Base material with cooling air hole

Details Base material with cooling air hole Base material with cooling air hole

2006-05-30

2006-05-30

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With separating means or guard for solid matter in working...

C416S09700R

Reexamination Certificate

active

07052233

ABSTRACT:
A base material (2) with a cooling air hole (1) is disclosed, means being present which prevent particles (5), which are located in the cooling air (4) which flows through the cooling air hole (1) during the operation of the cooling air hole (1), from closing the cooling air hole (1). In this arrangement, the means can consist in the edge of the cooling air hole (1) being uneven or having a ridge (3) or the cooling air hole (1) being star-shaped, ellipsoidal or linear or the cooling air hole (1) being circular and having lateral slots (7).

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