SL55/63/65/R230 AMG: Kompressor
12-26-2002, 03:28 PM
#3
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Kompressor is German for.... Compressor. The actual German work for supercharger is "Gebläse" (pronounced Ge-blay-ser" where Ge is as in Ge-rtrude, not Ge-rman).
I guess Kompressor is more internationally recognised because the pronunciation is similar for English and German, as well as French which I think would be Compresseur.
I guess Kompressor is more internationally recognised because the pronunciation is similar for English and German, as well as French which I think would be Compresseur.
12-27-2002, 01:01 AM
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S-500 Lorinser, 540 Alpina, 512BBI, C-270 CDI Lorinser, Disco 2.5TDI, 2003 SL-500
If you blow air into a closed passage (inlet manifold with inlet valves closed), it becomes compressed, whether it is being done by a Rootes-type, vane-type or any other type of supercharger or turbocharger.
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12-27-2002, 03:54 AM
#8
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All a turbo or supercharger essentially does is increase the volumetric efficiency of the engine so that the charge mass ingested into the cylinder increases on the induction stroke.
In a regular engine, the downward motion of the piston creates a partial vacuum which is filled from the inlet manifold due to the higher pressure there. However, this process is not perfect and for a given size of cylinder, you will end up with less than that volume of air at normal pressure than you expect. This efficiency drops away dramatically at higher engine revs where the speed at which things happen is influenced by the speed of sound in the air, in other words, how quickly a change of pressure is propagated through the volume. This is why induction manifolds in some normally aspirated cars are reconfigured as engine revs increase using solenoid operated flap valves for example.
Using a turbo or supercharger increases the manifold pressure to improve the process as will cooling the air which will increase its density.
The whole purpose of multi-valve engines is to reduce the restriction to the inflow or egress of gas, and because the valve opening is rather small, the effect increases with the linear circumference of the valve. Also, if you elect to have only 3 valves per cylinder, as on the Mercedes engine, two are used for input and one for exhaust. There's much less problem getting air out of a cylinder because the rising piston acts to increase the pressure in the cylinder to force it out. It takes power out of the engine, but it works.
In a regular engine, the downward motion of the piston creates a partial vacuum which is filled from the inlet manifold due to the higher pressure there. However, this process is not perfect and for a given size of cylinder, you will end up with less than that volume of air at normal pressure than you expect. This efficiency drops away dramatically at higher engine revs where the speed at which things happen is influenced by the speed of sound in the air, in other words, how quickly a change of pressure is propagated through the volume. This is why induction manifolds in some normally aspirated cars are reconfigured as engine revs increase using solenoid operated flap valves for example.
Using a turbo or supercharger increases the manifold pressure to improve the process as will cooling the air which will increase its density.
The whole purpose of multi-valve engines is to reduce the restriction to the inflow or egress of gas, and because the valve opening is rather small, the effect increases with the linear circumference of the valve. Also, if you elect to have only 3 valves per cylinder, as on the Mercedes engine, two are used for input and one for exhaust. There's much less problem getting air out of a cylinder because the rising piston acts to increase the pressure in the cylinder to force it out. It takes power out of the engine, but it works.
12-27-2002, 05:07 AM
#9
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this is getting interesting - the German verb blasen means to blow. Its past participle, geblasen means blown. The noun Gebläse means blower so perhaps Gebláse is one particular type of supercharger and Kompressor the other?
I dont know for sure but presumably Mercedes uses the compressor type and Bentley as in the old Brooklands racing "Blower Bentley" the blower type?
I dont know for sure but presumably Mercedes uses the compressor type and Bentley as in the old Brooklands racing "Blower Bentley" the blower type?
12-27-2002, 06:36 AM
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SL500 Ex SL55, ML55, S430
Originally posted by blueSL
The actual German work for supercharger is "Gebläse" (pronounced Ge-blay-ser" where Ge is as in Ge-rtrude, not Ge-rman).
[/B]
The actual German work for supercharger is "Gebläse" (pronounced Ge-blay-ser" where Ge is as in Ge-rtrude, not Ge-rman).
[/B]
Each to their own!
12-27-2002, 10:37 AM
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Too Young To Drive
Kompressor, supercharger, same thing.... I remember talking to the GM of the dealer here about the SLK230 Kompressor when it came out, wondering what the word Kompressor stood for. I knew what turbos and superchargers were.... but never have i heard of the word Kompressor.
12-28-2002, 05:29 AM
#13
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Mookie, if I tell you my head is so large that the biggest helmet made will not fit (ruling out track work), there has to be something lurking in that over-sized cranial cavity....
12-28-2002, 05:45 AM
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Originally posted by blueSL
Mookie, if I tell you my head is so large that the biggest helmet made will not fit (ruling out track work), there has to be something lurking in that over-sized cranial cavity....
Mookie, if I tell you my head is so large that the biggest helmet made will not fit (ruling out track work), there has to be something lurking in that over-sized cranial cavity....
12-28-2002, 06:43 AM
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CLK 55 AMG March 2000
As a German,
I would say that "Kompressor" is the device or engine which is used to make some medium, e.g. air, smaller in Volume by building up pressure, the verb is "komprimieren".Origin of the word should be Latin "comprimere".
Whether this device works as a cetrifugical blower, an axial blower or Eaton blower etc. is not of importance.
Stefan
I would say that "Kompressor" is the device or engine which is used to make some medium, e.g. air, smaller in Volume by building up pressure, the verb is "komprimieren".Origin of the word should be Latin "comprimere".
Whether this device works as a cetrifugical blower, an axial blower or Eaton blower etc. is not of importance.
Stefan
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