| 摘要 |
PCT No. PCT/JP96/02288 Sec. 371 Date Apr. 23, 1997 Sec. 102(e) Date Apr. 23, 1997 PCT Filed Aug. 12, 1995 PCT Pub. No. WO97/08000 PCT Pub. Date Jun. 3, 1997A viscous heater is provided which can be manufactured readily and less expensively. For instance, it includes a rear housing 6 which is constituted by a rear plate 2 and a rear housing body 3. The rear plate 2, the rear housing body 3 and a front housing 1 are overlapped and fastened by a through bolt 5, and thereby a rear water jacket RW is formed by the rear plate 2 and the rear housing body 3.
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