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New Auto Motor

Inventor: Walter S. Rohn
Year: 1927
Device: IC Engine
Folder: rohn
Original: Open article
Confidence
0.90
Practicability
0.60
Evidence
0.20
Fringe Score
0.20
Risk
0.20
TRL
4

Goal

Reduce automobile fuel costs and simplify engine construction by eliminating spark plugs and connecting rods while using low-grade oil as fuel.

Problem

High fuel cost of gasoline, dependence on high-grade fuel, and mechanical complexity of conventional spark-plug and rod-based internal-combustion engines.

Concept Summary

A novel internal-combustion engine that uses an odd-shaped cam on the crankshaft to receive power directly from a roller mounted on the piston. Extreme compression generates heat that ignites low-grade oil in a slow explosion, eliminating the need for spark plugs and traditional connecting rods.

Principles

  • Compression ignition
  • Cam-driven power transfer
  • Direct piston-to-crankshaft mechanical coupling

Scientific Domains

Mechanical Engineering Thermal Systems Combustion

Materials

  • Steel
  • Iron
  • Low-grade oil (fuel)

Mechanisms of Action

  • Heat generated by high compression ignites fuel
  • Cam profile converts piston motion into crankshaft rotation without rods

Energy Sources

Low-grade oil

Applications

  • Automobile propulsion
  • Low-cost vehicular powerplants

Claimed Performance

Motor fuel costs can be cut to 5 cents a gallon.

Limitations

  • No experimental data provided in the article
  • Performance claims based on theoretical description only
  • Potential material wear due to high compression

Red Flags

  • Absence of quantitative performance data
  • Reliance on a single historical patent claim

Keywords

internal combustion engine compression ignition cam engine low-grade oil spark-plug-free

Related Technologies

Diesel engine Modern compression-ignition engines

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