UNAUTHORIZED ACCESS INTERLOCK Russian patent published in 2001 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: main control and/or functional elements 11, 25 of engine supply device are covered by hood-like member 34 connected with protected supply devices so that access to elements or re-demounting of hood 34 is possible only after mechanical breakage of hood. If breaking force limit is exceeded, hood is broken at programmed place 52 leading to forcing out of control or functional element 25 or its carrying limiting wall 26, 27 towards fuel feed spaces of supply device. EFFECT: long-time violation of serviceability of engine supply device at unauthorized access. 24 cl, 8 dwg