TH85448A

TH85448A - Adjustable valve actuators as well as ready engine and vehicle kits that

Info

Publication number: TH85448A
Application number: TH601005876A
Authority: TH
Inventors: ยามาโมโตะ นายมิโนรุ; นากาอิ นายโยทิทาคะ
Original assignee: นางสาวปัณณพัฒน์ เหลืองธาตุทอง; นางสาวยิ่งลักษณ์ ไกรฤกษ์; นางสาวอภิญญา บัณฑิตวุฒิสกุล; ยามาฮา อันสึโดกิ คาบูชิกิ ไกซา
Filing date: 2006-11-27
Publication date: 2007-07-05

Abstract

DC60 ชุดอุปกรณ์ขับเคลื่อนวาล์วปรับได้ ซึ่งในเวลาหมุนความเร็วต่ำ แรงเหวี่ยงหนีศูนย์กลางที่กระทำ ต่อเวตจะน้อยจึงทำให้การเคลื่อนไหวแบบหมุนของเวตถูกจำกัด เมื่อเป็นเช่นนั้น ส่วนลูกเบี้ยวเคลื่อน ตัวอิสระก็จะหมุนเปล่าโดยมีแกนยึดตรึงลูกเบี้ยวเป็นศูนย์กลาง โดยที่สลักล็อคไม่ได้ถูกสวมเข้าในรู สวมเข้าสลักล็อคของส่วนลูกเบี้ยวเคลื่อนตัวอิสระ ในเวลาหมุนความเร็วสูง แรงเหวี่ยงหนีศูนย์กลางที่ กระทำต่อเวตจะมากขึ้น เวตจึงหมุนโดยมีแกนหมุนเป็นศูนย์กลาง เมื่อเป็นเช่นนั้น ปลายหน้าของสลัก ล็อคจะถูกสวมเข้าในส่วนสวมเข้าสลักล็อคของส่วนลูกเบี้ยวเคลื่อนตัวอิสระ ดังนั้น ในเวลาหมุน ความเร็วสูง ส่วนลูกเบี้ยวเคลื่อนตัวอิสระจะถูกยึดตรึงเมื่อเทียบกับทิศทางหมุนของชุดอุปกรณ์ขับ เคลื่อนวาล์วปรับได้โดยสลักล็อค ชุดอุปกรณ์ขับเคลื่อนวาล์วปรับได้ ซึ่งในเวลาหมุนความเร็วต่ำ แรงเหวี่ยงหนีศูนย์กลางที่กระทำ ต่อเวตจะน้อยจึงทำให้การเคลื่อนไหวแบบหมุนของเวตถูกจำกัด เมื่อเป็นเช่นนั้น ส่วนลูกเบี้ยวเคลื่อน ตัวอิสระก็จะหมุนเปล่าโดยมีแกนยึดตรึงลูกเบี้ยวเป็นศูนย์กลาง โดยที่สลักล็อคไม่ได้ถูกสวมเข้าในรู สวมเข้าสลักล็อคของส่วนลูกเบี้ยวเคลื่อนตัวอิสระ ในเวลาหมุนความเร็วสูง แรงเหวี่ยงหนีศูนย์กลางที่ กระทำต่อเวตจะมากขึ้น เวตจึงหมุนโดยมีแกนหมุนเป็นศูนย์กลาง เมื่อเป็นเช่นนั้น ปลายหน้าของสลัก ล็อคจะถูกสวมเข้าในส่วนสวมเข้าสลักล็อคของส่วนลูกเบี้ยวเคลื่อนตัวอิสระ ดังนั้น ในเวลาหมุน ความเร็วสูง ส่วนลูกเบี้ยวเคลื่อนตัวอิสระจะถูกยึดตรึงเมื่อเทียบกับทิศทางหมุนของชุดอุปกรณ์ขับ เคลื่อนวาล์วปรับได้โดยสลักล็อค DC60 Adjustable valve actuator unit Which at low speed rotation Centrifugal force acting The interval is low, thus limiting the spinning movement of the sweat. When so The cam part The independent will rotate bare with the cam-centered fixing axis. Without the locking pin being inserted into the hole. Put into the locking latch of the free-moving cam part. In high speed rotation Centrifugal force Act more wate. Wate therefore rotates with the center axis of rotation. When so Front end of the latch The lock is inserted into the locking pin of the free-moving cam section, therefore, at high speed rotation, the free-movement cam is fixed relative to the direction of rotation of the drive unit. Move the adjustable valve by locking latch. Adjustable valve actuator kit Which at low speed rotation Centrifugal force acting The interval is low, thus limiting the spinning movement of the sweat. When so The cam part The independent will rotate bare with the cam-centered fixing axis. Without the locking pin being inserted into the hole. Put into the locking latch of the free-moving cam part. In high speed rotation Centrifugal force Act more wate. Wate therefore rotates with the center axis of rotation. When so Front end of the latch The lock is inserted into the locking pin of the free-moving cam section, therefore, at high speed rotation, the free-movement cam is fixed relative to the direction of rotation of the drive unit. Move the adjustable valve by locking latch.

Claims

1. The adjustable valve actuator assembly is used to drive the engine valves. It consists of a rotating shaft designed to rotate relative to the engine's rotation, and camshaft 1, designed to rotate with this shaft and open/close the valves. Camshaft 2 is also designed to rotate relative to this shaft and open/close the valves. A connecting piece is designed to move between states 1 (allowing camshaft 2 to rotate relative to this shaft) and 2 (allowing camshaft 2 to move relative to this shaft), and a power element generates the force to move the connecting piece to state 1. A drive element then moves the connecting piece to state 2, counteracting the power element's force via centrifugal force accompanying the shaft's rotation, due to centrifugal force. In the case of the connecting piece being in state 1, camshaft 1 opens and closes the valves. And in the event that the connecting part is in the second condition mentioned, the second cam part will act to open or close the valve.

2. The adjustable valve actuation unit under claim 1 shall have a driven element designed to rotate from position 1 to position 2 by centrifugal force accompanied by the rotation of the axis of rotation. The linkage shall be designed to move in one direction along the axis of rotation together with the rotation from position 1 to position 2 of the driven element. The power element shall provide force to the driven element to move it toward position 1. The linkage shall become state 1 when the driven element is in position 1 and state 2 when the driven element is in position 2.

3. The adjustable valve actuator under claim 1, where the said linkage has an attached part, the said cam 2 has an attached part which is held by the said linkage of the said linkage. The said linkage is released from the attached part when the said linkage is in condition 1, and the said linkage holds the attached part when the said linkage is in condition 2.

4. The adjustable valve actuation unit under claim 3, where the aforementioned linkage covers the rod-shaped element, where the linkage is the end of the rod-shaped element, and the linked portion of the second cam element is the hole into which the end of the rod-shaped element can be fitted.

5. The adjustable valve actuation unit under claim 4 shall have a linkage consisting of multiple rod-shaped pieces. The linkage of the second camshaft shall consist of multiple holes at the ends of these rod-shaped pieces, each capable of fitting into alignment. These rod-shaped pieces shall be positioned asymmetrically to each other relative to the center of the pivot axis.

6. An adjustable valve actuation unit as per claim 1, equipped with a moving obstruction that hinders the movement of the said connecting part when the connecting part is in at least one of the following conditions: Condition 1 or Condition 2.

7. The adjustable valve actuation device pursuant to claim 6 shall have at least one groove on the connecting part, and the obstructing part shall have a fitting that can be inserted into such groove when the connecting part is in at least one of the aforementioned conditions 1 or 2.

8. The adjustable valve actuation unit under claim 7 at the said groove and the said fitting shall be constructed in such a way that the said fitting of the said obstructing part can retract from at least one of the said groove 1 of the said connecting part in the event that the connecting part moves from state 1 to state 2, or in the event that the connecting part moves from state 2 to state 1, whichever is less.

9. An adjustable valve actuation unit according to claim 1, which is equipped with transmission part 1 causing the valve to move up and down by oscillation relative to the rotation of such cam part 1, and transmission part 2 causing such transmission part 1 to oscillate relative to the rotation of such cam part 2.

10. The adjustable valve actuation unit under claim 1, where cam element 1 acts to open the valve by a lift of 1 under condition 1, and cam element 2 acts to open the valve by a lift of 2 greater than the lift of 1 under condition 2.

11. The adjustable valve actuation unit under claim 1, where cam element 1 acts to open the valve by an action angle 1 under condition 1, where cam element 2 acts to open the valve by a greater action angle 2 than action angle 1 under condition 2.

12. A valve actuation device adjustable according to claim 1 where such valve is an intake valve.

13. A complete engine assembly containing a valved engine and an adjustable valve actuator for driving the valves of the said engine. This adjustable valve actuator shall be equipped with a rotating shaft designed to rotate relative to the rotation of the said engine, and camshaft 1 designed to rotate together with the rotating shaft and act to open and close the valves, and camshaft 2 designed to rotate relative to the rotating shaft and act to open and close the valves, and a connecting piece designed to move between state 1, which allows camshaft 2 to rotate relative to the rotating shaft, and state 2, which connects camshaft 2 to the rotating shaft, and a power element that generates the force to move the connecting piece to state 1, and a driving element that acts in a way that moves the connecting piece to state 2, opposing the power element from the power element by the centrifugal force accompanying the rotation of the rotating shaft. In the case where the element... In the aforementioned condition 1, camshaft 1 acts to open the valve, and in the case where the connecting part is in the condition 2, camshaft 2 acts to open or close the valve.

14. A vehicle equipped with an engine and drive wheels and a transmission mechanism that transmits power generated by the said engine to the said drive wheels, whereby the engine is equipped with valves and an adjustable valve actuator for driving the said valves of the said engine, whereby the adjustable valve actuator is equipped with a shaft designed to rotate relative to the rotation of the said engine, and camshaft 1 designed to rotate together with the shaft and act to open and close the said valves, and camshaft 2 designed to rotate relative to the shaft and act to open and close the said valves, and a linkage designed to move between state 1, which allows camshaft 2 to rotate relative to the shaft, and state 2, which links camshaft 2 to the shaft, and a power element that generates the force to move the linkage to state 1, and a drive element that acts in a way that moves the linkage to state 2 against the power element from the power element. Due to the centrifugal force accompanying the rotation of the aforementioned axis, in the case where the connecting part is in the first condition, cam piece 1 will act to open the valve, and in the case where the connecting part is in the second condition, cam piece 2 will act to open or close the valve.