INTERLOCK AGAINST UNAUTHORIZED ACCESS Russian patent published in 2000 - IPC

FIELD: mechanical engineering; protection interlocks. SUBSTANCE: invention relates to devices aimed at preventing unauthorized access to functional elements of fuel system, particularly, to fuel injection pump. Proposed interlock has base with bottom part by means of which base is connected by screws to wall of fuel feed system housing. It has cover 44 which is installed on base to enclose functional element 25. Shape of outer surface of side wall 43 and cover 44 coincides with surrounding surfaces with provision of geometrical closing of base side wall 36. Thus access to functional element 25 and to base attachment is prevented. Cover 44 is secured on base by connecting elements 54 protected against breaking open. EFFECT: improved reliability of protection. 11 cl, 2 dwg