Title:
【発明の名称】内燃機関の熱線式空気流量検出装置
Document Type and Number:
Japanese Patent JP2552320
Kind Code:
B2
Abstract:
A hot wire air flow meter arrangement comprises a primary (3a) and an auxiliary (3b) air flow path defined in the air induction passage (3). A hot wire (7) is provided in the primary air flow path (3a) for monitoring air flow rate therethrough. A flow restricting means (9) is provided in the auxiliary air flow path (3b) for restricting air flow therethrough. The flow restricting means is selectively operative so that it is effective for restricting air flow in a low engine load condition to force the major part of induction air to flow through the primary air flow path (3a) and is not effective at high engine load range so as to minimize flow resistance for induction of sufficient amount of air to an internal combustion engine (1).
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Inventors:
FUJIWARA KOICHI
Application Number:
JP4317288A
Publication Date:
November 13, 1996
Filing Date:
February 25, 1988
Export Citation:
Assignee:
YUNISHIA JETSUKUSU KK
International Classes:
G01F1/68; F02D35/00; F02D41/00; F02D41/18; F02D45/00; G01F1/684; G01F1/696; G01F5/00; G01F7/00; (IPC1-7): F02D45/00; G01F1/68
Domestic Patent References:
| JP54111512U | ||||
| JP60174838U |
Attorney, Agent or Firm:
Fujiya Shiga (1 person outside)