The weak point of any piston pump — automobile, motorcycle or Bicycle, as is well known, piston, or rather, leather cuff, and the main fault is a loose fit it to the cylinder walls. The fact that the skin shrinks, warps, cracks.
The case may help washer star-shaped cut from an elastic foil or plastic. The dimensions of the washer are determined by the diameter of the cylinder of the pump and the height of the piston. The part is placed under the nut of the piston, the petals of the pressed ribs cuffs to the walls of the cylinder. As the experience of operation of the pump with such a washer, the cuff works great the wear, while maintaining the pump output constant.
S. JAKAB, Lvovskaya oblast
Recommend to read
FROM R-1 TO “SATELLITE”
This year — 100 years since the birth of S. P. Korolev, the father of the Soviet space program, the outstanding designer of the first artificial satellites and spacecraft, the Creator of...
TEMPLATE – SMOOTHER
The slats at different heights, the distance between them varies — and is already spoiled the impression of a botched fence. To avoid this, I made a controller-gon, on a vertical bracket...
