PANIC VALVE INTEGRATED IN PIVOT PIN OF PUMP

• Main Authors: KUTZER, Hans Peter, ELGAMAL, Haytham, ZUBEIDAT, Abdalhameed
• Format: Patent
• Language: English; French; German
• Published: 21.10.2020
• Subjects: BLASTING; CRANKCASE VENTILATING; ENGINE PLANTS IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; LUBRICATING; LUBRICATING INTERNAL COMBUSTION ENGINES; LUBRICATING OF MACHINES OR ENGINES IN GENERAL; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; STEAM ENGINES; THERMAL INSULATION IN GENERAL; WEAPONS

Disclosed is a pump for dispensing lubricant to a system. The pump includes: a housing having an inlet for inputting lubricant into the housing and an outlet for delivering the lubricant therefrom. A control slide is pivotable about a pivot pin within the housing in a displacement increasing direction and a displacement decreasing direction to adjust pump displacement. A resilient structure biases the control slide in the displacement increasing direction. A pressure relief valve is mounted to the pivot pin and positioned along an outflow path leading pressurized lubricant from the control slide to the outlet. The pressure relief valve is biased in a closing direction and has a pressure receiving surface receiving pressure from the lubricant in the outflow path to urge the pressure relief valve in an opening direction. Opening the relief opening allows outflow of lubricant to relieve pressure in the outflow path.