Fluid reaction surfaces (i.e. – impellers) – Protective screen or guard – Water or marine propellers
Patent
1997-12-09
2000-01-25
Lopez, F. Daniel
Fluid reaction surfaces (i.e., impellers)
Protective screen or guard
Water or marine propellers
4151212, 415119, 415191, 415195, 4152082, 4152101, 4152112, 415220, 41742314, F01D 102
Patent
active
06017191&
ABSTRACT:
This invention relates to an axial fan housing having a metallic shielding grating covering an air passage opening, wherein the grating is formed with a series of vane-like guide bars arranged in two or more concentric circular series. The number of guide bars in each circular concentric series increases from the radially inner series to the radially outer series of guide bars.
REFERENCES:
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patent: 5259726 (1993-11-01), Bacria
patent: 5391056 (1995-02-01), Wang
patent: 5460485 (1995-10-01), Sugiyama
patent: 5460571 (1995-10-01), Kato et al.
patent: 5498130 (1996-03-01), Wakley et al.
patent: 5577888 (1996-11-01), Capdevila et al.
patent: 5601412 (1997-02-01), Vice
patent: 5695318 (1997-12-01), Harmsen
Lopez F. Daniel
Papst-Motoren GmbH & Co. KG
Shanley Matthew T.
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