Abstract:
A ripper employs a repetitive exploding device whereby a gaseous fuel mixture is introduced into fissures created in material being ripped, and is ignited to provide repetitive explosions which create high energy release for rock breaking and fracturing.
Abstract:
An accumulator-type injector nozzle providing a case defining a valve chamber, an inwardly opening spring-loaded check valve being positioned within the chamber for controlling a fuel outlet, a sleeve defining a fuel accumulator chamber being positioned within the case to receive pressurized fuel having leaked behind the check valve, the sleeve also serving as an edge-type fuel filter, the sleeve further serving to align the check valve with the outlet and to adjust the load on the valve spring.