Oil removal apparatus
US-10190456-B2 · Jan 29, 2019 · US
Electrostatic oil mist separator for internal combustion engine
US11073055B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11073055-B2 |
| Application number | US-201816225981-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2018 |
| Priority date | Dec 26, 2017 |
| Publication date | Jul 27, 2021 |
| Grant date | Jul 27, 2021 |
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- Title
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- Abstract
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Abstract
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An electrostatic oil mist separator for an internal combustion engine includes a positive plate and a negative plate facing each other, a filter arranged between the positive plate and the negative plate, a case having an inlet and an outlet and houses the positive plate, the negative plate, and the filter, and a voltage generator. The electrostatic oil mist separator is configured to cause blow-by gas to flow from the inlet to the outlet between the positive plate and the negative plate in a state in which the voltage generator is applying a voltage across the positive plate and the negative plate, thereby separating oil mist from the blow-by gas by electrostatic adsorption force. At least one of the positive plate and the negative plate is made of a metal plate and includes a plurality of protrusions that are formed by cutting and raising the metal plate.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electrostatic oil mist separator for an internal combustion engine, comprising: a positive plate and a negative plate facing each other; a filter comprising an electrically insulating material and arranged between the positive plate and the negative plate; a case having an inlet and an outlet and houses the positive plate, the negative plate, and the filter; and a voltage generator configured to apply a voltage across the positive plate and the negative plate, wherein the electrostatic oil mist separator is configured to cause blow-by gas to flow from the inlet to the outlet between the positive plate and the negative plate in a state in which the voltage generator is applying a voltage across the positive plate and the negative plate, thereby separating oil mist from the blow-by gas by electrostatic adsorption force, and at least one of the positive plate and the negative plate is made of a metal plate and includes a plurality of protrusions that are formed by cutting and raising the metal plate. 2. The electrostatic oil mist separator for an internal combustion engine according to claim 1 , wherein both the positive plate and the negative plate each have the protrusions. 3. The electrostatic oil mist separator for an internal combustion engine according to claim 1 , wherein each protrusion has a cut surface facing toward an upstream side in a direction of flow of blow-by gas from the inlet to the outlet. 4. The electrostatic oil mist separator for an internal combustion engine according to claim 1 , wherein at least one of the positive plate and the negative plate has a metal lath-type shape having the protrusions. 5. The electrostatic oil mist separator for an internal combustion engine according to claim 1 , wherein at least one of the positive plate and the negative plate is a punched metal plate having the protrusions.
Assignees
Inventors
Classifications
- B03C3/08Primary
characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream · CPC title
connected in parallel · CPC title
located in the filter, e.g. special shape of the electrodes · CPC title
- F01M13/04Primary
having means for purifying air before leaving crankcase, e.g. removing oil · CPC title
for use in or with vehicles · CPC title
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- What does patent US11073055B2 cover?
- An electrostatic oil mist separator for an internal combustion engine includes a positive plate and a negative plate facing each other, a filter arranged between the positive plate and the negative plate, a case having an inlet and an outlet and houses the positive plate, the negative plate, and the filter, and a voltage generator. The electrostatic oil mist separator is configured to cause blo…
- Who is the assignee on this patent?
- Toyota Boshoku Kk
- What technology area does this patent fall under?
- Primary CPC classification B03C3/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 27 2021 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).