| 摘要 |
PCT No. PCT/FI89/00073 Sec. 371 Date Oct. 11, 1990 Sec. 102(e) Date Oct. 11, 1990 PCT Filed Apr. 21, 1989 PCT Pub. No. WO89/10214 PCT Pub. Date Nov. 2, 1989.The invention relates to an apparatus for flushing hydraulic pipe systems of so called normal size. Between the pipe system (1) and a hydraulic aggregate (2) a dual cylinder (8) is connected, having a common piston shaft (12) such that when the hydraulic aggregate (2) pumps pressure fluid into one of the chamber parts (15, 16) containing the piston shaft (12), the other corresponding chamber part (16, 15) and one (13) of the two outer chamber parts (13, 14) feeds in flushing fluid to the inlet (6) of the pipe system (1) while the other (14) of the outer chamber parts receives fluid from the outlet of the pipe system (1) through a filter (23) and the remainder of the outlet flow is directed back to the hydraulic aggregate (2). In this manner, a flushing volume considerably exceeding the volume capacity of the hydraulic aggregate (2) is attained.
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