8 Stroke Engine

Topics: Internal combustion engine, Six-stroke engine, Connecting rod Pages: 2 (284 words) Published: October 10, 2011

The quest for an engine which having the same or more power with higher fuel efficiency than the existing ones has started before many years. As a result of all these researches a new engine concept is formed, which is a six stroke engine. Lot of research works are conducting on this topic nowadays and already six types of six stroke engines were discovered yet. Of these the resent developed three six stroke engines, i.e., Beare head, Bruce crowers and Velozeta’s are undergoing tremendous research works.

During every cycle in a typical four stroke engine, piston moves up and down twice in the chamber, resulting in four total strokes and one of which is the power stroke that provides the torque to move the vehicle. But in a six stroke engine there are six strokes and out of these there are two power strokes. The automotive industry may soon be revolutionized by a new six-stroke design which adds a second power stroke, resulting in much more efficiency with less amount of pollution.


1. Introduction

2. Symbols used

3. History of six stroke engines

4. Velozeta’s six stroke engine

1. Theory

2. Engine Parts Modified

3. Working

4. Performance test results

4.4.1. Load test results

4.4.2. Pollution test results

5. Graphs

6. Advantages

5. Conclusion

6. References


The term six stroke engine describes two different approaches in the internal combustion engine, developed since the 1990s, to improve its efficiency and reduce emissions

In the first approach, the engine captures the waste heat from the four stroke Otto cycle or Diesel cycle and uses it to get an additional power and exhaust stroke of...
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