Caterpillar Engine Rolling Torque
Caterpillar Engine Rolling Torque
(OP)
I'm reading some technical information on a Caterpillar 3616 engine that says
"Maximum rolling moment/torque: It is the phased summation maximum of all cylinders over one full engine cycle (720 degrees)"
see page 22 of the attached document.
I'm not familiar with the concept of rolling torque or what it means. Can anyone offer any references to understand what a rolling torque is an how it is calculated?
"Maximum rolling moment/torque: It is the phased summation maximum of all cylinders over one full engine cycle (720 degrees)"
see page 22 of the attached document.
I'm not familiar with the concept of rolling torque or what it means. Can anyone offer any references to understand what a rolling torque is an how it is calculated?





RE: Caterpillar Engine Rolling Torque
Mike Halloran
Pembroke Pines, FL, USA
RE: Caterpillar Engine Rolling Torque
I found an A&I guide for 3600 gas engines that gives rolling torques at various speeds for various compression ratios, suggesting that it's calculated using component inertias and gas pressures. Fine, but the same tables include 'maximum torque' numbers ten times bigger, and 'minimum torque' numbers five times bigger.
I don't know what the hell it means. Maybe some CAT expert will drop in and explain it to both of us.
Mike Halloran
Pembroke Pines, FL, USA
RE: Caterpillar Engine Rolling Torque
He doesn't tend to hang around these parts. Better off moving to the engine and fuel engineering forum.
- Steve
RE: Caterpillar Engine Rolling Torque
RE: Caterpillar Engine Rolling Torque
Hope that helps, Mike L.
RE: Caterpillar Engine Rolling Torque
RE: Caterpillar Engine Rolling Torque
Mostly the oil and gas customers are the ones who request this data most frequently.
Hope that helps, Mike L.