The term six-stroke engine has been applied to a number of alternative internal combustion engine designs that attempt to improve on traditional two-stroke and four-stroke engines. Claimed advantages may include increased fuel efficiency, reduced mechanical complexity, and/or reduced emissions. These engines can be divided into two groups based on the number of pistons that contribute to the six strokes.
The pistons in this type of six-stroke engine go up and down three times for each injection of fuel. These designs use either steam or air as the working fluid for the additional power stroke.Six-stroke engine generally sound like a Four-stroke engine sound of exhaust, probably because the piston and cylinder no exist lower than cold temperature because use water injection and water injected no reach lower than cold temperature or just repeat intake stroke and exhaust stroke.
These designs use a single piston per cylinder, like a conventional two- or four-stroke engine. A secondary, nondetonating fluid is injected into the chamber, and the leftover heat from combustion causes it to expand for a second power stroke followed by a second exhaust stroke.
Six-stroke engine is generally are lower than cold temperature (warm-like and cool-like temperature), Six-stroke engine how to work:
- Combustion (similar like four-stroke combustion temperature)
- First expansion with lower than cold temperature (warm-like temperature)
- Second expansion with second lower than cold temperature (lower than first expansion temperature, cool-like temperature)