Imprint Contact 868 Videos
900.000 Callings


Wheel change
Save Energy

Video Comfort

Video Noise 1
Video Noise 2
Video Car-Sound 1
Video Car-Sound 2
Video First car-radios
Video Central Locking 1
Video Handsfree Entry/Drive
Video Drawing Assistance
Video Debarred
Video Electr. Window Lifter
Video Luggage compart. front

Video Heating - Air Cond.
Video Air Conditioning 1
Video Air Conditioning 2
Video Air Conditioning 3
Video Air Conditioning 4
Video Air Conditioning 5
Video Air Conditioning 6
Video Air Conditioning 7
Video Air Conditioning 8
Video Air Conditioning 9
Video Air Conditioning Test
Video No Do-it-yourself
Video Expansion valve (AC)
Video Climatic Wind Tunnel

Video Auxilliary Heating 1
Video Auxilliary Heating 2
Video Auxilliary Heating 3
Video Auxilliary Heating 4
Video Seat-Heating

Video Digital Technology
Video Trip Computer 1
Video Trip Computer 2
Video Navigation Systems
Video LCD-Displays
Video Data Compression
Video Electr. Distance Contr.
Video Parking Brake
Video Hydr. Power Steering
Video Electr. Acceler. Pedal
Video Minivan
Video Convertable

Video Comfort - Interior 1
Video Comfort - Interior 2

          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

In-line Two-cylinder Four-stroke


Compared to the single cylinder engine, the four-stroke two-cylinder in-line engine does not have a substantially improved mass balance, in spite of a higher construction expenditure, however, avoids with quite rare exceptions three consecutive empty strokes and bears a quieter engine run. In addition, the usual advantages of multi-cylinder engines remain of course. The cubic capacity is distributed on two cylinders, lowering the strain and, e.g., the speed and the performance is raised.

How it works

The four-stroke two-cylinder in-line engine resembles the single cylinder engine. Two pistons are in the same way moved from TDC to BDC and back. If they are both in the top-dead centre (TDC), one just finished compressing and starts with the power stroke, while the other has just finished exhausting and now begins with the intake stroke. Sometimes manufacturers (KTM) also try to improve the mass balance by implementing two crankpins, staggered by 180. Then, however, two empty strokes follow two power strokes, influencing the operation of the engine clearly negatively. 05/08               Top of page               Index
2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

Our E-Book advertising