To provide a compact electromagnetic pump by preventing a cavitation from being formed at the entrance of the electromagnetic pump.
An electromagnetic pump 100 includes, in a casing 1, a stainless steel-made outer cylinder 2, a stainless steel-made inner cylinder 3 arranged in the outer cylinder 2, and an electromagnetic coil 4 arranged around a periphery of the outer cylinder 2. The outer cylinder 2 is in a truncated cone shape on the whole, and has a large diameter on the entrance side and a small diameter on the exit side. Similarly, the inner cylinder 3 also has a large diameter on the entrance side and a small diameter on the exit side. A duct 5 is formed between the outer cylinder 2 and inner cylinder 3. The radial sectional area of the duct 5 is large on the entrance side and small on the exit side. In the electromagnetic pump 100, the duct 5 has the large sectional area on the entrance side, and so a flow velocity of liquid metal decreases on the entrance side to make pressure loss sufficiently small; and therefore, effects of totally preventing a cavitation from being formed at the electromagnetic pump 100 are obtained.
MATSUSHITA IZURU
HORIIKE HIROSHI
MURATA ISAO
HOASHI EIJI
SUZUKI SACHIKO
KATO ITSURO
UNIV OSAKA
| JPS62178153A | 1987-08-05 | |||
| JPS6380759A | 1988-04-11 | |||
| JPH01222649A | 1989-09-05 | |||
| JP2008141870A | 2008-06-19 | |||
| JPS62189969A | 1987-08-19 | |||
| JP2002064000A | 2002-02-28 | |||
| JPS60125599U | 1985-08-23 | |||
| JPH06209561A | 1994-07-26 |
| US3135208A | 1964-06-02 | |||
| US4828459A | 1989-05-09 |
Jun Takamura
Next Patent: CONTROL DEVICE, CONTROL SYSTEM, AND CONTROL METHOD