Airflow-rate detecting device capable of detecting humidity
US-9759593-B2 · Sep 12, 2017 · US
Flow rate measuring device
US10030601B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10030601-B2 |
| Application number | US-201615264648-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 14, 2016 |
| Priority date | Sep 16, 2015 |
| Publication date | Jul 24, 2018 |
| Grant date | Jul 24, 2018 |
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- Title
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Abstract
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The present disclosure provides a flow rate measuring device including a flow rate detecting body, a humidity detecting body, and a base. The flow rate detecting body protrudes inside of an intake passage. The humidity detecting body protrudes inside of the intake passage at a position away from the flow rate detecting body. The base is connected to the flow rate detecting body and the humidity detecting body. The humidity detecting body holds a sensor chip that includes a humidity detecting element sensitive to the humidity of the intake air. A length, along a flow direction of the intake air, of an exposed portion of the humidity detecting body is defined as a referential length. The humidity detecting element exists within a range from an upstream end of the exposed portion of the humidity detecting body to a position of half the referential length.
First claim
Opening claim text (preview).
What is claimed is: 1. A flow rate measuring device comprising: a flow rate detecting body that protrudes inside of an intake passage through which an intake air to be taken in an internal combustion engine flows, the flow rate detecting body detecting a flow rate of the intake air; a humidity detecting body that protrudes inside of the intake passage at a position away from the flow rate detecting body, the humidity detecting body detecting a humidity of the intake air; and a base that is connected to the flow rate detecting body and the humidity detecting body, the base serving as a root portion of the flow rate detecting body and the humidity detecting body, wherein the humidity detecting body holds a sensor chip that includes a humidity detecting element sensitive to the humidity of the intake air, the humidity detecting element is disposed on a surface of the sensor chip and the humidity detecting body holds the sensor chip such that the humidity detecting element is exposed inside of the intake passage, a length, along a flow direction of the intake air, of an exposed portion of the humidity detecting body that is exposed inside of the intake passage is defined as a referential length, and the humidity detecting element exists within a range from an upstream end of the exposed portion of the humidity detecting body to a position of half the referential length. 2. The flow rate measuring device according to claim 1 , wherein a length, along the flow direction of the intake air, of an exposed portion of the flow rate detecting body that is exposed inside of the intake passage is defined as a supplemental referential length, and the humidity detecting element exists upstream of a position of half the supplemental referential length.
Assignees
Inventors
Classifications
for flow rate (air flow meters in air cleaners F02M35/021; circuit arrangements for generating control signals by measuring intake air flow F02D41/18) · CPC title
Air humidity · CPC title
by combined monitoring of two or more different engine parameters · CPC title
- F02D41/18Primary
by measuring intake air flow · CPC title
for characterising a multi-component mixture, e.g. for the composition such as humidity, density or viscosity · CPC title
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Frequently asked questions
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- What does patent US10030601B2 cover?
- The present disclosure provides a flow rate measuring device including a flow rate detecting body, a humidity detecting body, and a base. The flow rate detecting body protrudes inside of an intake passage. The humidity detecting body protrudes inside of the intake passage at a position away from the flow rate detecting body. The base is connected to the flow rate detecting body and the humidity…
- Who is the assignee on this patent?
- Denso Corp
- What technology area does this patent fall under?
- Primary CPC classification F02D41/18. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jul 24 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).