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US 11,143,065 B2Granted
Electro-mechanical variable valve mechanism, control unit for variable valve mechanism, electro-mechanical variable valve system and control method thereof
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsMyung-Sik Choi, You-Seok Back
Life of this patent
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Abstract
An electro-mechanical variable valve mechanism includes a variable valve mechanism body, a latching pin arranged in front of the variable valve mechanism body, and an inner body arranged inside the variable valve mechanism body. The latching pin reciprocates in a longitudinal direction of the variable valve mechanism body and the inner body to latch the variable valve mechanism body and the inner body.
Claims20
An electro-mechanical variable valve system comprising:
- an electro-mechanical variable valve mechanism comprising:
- a variable valve mechanism body;
- a latching pin arranged in front of the variable valve mechanism body;
- and
- an inner body arranged inside the variable valve mechanism body and having a latching hole configured to latch or unlatch the latching pin;
- and
- a control unit for the electro-mechanical variable valve mechanism, the control unit comprising:
- a control camshaft;
- a fan shaped control cam through which the control camshaft can pass, the control cam including a control cam hole comprising an arch shaped opening having a first arc and a second arc radially spaced from the first arc;
- a control camshaft connection pin arranged inside the control cam and connected to the control camshaft;
- and
- a control spring to be pressed to the control camshaft connection pin, the control camshaft connection pin and the control spring being arranged within the arch shaped opening of the control cam hole;
- wherein the control unit for the electro-mechanical variable valve mechanism causes the latching pin of the electro-mechanical variable valve mechanism to reciprocate in order to latch or unlatch the variable valve mechanism body and the inner body.
10 more elements
A control method of an electro-mechanical variable valve system, the method comprising:
- providing an electro-mechanical variable valve mechanism comprising:
- a variable valve mechanism body;
- a latching pin arranged in front of the variable valve mechanism body;
- and
- an inner body arranged inside the variable valve mechanism body and having a latching hole to latch or unlatch the latching pin;
- providing a control unit comprising:
- a control camshaft;
- a fan shaped control cam through which the control camshaft can pass, the control cam including a control cam hole comprising an arch shaped opening having a first arc and a second arc radially spaced from the first arc;
- a control camshaft connection pin arranged inside the control cam and connected to the control camshaft;
- and
- a control spring to be pressed to the control camshaft connection pin, the control camshaft connection pin and the control spring being arranged within the arch shaped opening of the control cam hole, wherein the control unit for the electro-mechanical variable valve mechanism causes the latching pin of the electro-mechanical variable valve mechanism to reciprocate in order to latch or unlatch the variable valve mechanism body and the inner body,
- pressing the latching pin of the electro-mechanical variable valve mechanism by the control cam of the control unit for the electro-mechanical variable valve mechanism;
- and
- releasing pressure to the latching pin of the electro-mechanical variable valve mechanism by the control cam of the control unit for the electro-mechanical variable valve mechanism.
11 more elements
An electro-mechanical variable valve system comprising:
- an electro-mechanical variable valve mechanism comprising:
- a variable valve mechanism body;
- a latching pin arranged in front of the variable valve mechanism body;
- and
- an inner body arranged inside the variable valve mechanism body and having a latching hole configured to latch or unlatch the latching pin;
- and
- a control unit for the electro-mechanical variable valve mechanism, the control unit comprising:
- a control camshaft;
- a fan shaped control cam through which the control camshaft can pass, the control cam including a control cam hole comprising an arch shaped opening having a first arc and a second arc radially spaced from the first arc;
- a control camshaft connection pin arranged inside the control cam and connected to the control camshaft;
- and
- a control spring to be pressed to the control camshaft connection pin, the control camshaft connection pin and the control spring being arranged within the arch shaped opening of the control cam hole;
- wherein the control unit for the electro-mechanical variable valve mechanism causes the latching pin of the electro-mechanical variable valve mechanism to reciprocate in order to latch or unlatch the variable valve mechanism body and the inner body;
- and
- wherein the latching pin reciprocates in a longitudinal direction of the variable valve mechanism body and the inner body to latch the variable valve mechanism body and the inner body.
12 more elements
Dependencies are inferred from the claim text.