DEVICE TO FORCE AIR INTO DIESEL ENGINE CYLINDERS Russian patent published in 2009 - IPC F02B29/00 F02M35/10 

FIELD: engines and pumps.

SUBSTANCE: invention relates to engine production, particularly to internal combustion engine feed system. Air feed device comprises pipelines, intake and exhaust valves (11, 12), and check valves (7, 50). Proposed device differs from known designs in that it incorporates pneumatic accumulator (2) with piston (4) and spring (5), assembly of ejectors (33) comprising ejectors (45, 46, 47, 48) arranged coaxially, one above the other, in subpiston space (44) of aforesaid pneumatic accumulator (2). It comprises also pipeline (24) to feed waste gases in said assembly of ejectors and assembly of valves (21) to control operation of pneumatic accumulator (2) with valve (22) that communicates pneumatic accumulator subpiston space (44) with assembly of ejectors (33) via flap valves (39, 40, 41), and with valve (25) that communicates air cleaner (1) with aforesaid subpiston space. Note that adjusting shims (49) are fitted on one end face of pneumatic accumulator spring.

EFFECT: efficient and reliable air feed device.

2 dwg