US 11,891,699 B2
Cold spray nozzle and cold spray device
Masahito Fujikawa, Kanagawa (JP); Hidenobu Matsuyama, Kanagawa (JP); Eiji Shiotani, Kanagawa (JP); Yoshitsugu Noshi, Kanagawa (JP); Hirohisa Shibayama, Kanagawa (JP); Koukichi Kamada, Kanagawa (JP); Naoki Okamoto, Kanagawa (JP); and Junichi Hamasaki, Kanagawa (JP)
Assigned to NISSAN MOTOR CO., LTD., Yokohama (JP)
Appl. No. 17/257,937
Filed by NISSAN MOTOR CO., LTD., Yokohama (JP)
PCT Filed Jul. 6, 2018, PCT No. PCT/JP2018/025754
§ 371(c)(1), (2) Date Jan. 5, 2021,
PCT Pub. No. WO2020/008637, PCT Pub. Date Jan. 9, 2020.
Prior Publication US 2021/0164108 A1, Jun. 3, 2021
Int. Cl. C23C 24/04 (2006.01); B05B 7/16 (2006.01)
CPC C23C 24/04 (2013.01) [B05B 7/16 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A nozzle for cold spray, the nozzle comprising:
a tubular nozzle main body having heat conductivity, the tubular nozzle main body configured to spray a raw material powder supplied from a cold spray apparatus, the tubular nozzle main body comprising:
a connecting portion having a first diameter, and
a rear end portion contiguous with the connecting portion and having a second diameter, the second diameter less than the first diameter; and
a cooling jacket surrounding the tubular nozzle main body and forming a flow path for refrigerant between the tubular nozzle main body and the cooling jacket, the cooling jacket being configured to cool the tubular nozzle main body via the refrigerant flowing through the flow path, the cooling jacket comprising:
a first seal retaining portion on a tip side of the tubular nozzle main body, and
a second seal retaining portion on a rear end side of the tubular nozzle main body;
a first seal member retained by the first seal retaining portion and directly contacting a tip portion of the tubular nozzle main body; and
a second seal member retained by the second seal retaining portion and directly contacting the rear end portion, the second seal member positioned between the connecting portion and the tip portion;
wherein the first seal retaining portion is joined with the tip portion of the tubular nozzle main body in a socket-and-spigot joint fashion.