PRESSURE DROP GAUGE Russian patent published in 1995 - IPC

FIELD: instrument engineering. SUBSTANCE: gauge has housing 1 with two supplying connecting pipes 2. Plunger 6 and pressure-tight torsion lead with spline shaft are interconnected and received in the space of the housing. The internal space of the housing is made up as the first and the second mutually perpendicular crossing passages 3,4 and passage 5 which connects these passages. Plunger 6 has shank 7 and mounted inside passage 4. Pressure-tight torsion lead is received in passage 3. The spline shaft is provided with intermediate bushing 13 having inner and outer connecting pipes which engage with inner slots of slot bushing 11 of the lever. The bushing has slit 12 whose width is grater than or equal to the diameter of tops of the splines of the spline shaft. The free end of the lever is received in groove 8 made in shank 7 of the plunger. EFFECT: heightened accuracy of measurements. 2 dwg