FIELD: mechanical engineering; diesel engines.
SUBSTANCE: invention relates to devices for checking condition of plunger pairs of high-pressure fuel-injection pumps. Proposed devices contains housing with plunger pair to be tested, additional plunger pair connected by hydraulic line to pair under testing and creating with the latter a closed variable volume filled with diesel fuel. Housing has central channel and auxiliary channels connecting central channel connecting central channel with overplunger spaces of both pairs. Check valves are installed in auxiliary channels. Mechanically loading device is made in form of pusher hinge-connected with recording mechanism including rod with rigidly secured pointer and scale. Invention prevents necessity of checking fuel flowing time accuracy of which depends on qualification of operator.
EFFECT: improved accuracy of evaluation of condition of plunger pairs, reduced labor input.
1 dwg
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