| 摘要 |
PCT No. PCT/SE85/00488 Sec. 371 Date Jul. 7, 1986 Sec. 102(e) Date Jul. 7, 1986 PCT Filed Nov. 27, 1985 PCT Pub. No. WO86/03290 PCT Pub. Date Jun. 5, 1986.A liquid media metering device of the type having a plunger body acting in a chamber between an inlet and an outlet and having a conical closing part to close the outlet and a piston part at its other end. A clearance between the piston part and the chamber allows liquid to flow past the piston. A sealing ring is applied with a light force against a cylindrical surface opposing the conical part surface such that in an uninfluenced condition and by means of friction it is retained in a given position in relation to the cylindrical surface. |
