Patent ID: 11913442
Assignee: SAMOA INDUSTRIAL, S.A.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A low pressure starting device for pneumatic pump with a pivoting directional air control valve, said low pressure starting device comprising:
a retractable push piston driven by a variable tension spring which presses on the pivoting directional air control valve, during start-up, and in start position;
a sealing gasket; and
a spring stop;
wherein said low pressure starting device is driven by an electronic pressure control system which allows starting pressure to be varied automatically, and
wherein the spring stop holds the pivoting directional air control valve in its start position until it reaches a required minimum start pressure, and once the required minimum starting pressure is reached, the low pressure starting device pulls back against spring pressure and remains in this position until pressure in the pivoting directional air control valve is released when an air motor is shut down, at which time said pivoting directional air control valve returns to its start position.