Electromagnetic Actuator and Fluid Valve with Such an Actuator
US-2015014560-A1 · Jan 15, 2015 · US
Solenoid device
US9371932B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9371932-B2 |
| Application number | US-201514633540-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2015 |
| Priority date | Mar 28, 2014 |
| Publication date | Jun 21, 2016 |
| Grant date | Jun 21, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
A solenoid device includes a plunger driven in an axial direction, a wall portion arranged to oppose the plunger in the axial direction, and a respiratory pore cover covering an opening of a respiratory pore of the wall portion. A volume variable chamber is defined between the plunger and the wall portion. The respiratory pore cover defines a communication space communicated to the respiratory pore, and an opening which causes the communication space to communicate with an exterior space. A volume of the communication space is larger than a predetermined volume of fluid that flows through the respiratory pore from or into the volume variable chamber by a predetermined movement of the plunger.
First claim
Opening claim text (preview).
What is claimed is: 1. A solenoid device comprising: a plunger driven in an axial direction; a wall portion arranged to oppose the plunger in the axial direction, wherein a volume variable chamber is defined between the plunger and the wall portion, a volume of the volume variable chamber being changed by movement of the plunger, the wall portion having a respiratory pore which causes the volume variable chamber to communicate with outside; and a respiratory pore cover covering the respiratory pore from an outer side of the volume variable chamber, wherein the respiratory pore cover defines a communication space communicated to the respiratory pore, and an opening which causes the communication space to communicate with an exterior space, and a volume of the communication space is larger than a predetermined volume of fluid that flows through the respiratory pore from or into the volume variable chamber by a predetermined movement of the plunger. 2. The solenoid device according to claim 1 , wherein the opening is defined between the exterior space and the communication space, and the opening is opened downward in a gravity direction. 3. The solenoid device according to claim 1 , wherein the communication space has a bent part in a passage extending from the opening to the respiratory pore, so as to define a labyrinth shape. 4. The solenoid device according to claim 1 , wherein the respiratory pore cover is made of magnetic material.
Assignees
Inventors
Classifications
with ball-shaped valve members · CPC title
- F16K31/0637Primary
with ball shaped valve members · CPC title
multiple way valves · CPC title
Electromagnetically actuated valves · CPC title
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- What does patent US9371932B2 cover?
- A solenoid device includes a plunger driven in an axial direction, a wall portion arranged to oppose the plunger in the axial direction, and a respiratory pore cover covering an opening of a respiratory pore of the wall portion. A volume variable chamber is defined between the plunger and the wall portion. The respiratory pore cover defines a communication space communicated to the respiratory …
- Who is the assignee on this patent?
- Denso Corp, Hamanakodenso Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16K31/0637. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 21 2016 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).