A SCAVENGER
Designed to scavenge the cylinder of all exhaust gases, a new engine has been patented by Mr F. B. Brown, an English engineer.
The cylinder head, instead of being rigid, is a small, separate piston, operated by an overhead crankshaft, and on the exhaust stroke this upper piston moves down to meet the upward thrust of the driving piston, reducing the space of the combustion chamber to a minimum, forcing out the burnt gas.
Returning to its position on the induction stroke, the .overhead piston helps to suck in the fresh charge, and does not move during compression and combustion .
Theoretically, the scavenging idea is sound in a low-compression motor, but actually it would probably prove merely another outlet*'for compression because movement causes friction, and friction causes wear.
Permanent link to this item
Hononga pūmau ki tēnei tūemi
https://paperspast.natlib.govt.nz/newspapers/SNEWS19280117.2.20
Bibliographic details
Ngā taipitopito pukapuka
Shannon News, 17 January 1928, Page 4
Word count
Tapeke kupu
130A SCAVENGER Shannon News, 17 January 1928, Page 4
Using this item
Te whakamahi i tēnei tūemi
Copyright undetermined – untraced rights owner. For advice on reproduction of material from this newspaper, please refer to the Copyright guide.
Log in