Recent trends in automobiles

RECENT TRENDS IN AUTOMOBILE

Six-Stroke-Engine (PCE)

ABSTRACT:

The piston charger is charging the main cylinder and simultaneously regulating the inlet and outlet aperture leading to no loss of air and fuel in the exhaust.

In the main cylinder combustion takes place every turn as in a two-stroke engine and lubrication as in a four-stroke engine. Fuel injection can take place in the piston charger.

The combination of compact design for the combustion chamber together with no loss of air and fuel gives the engine more torque more power and less fuel consumption. The benefit of less moving parts and clever technical design will lead to lower manufacturing costs. The engine is especially suited for use with alternative fuels since there is no corrosion or deposits left on valves.

It also fits in the hybrid technology because of its simplicity.

CONSTRUCTION DETAILS:

The parts of engine are

v Cylinder

v Piston

v Crank shaft

v Connecting rod

v Valve

v Cam shaft

v Spark plug

v Carburettor

WORKING PRINCIPLE:

PROCESS

v Aspiration

v Pre compression

v Gas transfer

v Compression

v Ignition

v Ejection

DESCRIPTION OF THE NEW ENGINE CONCEPT

The engine combines the specific advantages of both: the two cycle and the four-cycle engines. Furthermore it eliminates many of the deficiencies of both types of engine.

It achieves this by means of the ingenious technology, which is incorporated in the Piston Charger Engine (PCE).

The complicated valve system in a four-cycle engine is eliminated and a number of expensive moving parts are considerably reduced. This is achieved by means of provision of the cylinder (the Piston Charger Cylinder), which delivers the fuel-/air mixture to a working cylinder. The working cylinder drives the crankshaft by conventional means. The system works by means of an innovative programmed interplay of the operation of the pistons; the opening and closing of ports and channels through which the fuel/air mixture and the exhaust gases pass and the timing of ignition. As a result, all parts relating to any valve operations are completely eliminated. Valve and tappet noise is no longer present, resulting in much quieter engine noise levels.

The engine operates in a two-cycle configuration, but in contrast to the usual requirement for adding lubrication system, which is used in modern four-cycle engines. Because the PCE operates with twice the ignition frequency of a four-cycle engine with the same number of combustion cylinders, the result is a much smoother operation. For example, a PCE with four combustion cylinders has the same smoothness of operation as one with approximately the same power output. The higher ignition frequency results in a greater thermal efficiency.

The PCE concept can be applied in both - Otto and Diesel engine principles. In the case of the Otto engine, the PCE technology offers many improvement possibilities for the creation of the fuel/air mixture some of which has not previously been possible.

The mixture can be created by:

v Low-pressure injection into the charge pump cylinder

v Aspiration using a carburettor

v Direct injection into the combustion chamber

v Injection into the channels

v The engine design and layout can also be very flexible.

The PCE can be constructed with virtually no design limitations as:

v Horizontally opposed (boxer) engine

v An in-line engine

A v-engine

It is also possible to use one piston charger cylinder to fuel two working pistons. This permits a significant weight reduction and it may reduce engine compartment space.

Initial measurement of fuel consumption on the prototype has indicated a significant improvement in over all engine efficiency.

Piston charger engine (PCE) at alternative fuels

At the ethanol engine, bio diesel, gas and H2 engine there is no corrosion and no depositions at valves.

At the ethanol engine there are no defective-susceptible injection nozzles, in that the PCE works with a simple carburettor, and shows us nevertheless an optimal achievement, consumption and exhaust gas values, because the rinsing losses are completely eliminated by the mechanical discharge opening control.

The H2 engine works with a homogeny combustion chamber, so that there are no uncontrolled ignitions on heat outlet valves.

ADVANTAGES:

Economic Advantages of the of the Six- Stroke Engine

v Elimination of many moving parts

v Elimination of many specialised parts

v Robust construction

v Reduction in maintenance due to parts reduction and simpler construction

v Substantial reduction in the cost of production

v Lower energy demands for productive

v Very low fuel consumption