Protective device for a mass flow sensor disposed in an air intake channel
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0979738
(2002-06-05)
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우선권정보 |
DE-0016642 (2000-04-04) |
국제출원번호 |
PCT/DE01/01279
(2001-03-31)
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국제공개번호 |
WO01/75402
(2001-10-11)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
3 인용 특허 :
3 |
초록
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Known devices for measuring the mass of a flowing medium can be impaired in their measurement precision by fluid components carried along in the medium. The device according to the invention has a ricochet body, which is disposed upstream of the measuring element and is at least partially encompasse
Known devices for measuring the mass of a flowing medium can be impaired in their measurement precision by fluid components carried along in the medium. The device according to the invention has a ricochet body, which is disposed upstream of the measuring element and is at least partially encompassed by an outer ring, where the outer ring constitutes a section inside the outer ring that tapers in the flow direction in order to deflect fluid components, which are carried along in the flow, away from the measuring element by means of the ricochet body. The device is useful for measuring the mass of a flowing medium, in particular for measuring the intake air mass of internal combustion engines.
대표청구항
▼
1. A device for determining at least one parameter of a medium flowing in a line, which medium is in the form of a gas/fluid mixture, in particular the intake air of internal combustion engines, comprising a measurement housing (17) provided in the line, at least one measuring element (21) dispo
1. A device for determining at least one parameter of a medium flowing in a line, which medium is in the form of a gas/fluid mixture, in particular the intake air of internal combustion engines, comprising a measurement housing (17) provided in the line, at least one measuring element (21) disposed in the measurement housing and around the measurement housing and measuring element the flowing medium circulates, the measuring element being operable to determine parameters of the medium flowing in the line, a ricochet body (25) disposed upstream of the measuring element, an outer ring (30) disposed at least partially between the ricochet body (25) and the measurement housing (17), and a tapering section (31) inside the outer ring (30) constituted by the outer ring (30). 2. The device according to claim 1, wherein the ricochet body (25) is prismatic in form. 3. The device according to claim 1, wherein the ricochet body (25) is aerodynamically formed. 4. The device according to claim 1, wherein the outer ring (30) is aerodynamically formed. 5. The device according to claim 4, wherein the outer ring (30) at least partially encompasses the ricochet body (25), at a distance (38). 6. The device according to claim 4, wherein the outer ring (30) at least partially encloses the measurement housing (17), at a distance. 7. The device according to claim 1, wherein the outer ring (30) is embodied as S-shaped. 8. The device according to claim 7, wherein the outer ring (30) at least partially encompasses the ricochet body (25), at a distance (38). 9. The device according to claim 7, wherein the outer ring (30) at least partially encloses the measurement housing (17), at a distance. 10. The device according to claim 1, wherein the outer ring (30) at least partially encompasses the ricochet body (25), at a distance (38). 11. The device according to claim 10, wherein the outer ring (30) at least partially encloses the measurement housing (17), at a distance. 12. The device according to claim 1, wherein the outer ring (30) at least partially encloses the measurement housing (17), at a distance.
이 특허에 인용된 특허 (3)
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Nishimura Yutaka (Katsuta JPX) Oyama Yoshishige (Katsuta JPX), Air flow meter.
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Lauterbach Heinz (Esslingen DEX) Widera Jrg (Stuttgart DEX), Apparatus for measuring the mass of a flowing medium.
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Kaiser Hermann (Utica MI) Olson Jerry A. (Dearborn MI), Hot film/swirl fluid flowmeter.
이 특허를 인용한 특허 (3)
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Kouno,Yasushi; Kaifu,Teruaki; Yamaguchi,Junzo, Apparatus for measuring flow characteristics.
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Frie, Werner Rudolf; Pesahl, Stefan; Setescak, Stephen; Steuber, Frank, Device with an air intake manifold and an air mass sensor arrangement inserted therein.
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Noui-Mehidi, Mohamed Nebil, Pulsating flow meter having a bluff body and an orifice plate to produce a pulsating flow.
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