| 摘要 |
FIELD: mechanical engineering; engines. SUBSTANCE: engine has at least one two-step cylinder 1 with internal circular step 2, piston 3 with head 4 coupled with connecting rod 5, head 6 of cylinder 1 with spark plug 7 and intake manifold 8 with intake valve 9 used for timing, throttle valve 10 common for all cylinders, exhaust manifold 11 with exhaust valve 12, fuel mixture supply line 13 common for all cylinders, common air supply line 14 with common choke valve 15. Device for pressure overheating of fuel made in the form of tubular heat exchanger is arranged in exhaust manifold 11 and is connected with system of pipelines. Multifunctional camshaft 18 is installed on one axle with fuel pump and connected with pump by splined joint and is loaded by spring. Multifunctional camshaft arranged in circular step 2 of cylinder 1 has slots-spools providing connection of fuel pressure overheating device with vacuum chamber 22 formed between walls of cylinder 1, piston 3 and circular step 2 with piston moving from bottom dead center owing to provision of intake port 23 and in circular step 2 and channels 24 with jets 25. Side cutouts 26 made in camshaft ensure periodical connection of vacuum chamber with air supply line 14 or with fuel mixture supply line 13 also through intake port 23 and channels 24 with jets 25. Head 4 of piston 3 forms together with head 6 of cylinder 11 combustion chamber which is periodically placed in communication with vacuum chamber 22 through fuel mixture supply line 13. EFFECT: enlarged operating capabilities. 1 cl, 6 dwg |
