Pressure pulse generator
AssigneeCargine Engineering AB
InventorMats Hedman
Life of this patent
Estimating the term…
Abstract
A pressure pulse generator comprising a circuit (12) filled with a pressure iluid, and at least one communication channel (15) that is connected to the circuit and via which the pressure fluid can flow into and out of the circuit. The pressure pulse generator comprises a first pair (8, 9) and a second pair (10, 11) of electrically controlled valves that are connected in series, and the first pair of valves (8,9) is arranged in said circuit (12) upstream the at least one communication channel (15), and the second pair of valves (10, 11) is arranged in said circuit (12) downstream the at least one communication channel (15).
Claims24
A pressure pulse generator comprising
- a circuit (12) filled with pressure fluid and
- at least one communication channel (15) that is connected to the circuit (12) and through which the pressure fluid can flow into and out of the circuit (12), characterised in that it comprises
- a first pair (8,9) and a second pair (10,11) of electrically controlled valves that are connected in series, and
- that the first pair of valves (8,9) is arranged in said circuit (12) upstream the at least one communication channel (15), and
- that the second pair of valves (10,11) is arranged in said circuit downstream the at least one communication channel (15).
A method for controlling a pressure pulse generator comprising
- a circuit (12) filled with a pressure fluid, and
- at least one communication channel (15) that is connected to the circuit (12) and via which the pressure fluid can flow into and out of the circuit (12), characterised in that it comprises
- controlling, by means of electrical signals, the valves of a first pair (8,9) and a second pair (10,11) of valves that are connected in series, according to a certain sequence,
- the first pair of valves (8,) being arranged in said circuit (12) upstream the at least one communication channel (15), and
- said second pair of valves (10,11) being arranged in said circuit (12) downstream the at least one communication channel (15).
A pressure pulse generator element, comprising a pair of valves (8,9,10,11) that comprises a first valve (8,10) and a second valve (9,11), characterised in that the first valves (8, 10) and the second valves (9,11) are connected by means of two parallel channels (16,17) that lead from a first valve (8,10) of the pair of valves to a second valve (9,11) of the pair of valves, and that each valve (8,9,10,11) is arranged to execute a closing and opening of each channel (16,17).
Dependencies are inferred from the claim text.