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Automatic transmission fluid (ATF) is a hydraulic fluid that is essential for the proper functioning of vehicles equipped with automatic transmissions. Usually, it is coloured red or green to differentiate it from motor oil and other fluids in the vehicle. This fluid is designed to meet the unique demands of an automatic transmission.
On a very basic level, the SH-AWD system is a combination of the Honda Variable Torque Management 4WD (VTM-4) automatic all-wheel-drive system and the Active Torque Transfer System (ATTS) variable torque distribution system. Honda introduced the ATTS technology in the 1997 Honda Prelude Type SH.
Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...
A fluid coupling consists of three components, plus the hydraulic fluid: The housing, also known as the shell [5] (which must have an oil-tight seal around the drive shafts), contains the fluid and turbines. Two turbines (fanlike components): One connected to the input shaft; known as the pump or impeller, [5] or primary wheel input turbine. [5]
This fluid specification change provided better oxidation control, anti-wear performance, and higher static capacity capabilities were also included. Oxidation control of the fluid was measured by a new Merc-O-Matic oxidation test. This fluid was first used in the following transmissions: 1964 C-4 3-Speed automatic transmission
While centrifugal pumps impart momentum to the fluid by motion of blades, positive displacement pumps transfer fluid by variation in the size of the pump’s chamber. Centrifugal pumps can be of rotor or propeller types, whereas positive displacement pumps may be gear-based, piston-based, diaphragm-based, etc.
GM DEXRON (B)-licensed products have a license number on the container that begins with the letter B. Example: B10001. This fluid is backward compatible with all Type "A" suffixes and the Type "A" fluids produced from 1949 to 1966. This fluid was first used in the following transmissions: 1969 GM Hydra-Matic 180 3-Speed Automatic Transmission
If it is at a sharp angle, a large volume of fluid will be pumped. Some pumps allow the swashplate to be moved in both directions from the zero position, pumping fluid in either direction without reversing the rotation of the pump. An efficient variation is the bent axis pump. Bending the axis reduces side loads on the pistons.