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click on the image
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Professional
Cam is the ideal and complete software for
engineering, team, tuner, etc. developing camshafts. In
fact the software allows, to design valve lift law, to calculate
cam profile for the main type of valve train system, to verify
the valve train system with the spring load calculus and also to
analyze the geometry of combustion chamber. |
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Presentation
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The camshaft is the
heart of the 4-stroke engine, and is therefore one of the components
on which we mainly act to improve engine performance.
Usually after that have been defined the new valve timing and the
maximum valve lift, two important steps must be overcome to create
new cams :
| calculation of the lift law
which must satisfy the dual purpose of maximizing the
volumetric efficiency and to guarantee the mechanical
reliability |
| calculation of the cam
profile which implements the lift law calculated in function
of the valve train system of the engine |
The software Professional Cam allows you to tackle these phases in
an easy and professional way.
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LIFT LAW
The software Professional Cam offers the possibility to obtain
multiple lift laws, in this way it will be possible to satisfy the
different needs, performance, reliability, and feasibility of the
cam in function of the features of the valve train system.
Specifically, the software contains all the main lift laws that have
been developed over the years and which appear to be the most
suitable for the needs of the engines.
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LIFT |
ACCELERATION |
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| NT-Polydyne |
This type of lift law is based on particular "polydyne"
polynomials appropriately modified with a special algorithm
to optimally connect it to eventual ramps, hence the name
"NT-Polydyne". |
| NT-Spline |
This type of lift law is based on "splines"
appropriately designed to create laws that satisfy the needs
of engine valve train systems and which connect in an
optimal manner to eventual ramps, hence the name
"NT-Spline". |
| NT-Trigonometric |
This type of lift law is based on trigonometric laws
appropriately studied to create laws that satisfy the needs
of engine valve train systems, and modified with a special
algorithm to optimally connect to eventual ramps, hence the
name "NT-Trigonometric ”. |
| NT-Polynomial 8° |
This type of lift law is based on an 8° polynomial law
appropriately modified with a special algorithm to optimally
connect to any ramps, hence the name "NT-Polynomial 8°". |
| NT-Dudley |
This type of lift law is based on the particular
"polydyne" polynomials developed by Dudley appropriately
modified with a special algorithm to optimally connect to
eventual ramps, hence the name "NT-Dudley". |
For each of these laws it is possible to manage some parameters that
modify the level of aggressiveness of the law, furthermore these
laws can also have ramps to recover the valves clearance, and can
also have an asymmetric profile.
Into the software is also possible to import lift laws detected
experimentally, and thanks to a special filtering algorithm it is
possible to use them to obtain the cam profile.
| CALCULATION FROM
UNFILTERED DATA |
CALCULATION WITH NT FILTERED DATA |
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In fact, the lift laws detected experimentally present various
measurement errors, which emerge when speed and acceleration are
calculated. Therefore, without adequate filtering and reprocessing
it would be impossible to reuse them to calculate the cam profile.
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VALVE TRAIN
SYSTEM
The software Professional Cam Pro allows to calculate the cam
profile for all the main valve train system, from those at direct
attack, both with flat tappet, both with roller centered or offset,
to those with rocker arms or finger arms, until to the systems with
pushrods and rocker arms, both with flat tappet, both with roller
centered or offset.
In the version Basic of the software there are only the valve train
system with direct attack, both with flat tappet, both with roller
centered or offset
The insertion of the data in the software to define the features of
the valve train system has been designed to be as easy as possible,
in this way even without having the drawings of the valve train
system it is possible to collect the necessary data with simple
experimental measurements.
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SYSTEM
DYNAMIC
By entering the weights of the elements of the valve train system
and the features of the springs, thanks to the software Professional
Cam it is possible to quickly check whether there are valve floating
conditions and evaluate the level of the Hertzian pressure acting on
the cams.
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ENGINE
When you change the valve timing and the maximum valve lift one of
the problems that you may encounter is interference with the piston,
therefore in the software Professional Cam there is a module where
you can enter the main data of the cylinder head and of the piston,
for hemispherical and roof combustion chambers, and carry out a
simulation of the operation to have an initial assessment of the
situation.
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In the
videos that follow you can see the different functionalities
described above in more detail.
The functions relating to the lift present in the video have been
updated in the latest edition of the software, for this reason you
can refer to what is shown in the presentation.
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| As you have
seen, the software Professional Cam is the ideal tool for developing
new cams, in fact it allows you to easily define your project,
satisfying at the best the different needs of performance,
reliability and feasibility. |
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Purchase |
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NT-PROJECT - Ferrara (Italy)
- info@ntproject.com |
tutto il
materiale contenuto nel presente sito è coperto dalle leggi sul diritto d'autore ©
2005/19 |
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