Endurance Test of Philips Model 1/4D External Combustion Engine,
Abstract
A Philips Model 1/4D external combustion engine, equipped as a portable generator set, was operated as continuously as practicable at its rated output, 124.5 watts, or more, in order to indicate its reliability. The performance of the unit was generally satisfactory except for the following: fouling of the fuel nozzle on five occasions; excessive carbon deposits in the gasoline-air mixture venturi tube on one occasion; failure of the compressor suction valve seat disc; and failure of the heater head thermocouple. The engine operated satisfactorily with Amoco water white (lead free) gasoline for 500 hours and leaded 80 octane motor fuel for 30 hours. The test was discontinued after 597 hours operation due to failure of the engine's main roller bearing. A post-trial disassembly inspection of the engine showed that it was in generally satisfactory condition except for the failed roller bearing, slight to moderate fouling of the internal cooler fins and somewhat excessive wear of the compressor piston tappet face and of the piston pins, displacer crankpin, and displacer rod and their mating bushings. It was recommended that the engine be tentatively considered suitable for limited service use and that certain improvements be made in the unit. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 30, 1950
- Accession Number
- ADA053941
Entities
People
- Alan R. Schrader