国家/地区 美国（3）
IPC部 F（3）
IPC大类 F01（3）
IPC小类 F01D（2）
IPC F01D005/28（2）
发明人
公开年 2021（2）
申请年 2021（3）
专利权人

Airfoil e.g. fan blade for fan section of turbine engine, has matrix composite that is provided with toughness that is greater than toughness of first material, and edge guard that is provided with heating conduit arranged within portion of edge guard.

SUN C, KRAY N J, ZHENG L

Air purifying device for separating materials from air flow, has collector plates arranged downstream of set of ionization needles, where device generates ionization corona discharge by positive ionization voltage led to needles.

TULKKI J, JUHANI T, SKOGSTER N, MAKKONEN P

Blade comprises metallic substrate and coating system atop the substrate at the tip and comprises first layer of nickel, abrasive layer, comprises matrix and abrasive is partially embedded in the matrix.

JOOST W J, MAALOUF F S, MARTEL N T