Thermal-type flow meter with bypass passage

Details Thermal-type flow meter with bypass passage Thermal-type flow meter with bypass passage

2005-02-08

2005-02-08

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Thermal type

C073S202500, C073S204220

Reexamination Certificate

active

06851311

ABSTRACT:
A flow measurement sensor accurately outputs signals even when pulsation flow is generated at high engine speed and also when pulsation flow accompanying reverse flow is generated. The flow measurement sensor has a flow measurement element which has a heater resistance pattern on one side of a plate-shaped member, and a bypass passage in which the flow measurement element is disposed, a first outlet through which fluid flowing along the surface of the flow measurement element flows out, and a second outlet through which fluid flowing along the back side of the flow measurement element flows out. The second outlet is positioned at a different location from the first outlet.

REFERENCES:
patent: 5892146 (1999-04-01), Kobayashi et al.
patent: 6253606 (2001-07-01), Yonezawa et al.
patent: 19655001 (2000-10-01), None
patent: 06-050783 (1994-02-01), None
patent: 09-304147 (1997-11-01), None
patent: 2001-183204 (2001-07-01), None
patent: 9914560 (1999-03-01), None
patent: WO 9953274 (1999-10-01), None
patent: WO 0179790 (2001-10-01), None

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