Compressor arrangement with bypass means for preventing freezing of the cooling unit
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16L-053/00
F04B-039/06
F04B-025/00
출원번호
US-0093156
(2006-11-10)
등록번호
US-9022068
(2015-05-05)
우선권정보
DE-10 2005 053 949 (2005-11-11)
국제출원번호
PCT/EP2006/010780
(2006-11-10)
§371/§102 date
20081029
(20081029)
국제공개번호
WO2007/054328
(2007-05-18)
발명자
/ 주소
Achatz, Christian
Schneider, Klaus-Michael
Pröll, Gerhard
출원인 / 주소
Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH
대리인 / 주소
Barnes & Thornburg LLP
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
Compressor arrangement for generating compressed air using a motor-operator compressor unit, downstream of which at least one cooler unit is connected for cooling the generated compressed air, which enters the cooler unit via at least one inlet, flows there through a cooling structure, from a plural
Compressor arrangement for generating compressed air using a motor-operator compressor unit, downstream of which at least one cooler unit is connected for cooling the generated compressed air, which enters the cooler unit via at least one inlet, flows there through a cooling structure, from a plurality of cooling passages connected in parallel and leaves the cooler unit via at least one outlet, wherein a permanently open bypass pipe is provided between the region of the inlet and the region of the outlet, the inner cross section of which bypass pipe is matched to the delivery capacity of the compressor unit and to the pressure difference between inlet and outlet such that the bypass pipe, at normal ambient temperatures, causes a higher flow resistance than the cooling structure, whereas, as freezing of the cooling structure progresses, the compressed air flows increasingly via the bypass pipe.
대표청구항▼
1. A compressor arrangement comprising: a motor-driven compressor unit;at least one cooler unit located downstream of the motor-driven compressor unit and being configured to cool compressed air generated by the motor-driven compressor unit, wherein the generated compressed air enters into the at le
1. A compressor arrangement comprising: a motor-driven compressor unit;at least one cooler unit located downstream of the motor-driven compressor unit and being configured to cool compressed air generated by the motor-driven compressor unit, wherein the generated compressed air enters into the at least one cooler unit via at least one inlet, flows through a cooling structure included in the at least one cooler unit and around which cooling air flows, and leaves the at least one cooler unit via at least one outlet, anda permanently open bypass pipe provided between a region of the at least one inlet and a region of the at least one outlet, an inner cross section of the bypass pipe being matched to a delivery capacity of the motor-driven compressor unit and to a pressure difference between the at least one inlet and the at least one outlet in such a way that the bypass pipe generates a higher flow resistance than the cooling structure at normal ambient temperatures, whereas, with progressive freezing of the cooling structure, the generated compressed air flows to an increasing extent via the bypass pipe to maintain the compressed air generation with a minimum loss of cooling and delivery capacity,a wall of the bypass pipe consisting of at least one dewatering and/or safety valve,wherein, the bypass pipe is arranged relative to the at least one cooler such that the bypass pipe is situated in a flow path of the cooling air which flows through the at least one cooler unit,wherein the inner cross sectional dimension of the bypass pipe is selected so as to provide automatic regulating action based on dimensioning of the bypass pipe such that, in the event of a freezing of the at least one cooler unit which no longer allows compressed air to pass through, a pressure difference between the two ends of the bypass pipe rises to a maximum of 0.5 bar,wherein the bypass pipe does not freeze under conditions that freeze the at least one cooler unit because the bypass pipe is heated by the compressed air itself and by flow friction in the bypass pipe, andwherein the motor-driven compressor unit is of multi-stage construction including multiple compressor stages, wherein the compressor arrangement includes a plurality of cooler units of which the at least one cooler unit is one cooler unit of the plurality of cooler units, wherein each cooler unit in the plurality of cooler units is positioned downstream of a corresponding compressor stage of the multiple compressor stages, with each of the plurality of cooler units including at least one bypass pipe configured to operate in the same manner relative to its corresponding compressor stage as the bypass pipe is configured to operate in the at least one cooler unit. 2. The compressor arrangement as claimed in claim 1, wherein the bypass pipe is detachably fastened to the at least one cooling unit. 3. The compressor arrangement as claimed in claim 1, wherein the bypass pipe is either a vertically or horizontally aligned straight pipe line or a hose pipe. 4. The compressor arrangement as claimed in claim 1, wherein, when the at least one cooler unit is completely frozen up, the entire delivery capacity of the compressor unit positioned upstream is conducted via the associated bypass pipe, and wherein, when the freezing up is eliminated, an initial state before the freezing is automatically re-established. 5. The compressor arrangement as claimed in claim 1, wherein the bypass pipe is integrated into the at least one cooler unit. 6. The compressor arrangement as claimed in claim 1, wherein the bypass pipe is produced by casting. 7. The compressor arrangement as claimed in claim 1, wherein, the bypass pipe is configured to generate a nozzle function.
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이 특허에 인용된 특허 (6)
Goettel, Walter E.; Cunkelman, Brian L.; Wagner, Daniel G.; Drummond, Roger, Aftercooler bypass means for a locomotive compressed air system.
Marsh, Gregory A.; Walter, Brian L.; Valentine, Peter L.; Aggarwal, Mahesh C.; Armbruster, Jr., Robert A.; Do, Vinh K., Temperature control for turbocharged engine.
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