公开(公告)号：GB910056A

公开(公告)日：1962-11-07

申请号：GB3992160

申请日：1960-11-21

Applicant: STANRAY CORP

Inventor： PHILLIPS EARL ALVIN

IPC: B64F1/26

Abstract: 910,056. Blast deflector fences. STANRAY CORPORATION. Nov. 21, 1960, No. 39921/60. Class 51 (2). A blast deflector and silencing fence for jet engines comprises inclined, perforated, prefabricated units arranged back-to-back so that part of the blast is diverted upwardly and part passes through the perforations, the units being made of single sheets 16 of metal having flanges 18 on two opposite sides and another base flange 28 by which the fence may be weighted or anchored to the ground. Each unit is formed with perforations 30 1 and may be bent along lines 24 and 26 as shown in Fig. 2 or may be of arcuate form, Fig. 4 (not shown). In a modification, Fig. 11, a single fence is supported by struts 51 and 52 secured to angle iron shoes 56. A baffle screen 57 is fixed at an angle to the fence on arms 58 passing through slots 60 and attached at 59 to the strut 51. The perforations here are limited to a few near the base of each unit. The baffle screen may be applied to a back-to-back unit, Fig. 13 (not shown), or may be omitted, Fig. 9 (not shown). The aggregate area of the perforations may reach up to 60% of the area of each unit.