US 12,221,855 B2
Electromagnetic-mechanical locking device applied to subsurface safety valve
Felipe Gherren Noel, Petropolis (BR); Giancarlo Vilela De Faria, Rio de Janeiro (BR); Leonardo Gonçalves Candido Gomes, Rio de Janeiro (BR); and Ricardo Naoyuki Alves De Moraes Sawaguchi, Rio de Janeiro (BR)
Assigned to Ouro Negro Tecnologias Em Equipamentos Industriais S/A, Rio de Janeiro (BR)
Appl. No. 18/013,068
Filed by OURO NEGRO TECNOLOGIAS EM EQUIPAMENTOS INDUSTRIAIS S/A, Rio de Janeiro (BR)
PCT Filed Jun. 29, 2021, PCT No. PCT/BR2021/050286
§ 371(c)(1), (2) Date Dec. 27, 2022,
PCT Pub. No. WO2022/000062, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. BR102020013476-0 (BR), filed on Jun. 30, 2020.
Prior Publication US 2023/0332483 A1, Oct. 19, 2023
Int. Cl. E21B 34/06 (2006.01); F16K 31/04 (2006.01); F16K 31/06 (2006.01)
CPC E21B 34/066 (2013.01) [F16K 31/04 (2013.01); F16K 31/06 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An electromagnetic-mechanical locking device applied to a subsurface safety valve, incorporating an electromagnetic-mechanical coupler, comprising:
an electromagnet (4), located at one end of a sleeve (2), ferromagnetic bulkhead (5), adjacent to said electromagnet and in solidarity to a mobile part (6), and locking element (7) that fits into a cavity (8) provided in a flow tube (3);
said electromagnetic-mechanical coupler allowing the axial movement of the sleeve (2), generated by an electric motor with a hollow shaft having rotary movement, to be transmitted to the flow tube (3), compressing a spring (9) coupled to the mobile part (6); and
a flow shutter (10), said compressing spring promoting force contrary to the opening of the flow shutter of the valve.