公开(公告)号：US3924897A

公开(公告)日：1975-12-09

申请号：US42703973

申请日：1973-12-21

Applicant: SOUTHWEST RES INST

Inventor： COLBURN JR JOHN W ,  WOOD III CHARLES D ,  MATHIS RONALD J ,  NYE ALLAN R

IPC: E02F3/88 ,  E02F5/32 ,  E21C47/00

CPC classification number: E02F3/8883 ,  E02F5/323 ,  Y10S37/904

Abstract: A tractor-drawn earth ripper is disclosed as including a combustion apparatus mounted on the tractor for providing repetitive explosions to aid the ripper in earth fracturing. A discharge conduit is provided for conducting gas under pressure to the lower end of a ripper shank to provide such explosions about the ripper tooth, and apparatus is disclosed for mounting the lower end of the discharge conduit on the lower end of the ripper shank.

公开(公告)号：US3915381A

公开(公告)日：1975-10-28

申请号：US40996273

申请日：1973-10-26

Applicant: SOUTHWEST RES INST

Inventor： MELTON JR ROSSER ,  CLARK JR JOHN M ,  MATHIS RONALD J ,  WEATHERFORD JR WILLIAM D ,  WOOD III CHARLES D

IPC: B05B7/00 ,  C23C4/12 ,  B05B1/24 ,  C23C7/00

CPC classification number: B05B7/0006 ,  C23C4/126

Abstract: A system for applying particulate coating material to a work piece in which the particulate material is directed against the work piece in a series of pulses. Each pulse includes an initial step of feeding a charge of combustible gaseous mixture into a combustion chamber provided with an outlet nozzle. The combustible mixture is ignited and the outflow of gaseous mixture through the nozzle is constricted sufficiently to cause a rapid pressure rise during combustion to a peak value, followed by a period of falling pressure during continued outflow of the combusted mixture through the nozzle. A charge of the particulate coating material is injected into the combustion chamber for a brief period which terminates while the pressure in the chamber is at least a substantial proportion of the peak pressure. The outflow of combustion mixture and entrained particulate material is directed through the nozzle at high velocity against the work piece to cause the particulate material to form a coating on the work piece.

Abstract translation: 一种用于将颗粒涂层材料施加到工件上的系统，其中颗粒材料以一系列脉冲对准工件。 每个脉冲包括将可燃气体混合物的电荷进料到设有出口喷嘴的燃烧室中的初始步骤。 可燃混合物被点燃，并且通过喷嘴的气体混合物的流出充分收缩，以使燃烧期间的快速压力上升到峰值，然后在燃烧的混合物通过喷嘴持续流出期间的下降压力周期。 颗粒状涂层材料的电荷被注入到燃烧室中短暂的时间段，其终止，同时室内的压力至少是峰值压力的相当大的比例。 燃烧混合物和夹带的颗粒材料的流出物以高速度通过喷嘴被引导到工件上，以使颗粒材料在工件上形成涂层。