Accession Number : ADA003273


Title :   Development of Explosive Ripper with Two-Stage Combustion


Descriptive Note : Final rept. 1 May-31 Oct 1974


Corporate Author : SOUTHWEST RESEARCH INST SAN ANTONIO TX


Personal Author(s) : Mathis, Ronald J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a003273.pdf


Report Date : Oct 1974


Pagination or Media Count : 59


Abstract : The staged combustion technique is an extension of an earlier concept of increasing the rock-ripping capability of the standard D7F Caterpillar tractor. The objective of this contract was two-fold; one, to demonstrate that the entire fuel/air explosion system could be conveniently mounted on the D7 ripper tractor. Secondly, to produce the same combustion pressure as obtained on previous REDSOD (Repetitive Explosive Device for SOil Displacement) devices using a small 20 psig blower and a diesel fuel/air mixture. The project results are presented in three basic sections of this report: First, the analysis and model testing of the staged combusion concept; Next, the design and equipment development necessary to adapt the device to the tractor; Finally, a discussion of results of the staged combustion device concept.


Descriptors :   *EXCAVATION , *TRACTORS , *EXPLOSIVE GASES , COMBUSTION , COMBUSTION CHAMBERS , FLAME PROPAGATION , DIESEL FUELS , ORIFICES


Subject Categories : Construction Equipment, Materials & Supplies


Distribution Statement : APPROVED FOR PUBLIC RELEASE