AMIS is the primary source of providing automated movement and identification solutions across the DOD and around the globe. AMIS is the essential supplier for Transportation Coordinators' - Automated Information for Movements System II (TC-AIMS II) with approximately 5,000 active users. tc-aims ii TC-AIMS II is designed to enable users to manage all aspects of transportation operations.
A four-stroke engine (also known as four-cycle) is an internal combustion engine in which the piston completes four separate strokes which comprise a single thermodynamic cycle. A stroke refers to the full travel of the piston along the cylinder, in either direction. The four separate strokes are termed: INTAKE: this stroke of the piston begins at top dead center. The piston descends from the top of the cylinder to the bottom of the cylinder, increasing the volume of the cylinder. A mixture of fuel and air is forced by atmospheric (or greater) pressure into the cylinder through the intake port.
1 Two-stroke engines can work in any orientation, which can be important in something like a chainsaw. 2  A standard four-stroke engine may have problems with oil flow unless it is upright, and solving this problem can add complexity to the engine.ou find two-stroke engines in such devices as chain saws and jet skis because two-stroke engines have three important advantages over four-stroke engines: 1  Two-stroke engines do not have valves, which simplifies their construction and lowers their weight.