Valve system and method
US-9212751-B2 · Dec 15, 2015 · US
Coolant control valve apparatus
US2015122359A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015122359-A1 |
| Application number | US-201314400842-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 14, 2013 |
| Priority date | May 15, 2012 |
| Publication date | May 7, 2015 |
| Grant date | — |
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Abstract
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An engine cooling system compromises a main channel connecting an engine and a radiator, and a coolant control valve apparatus controlling a flow rate of coolant water in the main channel having a main rotary valve. The main valve includes a rotor and a casing that has an inner peripheral surface facing an outer peripheral surface of this rotor, and a gap is provided between the outer peripheral surface of the rotor and the inner peripheral surface of the casing. The inner peripheral surface of the casing has a main opening part that is connected to the main channel, and this main opening part is provided with a sealing member that protrudes to the outer peripheral surface of the rotor. This sealing member composes a channel that connects an opening part of the rotor and an opening part of the casing.
First claim
Opening claim text (preview).
1 . A coolant control valve apparatus that controls a flow rate of coolant water in a channel for circulating the coolant water between an engine and a radiator, the coolant control valve apparatus comprising a rotary valve that controls the flow rate of the coolant water in the channel, wherein the rotary valve includes: a substantially cylindrical rotor whose outer peripheral surface has a rotor-side opening part; and a casing which has an inner peripheral surface facing the outer peripheral surface of the rotor so as to store the rotor, and is provided with a casing-side opening part that allows the coolant water to flow into the channel when the inner peripheral surface and the rotor-side opening part are arranged to be overlapped with each other, a gap is formed between the outer peripheral surface of the rotor and the inner peripheral surface of the casing, throughout all of the outer peripheral surface of the rotor, the casing-side opening part includes a sealing member which protrudes from the casing-side opening part to the rotor side so as to be in touch with the outer peripheral surface of the rotor, and the sealing member composes a channel that connects the rotor-side opening part and the casing-side opening part. 2 . The coolant control valve apparatus according to claim 1 , wherein the sealing member is supported elastically by an elastic unit so that the sealing member can be moved in a direction away from the outer peripheral surface of the rotor. 3 . The coolant control valve apparatus according to claim 1 , wherein the rotor has a rotation axis whose both end parts protrude respectively from end surfaces of the rotor so as to support the rotor rotatably, and the casing includes a tubular bearing part in which the rotation axis of the rotor is inserted and which supports the rotation axis of the rotor rotatably, annular seals are provided between the rotation axis and the bearing part and have X-shaped cross-sections, and in addition to the seals having the X-shaped cross-sections, a seal is further provided between the one end part which is driven by the driving unit among the end parts of the rotation axis and the bearing part. 4 . The coolant control valve apparatus according to claim 2 , wherein the rotor has a rotation axis whose both end parts protrude respectively from end surfaces of the rotor so as to support the rotor rotatably, and the casing includes a tubular bearing part in which the rotation axis of the rotor is inserted and which supports the rotation axis of the rotor rotatably, annular seals are provided between the rotation axis and the bearing part and have X-shaped cross-sections, and in addition to the seals having the X-shaped cross-sections, a seal is further provided between the one end part which is driven by the driving unit among the end parts of the rotation axis and the bearing part.
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Frequently asked questions
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- What does patent US2015122359A1 cover?
- An engine cooling system compromises a main channel connecting an engine and a radiator, and a coolant control valve apparatus controlling a flow rate of coolant water in the main channel having a main rotary valve. The main valve includes a rotor and a casing that has an inner peripheral surface facing an outer peripheral surface of this rotor, and a gap is provided between the outer periphera…
- Who is the assignee on this patent?
- Mikuni Kogyo Kk
- What technology area does this patent fall under?
- Primary CPC classification F01P7/14. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu May 07 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).