PUMPING SYSTEM Russian patent published in 2003 - IPC

FIELD: materials testing facilities. SUBSTANCE: invention relates to high-pressure systems, particularly, to system with plunger pump designed for building high and accurately maintained liquid pressures. Proposed system contains mounting plate, housing, plunger connected with spindle, spindle nut, fixed cylinder accommodating plunger and hole for filling in liquid sample to be tested, spring, drive, consisting of motor and reduction gear to provide relative rotation and axial travel of plunger relative to cylinder and device to provided relative rotation of spindle and spindle nut. Pressure transmitter is made in form of indicator detecting relative displacement of cylinder and spindle nut. Volume transmitter is made in form of indicator detecting relative displacement of plunger and cylinder. Device for regulating sample temperature contains system with sufficient angular rigidity owing to cylindrical surfaces of partially fitted in cup, sleeve and bushing preventing end play of spindle nut. System for additionally stabilizing position of axis of rotation of spindle relative to cylinder is also provided. EFFECT: possibility of metering thermodynamic parameters of liquids at different tests. 2 cl, 3 dwg