FIELD: mechanical engineering; two-stroke internal combustion engines. SUBSTANCE: proposed two-stroke internal combustion engine contains piston and cylinder with intake and exhaust ports. Cutoff valve is installed between exhaust port and exhaust branch pipe made in form of cylindrical body to provide discharge of combustion products through hole of valve and to feed air from air line through exhaust port into cylinder. According to invention, spiral space is formed in cutoff valve body from one edge of hole to let out gases to its other edge, said space uniformly contracts decreasing to zero. EFFECT: improved process of gas exchange in two-stroke engine, practically without losses, possibility of using combination lubrication system. 11 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TWO-STROKE INTERNAL COMBUSTION ENGINE | 0 |
|
SU1800078A1 |
| INTERNAL COMBUSTION ENGINE AND ITS VALVE TIMING | 2004 |
|
RU2272161C2 |
| INTERNAL COMBUSTION ENGINE | 2005 |
|
RU2295048C2 |
| CROSSHEAD INTERNAL COMBUSTION ENGINE | 1998 |
|
RU2141045C1 |
| ENVIRONMENTALLY FRIENDLY TWO-STROKE ENGINE | 2019 |
|
RU2716768C1 |
| CAM DRIVE OF SCAVENGING VALVE OF PISTON TWO-STROKE INTERNAL COMBUSTION ENGINE WITH CRANKCASE DISPLACEMENT SCAVENGING | 2000 |
|
RU2219356C2 |
| TWO-STROKE INTERNAL COMBUSTION ENGINE | 1993 |
|
RU2067670C1 |
| 0 |
|
SU1776840A1 | |
| METHOD OF AND DEVICE TO INCREASE EFFICIENCY OF VALVE ACTUATING IN TWO-STROKE INTERNAL COMBUSTION ENGINES | 2003 |
|
RU2228449C1 |
| TWO-STROKE ENGINE | 1999 |
|
RU2230206C2 |
