Which company discover the SIX STROKE ENGINE?

Question

Alan Bellows DISCOVER THE SIX STROKE ENGINE. FOR WHICH COMPANY IS IT NISSAN

Answer 1

“Beare Head”
The “Beare Head” known after its designer, uses a piston and ports very much like a two stroke engine to replace the over head valve system that is found in four stroke engines today. The four stroke block, pistons and crankshaft remain unaltered. This combination of two stroke and four stroke technology has given the engine its name – the “six stroke engine” (2 + 4 = 6). Below the cylinder head gasket everything is the same – but cylinder head and poppet valves get thrown away. To replace the camshaft and the valves the cam drive belt has been retained and fitted with an ultra short stroke upper crankshaft complete with piston, which the belt drives at half the engine speed just as it previously drove the cam. This piston drives up and down in a sleeve, past inlet-exhaust ports set into the cylinder wall, opening guided by a rotary disk valve. This technology is owned by an Australian company, Jack Brabham Engines Limited.
“Bajulaz six stroke engine”
The Bajulaz six stroke engine is similar to an actual IC engine in design. The modification goes in the cylinder head for which two supplementary chambers – a combustion chamber and an air preheating chamber have been provided. The combustion occurs in a totally enclosed chamber (isochoric), thereby increasing the thermal efficiency. The advantages include reduction in fuel consumption by at least 40%; two expansion strokes (work) in six strokes, Multi-fuel usage and dramatic reduction in pollution.
“Six-stroke engine (Trivandrum)”
In the six-stroke engine developed by the students of College of Engineering, Trivandrum, India, the first four strokes are the same as a four stroke internal combustion engine. After the exhaust stroke, instead of air/fuel mixture (as in case of petrol engines) fresh air is sucked into the cylinder from the air filter, and is removed during the sixth stroke.The valve overlaps have been removed and the additional two strokes have been provided for better scavenging, using air injection.The engine shows 40% reduction in fuel consumption and dramatic reduction in pollution. Its specific power is not less than that of a four-stroke petrol engine. The engine can run on almost any fuel, petrol and diesel to LPG. An altered engine shows a 65% reduction in CO pollution when compared with the four stroke engine that was used to develop the Six-Stroke Engine.
“Crower's six stroke engine”
In the six-stroke engine patented in the U.S. by Bruce Crower, after the exhaust stroke, fresh water is injected into the piston, and is quickly turned to superheated steam, which causes the water to expand to 1600 times its volume and forces the piston down for an additional stroke.[1]
Inventors
Bajulaz Six Stroke Engine
Bajulaz S A , Switzerland.
Crower's Six Stroke Engine
The 75 year old inventor - Bruce Crower is the person behind this hybrid cycle six stroke engine
Trivandrum, India team
The Team includes Aaron Joseph George, Arun K Nair, Boby Sebastian and Krishnaraj U. It took them almost two years to develop the engine. A four-stroke Honda engine was experimentally altered to build the new one.Former Honda chief technician Anil CC assisted the project.The idea regarding the modification was proposed and practiclly implemented by Anil while the students formulated the theories and helped develop the engineering aspects of the IC engine.

Volvo produced straight-6 engines 1969-1975 and 1992-1998.
Opel has also used a straight-6 engine in the 1970s - 1990s
In 1959, Saab had an experimental car with two transverse straight-3 engines bolted together — the Saab Monster.
straight-6 was the archetypal British engine for sports and luxury cars for many years. Rolls-Royce used straight-6 engines until changes in their design made the shorter V8 layout more suitable.
Jaguar used them, from 1949 until the mid 1980s in form of the legendary twin-camshaft Jaguar XK engine, until, at Ford's insistence, they adopted a V8. Aston Martin used
The compact Triumph straight-6 powered their high-end saloon and sports cars from the mid 1950s to the mid 1970s. It was available in 2.0L and 2.5L capacities. Triumph claimed that their TR5 model was the first car in the UK to
Chrysler in the 1960
American Motors 1960

check wikipedia.org

Answer 2

Crower Six Stroke Engine

Answer 3

Six stroke engines are more bulky than a four stroke so would not be ideal for bikes, I would suspect that a cleaner two stroke would be a better idea.