MolaKule
Staff member
Originally Posted By: turtlevette
Originally Posted By: MolaKule
Originally Posted By: turtlevette
The other thing to remind shannow, is that the volume of oil actually going through the hydrodynamic space is very small. Most of the oil circulation is excess. The bearings contribute a small volume of hot oil.
An real engineer would know that "hydrodynamic" is a descriptive condition, not a physical space.
The oil "wedge" would be the physical "space."
You're going to argue terms but not my statement about the volume?
Good enough for me. I'm an EE not mechanical.
What was your oil volume statement? You vacillate with so many different topics it is difficult to follow you.
And yes, words and phrases have meanings.
Regarding Bearing Temp, Oil Volume and Oil Flow:
The oil flow and temperature in a bearing rig (bearing isolated) with a specified load and constant oil inlet temperature of 120C was as follows,
At an oil volume exchange rate of 5 cm^3/s @ an Oil Velocity of 10.9 m/s, the bearing temp averaged 150C.
At an oil volume exchange rate of 10 cm^3/s @ an Oil Velocity of 10.9 m/s, the bearing temp averaged 140C.
At an oil volume exchange rate of 15 cm^3/s @ an Oil Velocity of 10.9 m/s, the bearing temp averaged 135C.
AT an oil volume exchange rate of > = 17 cm^/2, the bearing temp curves flatted out.
SAE Paper 910160
Originally Posted By: MolaKule
Originally Posted By: turtlevette
The other thing to remind shannow, is that the volume of oil actually going through the hydrodynamic space is very small. Most of the oil circulation is excess. The bearings contribute a small volume of hot oil.
An real engineer would know that "hydrodynamic" is a descriptive condition, not a physical space.
The oil "wedge" would be the physical "space."
You're going to argue terms but not my statement about the volume?
Good enough for me. I'm an EE not mechanical.
What was your oil volume statement? You vacillate with so many different topics it is difficult to follow you.
And yes, words and phrases have meanings.
Regarding Bearing Temp, Oil Volume and Oil Flow:
The oil flow and temperature in a bearing rig (bearing isolated) with a specified load and constant oil inlet temperature of 120C was as follows,
At an oil volume exchange rate of 5 cm^3/s @ an Oil Velocity of 10.9 m/s, the bearing temp averaged 150C.
At an oil volume exchange rate of 10 cm^3/s @ an Oil Velocity of 10.9 m/s, the bearing temp averaged 140C.
At an oil volume exchange rate of 15 cm^3/s @ an Oil Velocity of 10.9 m/s, the bearing temp averaged 135C.
AT an oil volume exchange rate of > = 17 cm^/2, the bearing temp curves flatted out.
SAE Paper 910160
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