| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: proposed sealed electrical compressor 1 has normally-open pressure switch 7 and fuse 6. Said pressure switch 7 is arranged in tight casing 2 connected in parallel with main winding 3A of motor 3 and short-circuits main winding 3A at excess pressure of coolant in tight casing 2. Fuse 6 is connected in series with main winding 3A and auxiliary winding 3B of motor 3 to interrupt current flow to said motor at over current that originates when pressure switch 7 short-circuits main winding 3A. ^ EFFECT: protection of element an engine operated at high pressure. ^ 6 cl, 8 dwg |
