| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve silence, that is, to reduce fluid noise, while maintaining an existing function preventing the intrusion of hands and foreign matters, in a fan guard for a blowing device. <P>SOLUTION: This fan guard 250 is provided in a blowout port 6 of an engine-driven type heat pump 1 having a blowing fan 5, and composed of a plurality of crosspieces 110. In the fan guard 200, the crosspieces 110 are so formed that unit shapes 110a bent or curved are successively formed with respect to a reference line S with the crosspieces formed on the fan guard 200. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
