is easy to disappear under the working condition of continuous stirring by machinery to make the power transmission stable.

The hydraulic transmission oil has suitable viscosity and good viscosity and temperature performance to ensure the normal operation of the hydraulic transmission device in the temperature range of 40 170; Good anti-wear to ensure that all kinds of hydraulic transmission parts of different materials are not easy to be worn under operating conditions; Good thermal stability and oxidation stability to adapt to long-term cycling under working conditions of 70 140 (or even higher).

Hydraulic transmission oil is generally used in hydraulic transmission mechanism, mainly used for control components; Hydraulic oil is generally used in hydraulic cylinders. The difference is the viscosity.

They all use liquid as the transmission medium to transfer energy. The hydraulic transmission medium used in the hydraulic system using hydraulic pressure is usually called hydraulic oil; The medium used in the transmission system that uses liquid kinetic energy to transfer energy is called hydraulic transmission oil. These two oils have different requirements for oil performance.

The requirements for hydraulic transmission oils tend to be stricter than those for hydraulic fluids. Jiangsu Anda Lubricating Oil **** has strict production requirements for each lubricating oil.

In the same way, hydraulic oil is the working medium used to transmit movement and power.

There is only a difference between density and viscosity of hydraulic oil, and the types of hydraulic oil are divided into three categories, petroleum type, synthetic type, and emulsion type.

The difference between hydraulic transmission oil and hydraulic oil. Hello dear, the difference between hydraulic transmission oil and hydraulic transmission oil: the difference in the application of the group:

Hydraulic oil is mainly used in hydraulic systems such as pumps, motors, cylinders, etc. Hydraulic transmission fluids are mainly used in torque converters, power shift transmissions (including gears, bearings, wet clutches and hydraulic systems). Differences in how it works:

The main role of hydraulic oil is to act as a medium to transmit power, and the basic principle is Pascal's principle, that is, the pressure of all aspects of the ideal fluid is equal; At the same time, it also acts as a lubricant to provide anti-wear protection for pumps, valves and other components. The main function of hydraulic transmission oil is to provide anti-wear protection for gears, bearings and hydraulic components in the power shift gearbox, to provide suitable friction properties for wet clutch friction plates, and also as a hydraulic medium for torque converters and hydraulic systems. The difference between popular descriptions:

Although the names of the two are very similar, the difference is the essential difference. One is "pressure" and the other is "force"; It can be described as one that transmits pressure and one that transmits force. Therefore, according to the change of the area before and after the transmission, the hydraulic oil is used to achieve the effect of transmitting pressure and amplifying the pressure, which belongs to a static transmission; Hydraulic transmission oil uses the friction transmission force of the fluid, which is a kind of dynamic transmission.

The difference in performance: the high and low temperature viscosity and working temperature, thermal oxidation stability, anti-wear and extreme pressure of hydraulic transmission oil are better than hydraulic oil, especially the retention of friction characteristics requires better performance, so hydraulic oil can not be used as a substitute for hydraulic transmission oil. Hope my answer is helpful to you, <>

Hydraulic oil is actually a high-quality hydraulic fluid with a high viscosity index, thermal-oxidative stability, wear resistance, and high cleanliness.

The role of hydraulic transmission oil:

Hydraulic transmission oil, also known as automatic transmission oil (ATF) or automatic transmission oil, is used as a working medium in a vehicle automatic transmission composed of a torque converter, a fluid coupling and a mechanical transmission, and uses the kinetic energy of the liquid to transmit energy.

Use of Hydraulic Transmission Oil:

No. 6 hydraulic transmission oil: mainly used for torque converters and hydraulic couplings of diesel locomotives, heavy trucks, crawler vehicles, off-road vehicles and other large vehicles. It can also be used in the hydraulic transmission system of construction machinery.

No. 8 hydraulic transmission oil: mainly used in the hydraulic automatic transmission system of various cars and light trucks.