It is a bit long though.
I'd post a link but don't know how
Product: The Beare Head
A new four stroke engine head design known as the “Beare Head” after its designer Malcolm Beare. The Beare Head 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).
The Beare Head is a completely new development of the internal combustion engine in that it is a new design for the head and valve operation – not an entire engine. It should be easier for manufacturers to incorporate into their existing operation than an entirely new engine design.
The prototype six stroke engines already produced have been the subject of extensive testing and theoretical analysis. Key attributes of a six stroke engine include:
Increased power
Increased torque
Fewer, lighter, reciprocating parts
Simpler manufacture
With approximately 100 million engines manufactured in the world annually the possibilities for Jack Brabham Engines is outstanding. The rapidly expanding market in motorcycles, automobiles and other powered products, in South East Asia and China in particular, means Jack Brabham Engines has excellent scope to grow.
The Beare Head design is well protected by international patents and as these patents will be core to the success of the company, considerable effort will be expended in further protecting them.
While not attempting to describe the complex working and design of an engine head the following paragraphs give a few more insights into some of the issues associated with the Beare head:
In a six stroke engine the energy absorption is less because of slower acceleration of reciprocating parts The piston speed of the upper piston is about a quarter of the main piston; therefore its service life should be at least twice that of the main piston.
In the Beare design, per single cylinder, the number of parts is 15 compared to a four stroke of approx 40 to 50 parts. Also, to reduce manufacturing costs the head and block can be machined in one piece.
For the technically minded, the bottom piston is a standard design and the Beare Head bolts directly onto the engine block, replacing the standard head with its conventional overhead valves.
· It reduces the weight and complexity of the engines head by as much as 50%. Instead of using energy to drive the head, the head actually develops energy for conversion to power back through the timing chains of an engine.
· Torque is increased by up to 35% with a similar increase in efficiency. This can be achieved by simply unbolting an existing head of a four-stroke engine and then bolting on a Beare Head.
· increased torque and power output
· better fuel economy and cleaner burning Longer service intervals and considerably reduced tooling costs when compared with a conventional OHC four-stroke design.
Product: Pulse Fuel Injector and Nozzle
Unlike conventional fuel injectors this technology uses compressed air to atomise liquid fuel and pre-mix it with air. The process has an advantage because it allows some vaporization to take place in the atomising air. This creates a very fast flame speed that results in lower pollution levels. Most other injectors use fuel pressure to atomise the fuel but the major disadvantage of this is the lack of pre-mix and the high pressures required to achieve fine atomisation when compared to the Pulse Fuel Injector.
The nozzle can be used with conventional multipoint injectors to give a result very close to that of the combined Pulse Fuel Injector and Nozzle. This is the preferred method for the Beare Head application.
The nozzle allows for injection direct into the cylinder through the intake ports during induction and allows for up to 20% premix of air to fuel. The injection method can be compared to a rifle shot into the cylinder during intake.
The method can utilise the unique fact that the Beare Head can have multiple intakes and the preferred method being two. This allows great control over stratified charge injection and idle emissions. The other great advantage of matching with the Beare Head is its ability to fit a compressor piston to the top control piston thus allowing each cylinder to generate its own atomising air supply which is about 1% of the total which enters the engine.
Increased efficiency and reduced emissions in internal combustion engines.
Such a system will replace existing fuel injector designs; or the nozzle can be used alone with existing injectors.
Independent test results:
SRI International, CA, USA have tested the technology and their results gave a mean droplet size of 5.3 Microns. Droplets of 50 microns or larger are a major source of vehicle pollution:
Environmental Protection Agency, Ann Arbor, Michigan, USA test shows fine atomisation with methanol and methanol mixtures on a high-speed video for technical evaluation.
Naval Air Warfare Center Weapons Division, China Lake, CA, USA, which shows dramatic, increases in power and flame speeds. Their primary findings were that in one active combustion control test, the critical (or minimum) flux required for control was reduced by 400% fuel when the previously used injectors were replaced with the Pulse Fuel Technology.
Full reports of these tests conducted by the foregoing organisations are available for perusal.
Product: Combination - Beare Technology/Pulse Fuel Nozzle
The application of the Beare Head with the nozzle technology (which is patented) can achieve a clean and efficient burn, high torque, and low maintenance system with the economical benefits of reduced manufacturing and production costs.
This creates a truly unique, benefit packed and expandable technology. This self-contained head unit consists of fuel injection and valve gear, which can be fitted to any conventional 4-cycle engine.
It can be OEM or retrofitted to existing vehicles and motorcycles.
The retrofit market alone is an enormous one, which would incorporate millions of existing 4 cycle motorcycles throughout Asia and the western world.
As well there are the existing 4 cycle engines in motor vehicles either for upgrading of older engines to comply with new requirements for the racing industry where engine speeds can be greatly increased and engine speeds in excess of 28,000 rpm are predicted
Applications include: new four stroke engines in cars, motor cycle engines, new four stroke marine engines/aircraft engines, stationary engines. There is the capacity to retro fit to existing engines in the after-market for the above.
