Patent ID: 11947263
Assignee: GIGAPHOTON INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC G  F  H | IPC F  G  H

Claim 10:
11. A laser chamber of a discharge-excitation-type gas laser apparatus, comprising:
a container which contains laser gas therein;
a pair of discharge electrodes arranged in the container;
a cross flow fan configured to supply the laser gas to a discharge space between the discharge electrodes, the cross flow fan including a rotation shaft with which the cross flow fan rotates in a predetermined rotation direction and a plurality of blades, each longitudinal direction of which is parallel to an axial direction of the rotation shaft; and
a stabilizer arranged outside a rotation trajectory of the cross flow fan, and arranged such that a difference between a maximum position and a minimum position of an end portion in the rotation direction on a side opposite to the rotation direction is larger than 0 and is smaller than an interval of two blades adjacent to each other among the plurality of blades,
wherein the stabilizer includes a guide surface which configures a part of a wall surface of a flow path of the laser gas flowing toward the discharge space and on which a plurality of grooves are formed.