|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||415/049; 415/146; 415/158; 415/211|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 43 인용 특허 : 4|
The efficiency of a centrifugal compressor is optomized over a wide range of flow rates by providing a diffuser which is a combination of fixed vanes and a movable wall member and which throttles the diffuser passage in accordance with compressor load.
1. A centrifugal compressor including: (a) housing means having an inlet and an annular diffuser passage terminating at an outlet scroll; (b) impeller means rotatably mounted in said housing between said inlet and said diffuser passage; and (c) diffuser means in said diffuser passage and including: (1) a fixed vane diffuser having a mixing length at least one half the cover length of said fixed vane diffuser; (2) a movable annular member located upstream of said fixed vane diffuser for restricting said diffuser passage; and (3) means for moving ...