Bogie for high-speed railway vehicle
US-2016362120-A1 · Dec 15, 2016 · US
Vibration control device for railroad vehicle
US8997950B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8997950-B2 |
| Application number | US-201213991849-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 30, 2012 |
| Priority date | May 30, 2011 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A vibration control device for railroad vehicle includes an actuator with a cylinder coupled to a truck of a railroad vehicle, a piston, a rod coupled to the piston and a vehicle body, a rod-side chamber and a piston-side chamber in the cylinder, a tank, a first on-off valve disposed at an intermediate position of a first passage communicating between the rod-side chamber and the piston-side chamber, a second on-off valve disposed at an intermediate position of a second passage communicating between the piston-side chamber and the tank, and a pump for supplying fluid to the rod-side chamber. A warm-up operation of the actuator is performed by opening the first and second on-off valves and driving the pump after the vibration control device is started and before a transition is made to a normal control mode for suppressing the vibration of the vehicle body.
First claim
Opening claim text (preview).
The invention claimed is: 1. A vibration control device for railroad vehicles for suppressing the vibration of a vehicle body of a railroad vehicle, comprising an actuator including: a cylinder coupled to one of a truck and the vehicle body of the railroad vehicle, a piston slidably inserted in the cylinder, a rod inserted in the cylinder and coupled to the piston and the other of the truck and the vehicle body, a rod-side chamber and a piston-side chamber partitioned in the cylin…
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Operations & Transport · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8997950B2 cover?
- A vibration control device for railroad vehicle includes an actuator with a cylinder coupled to a truck of a railroad vehicle, a piston, a rod coupled to the piston and a vehicle body, a rod-side chamber and a piston-side chamber in the cylinder, a tank, a first on-off valve disposed at an intermediate position of a first passage communicating between the rod-side chamber and the piston-side ch…
- Who is the assignee on this patent?
- Ogawa Takayuki, Aoki Jun, Uchida Masaru, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B61F5/24. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 07 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).