Title:
AIR FLOW RATE MEASURING APPARATUS
Document Type and Number:
Japanese Patent JP3242286
Kind Code:
B2
Abstract:
PURPOSE: To obtain a highly reliable air flow rate measuring apparatus.
CONSTITUTION: The flow rate measuring apparatus comprises a main channel 2 and a sub-channel 3 for passing suction air, a heating element 4 and a temperature-sensing resistance element 5 arranged in the sub-channel 3 in order to measure the flow rate of air, and a circuit module part 10 equipped with a suction air temperature detection element and the compositional member of sub-channel 3, wherein the compositional member of sub-channel is provided with a member for protecting the suction air temperature detection element. With such structure, the highly reliable air flow rate measuring apparatus can be obtained.
Inventors:
Takashi Kakuhiro
Tadao Suzuki
Mamoru Tsumagari
Shinya Igarashi
Takayuki Saito
Tadao Suzuki
Mamoru Tsumagari
Shinya Igarashi
Takayuki Saito
Application Number:
JP10341295A
Publication Date:
December 25, 2001
Filing Date:
April 27, 1995
Export Citation:
Assignee:
株式会社日立製作所
株式会社日立カーエンジニアリング
株式会社日立カーエンジニアリング
International Classes:
G01F1/68; F02D35/00; G01F1/684; G01K7/18; (IPC1-7): G01F1/684
Domestic Patent References:
| JP7110251A | ||||
| JP314426U |
Attorney, Agent or Firm:
Yasuo Sakuta (1 outside)