Air flow rate measuring device
US-2017059381-A1 · Mar 2, 2017 · US
Airflow meter
US9964422B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9964422-B2 |
| Application number | US-201514963784-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 9, 2015 |
| Priority date | Dec 9, 2014 |
| Publication date | May 8, 2018 |
| Grant date | May 8, 2018 |
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- Title
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Abstract
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An airflow meter includes a flow rate sensor for measuring a flow rate of intake air sucked into an engine, a humidity sensor that outputs an intake air humidity signal in accordance with humidity of the intake air, an intake air temperature sensor that outputs an intake air temperature signal in accordance with temperature of the intake air, and a humidity correction section that corrects the intake air humidity signal based on the intake air temperature signal.
First claim
Opening claim text (preview).
What is claimed is: 1. An airflow meter comprising: a flow rate sensor for measuring a flow rate of intake air sucked into an engine; a humidity sensor that outputs an intake air humidity signal in accordance with humidity of the intake air; an intake air temperature sensor that outputs an intake air temperature signal in accordance with temperature of the intake air; and a humidity correction section that corrects the intake air humidity signal based on the intake air temperature signal. 2. The airflow meter according to claim 1 , further comprising a passage forming member that forms a passage through which part of the intake air flows, the flow rate sensor being disposed within the passage forming member, the intake air temperature sensor being disposed outside the passage forming member. 3. The airflow meter according to claim 1 , further comprising passage forming member that forms a passage through which part of the intake air flows, the flow rate sensor being disposed within the passage forming member, the intake air humidity sensor being disposed on a sensor board disposed inside the passage. 4. The airflow meter according to claim 1 , further comprising a passage forming member that forms a passage through which part of the intake air flows, the intake air humidity sensor being disposed inside the passage formed within the passage forming member.
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Classifications
for measuring temperature of moving fluids or granular materials capable of flow · CPC title
involving digital counting · CPC title
Measuring a proportion of the volume flow · CPC title
Devices for measuring pulsing fluid flows · CPC title
Circuits therefor, e.g. constant-current flow meters · CPC title
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- What does patent US9964422B2 cover?
- An airflow meter includes a flow rate sensor for measuring a flow rate of intake air sucked into an engine, a humidity sensor that outputs an intake air humidity signal in accordance with humidity of the intake air, an intake air temperature sensor that outputs an intake air temperature signal in accordance with temperature of the intake air, and a humidity correction section that corrects the …
- Who is the assignee on this patent?
- Denso Corp
- What technology area does this patent fall under?
- Primary CPC classification G01F1/684. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 08 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).