Diffuser for a turbo pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 2, 2005
Grant Date -
Apr 15, 2004
app pub date -
Aug 8, 2003
filing date -
Oct 9, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To suppress degradation of the pump efficiency while preventing the diffuser from stalling on a turbo pump Opening 48 is provided at a specified position in the cord length direction of vane 42 of diffuser 44. Opening 48 communicates with the adjacent diffuser flow passage to form a flow circulating to the entrance of the diffuser via this opening 48 when the flow rate drops, thus to prevent stalling by increasing the apparent flow rate. The size of opening 48 is also adjusted in correspondence with the operating condition of said pump. The size of opening 48 should be adjusted to be small enough not to case stalling at the lowest flow rate expected by test operating the pump. The efficiency degradation due to the provision of the opening can be suppressed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully