TWI273162B - Apparatus for continuous ignition timing adjustment - Google Patents

Abstract

This invention relates to an apparatus for continuous ignition timing adjustment. It includes a variable control shaft with at least one No# 1 adjusting device and at least one adjusting device attached, a number-one rocker arm and a No# 2 rocker arm also attached on the variable control shaft, at least one sliding grove set on the No# 1 rocker arm for allowing the displacement of No# 1 adjusting device and at least one sliding grove set on the No# 2 rocker arm for allowing the displacement of No# 2 adjusting device, a cam acting with the No# 1 rocker arm and an engine valve acting with the No# 2 rocker arm. By moving the variable control shaft in the axial direction, the No# 2 adjusting device pushes the No# 2 rocker arm to rotate along the sliding grove on the variable control shaft and result a variable stroke of the engine valve. The design gains advantages on easy fabrication, low cost, better adjusting structure and stronger cam shaft.

Description

Ϊ273162 V. OBJECTS OF THE INVENTION (1) [Technical Field] The present invention relates to a valve timing adjustment device type timing adjustment device, which is straightforward and has a system of squatting槐 槐 趴 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 L L L L The variable valve timing structure is mainly shown in the convex = no slave J-suitable wide nose and has a bevel, so that the radial cross-cut of the cam = a change in continuity 'and the camshaft is set to Axial % ^ m The nose of the wheel is placed relative to the valve stem to provide a fixed body, and the H ^ ^ 6 a moving block is used to make the cam eccentric nose = face Pushing the transfer block indirectly drives the displacement of the valve stem = the control of the axial displacement, so that the cam nose has a different valve lift with respect to the valve. The partial use of the structure has the following shortcomings: Oblique [1] · clothing is not easy. The conventional structure generates different eccentricity by the door on the cam of the camshaft mechanism, forming different valve lifts, and the sentence '疋 increases from the center of a circle toward a fixed, horizontal direction==, but is used in The bevel is to be formed on the cam, and the basis of the ramp and the lift of the industrial valve creates a problem that is not easy to manufacture. 畠Qiu 2 I is costly. The conventional structure is provided with a suitable width of the inclined surface on the cam. The structure of the valve lift, and the formation of a suitable width on the cam to form a continuous bevel, the production process of the continuous bevel, the product must be quite sophisticated programmable control and device, so the manufacturing cost is high. 1273162 V. INSTRUCTIONS (2) [3]·Unsatisfactory adjustment structure. The face-lifting from the π-horizon direction pushes the design of the vertical, which is the lack of the conventional structure. [4]· Easy to wear components. It is still easy to set the vertical movement of the face from the horizontal direction and the high-speed push of the cam. The fixed body slows down the increase of the number of components and the assembly time from the horizontal side. Therefore, there is a need for the main object of the present invention. The entire device is simple to manufacture. A secondary object of the present invention is to provide a whole apparatus which has the advantage of low cost. Another object of the present invention is to provide a whole apparatus which has a preferred adjustment. Another object of the present invention is to provide a whole apparatus which enables a cam. The present invention provides a stepless first working unit and a second working first working unit, at least a wheel; each cam is axially fixed to the structure to urge the structure in a direction Designing the valve, that is, causing the component to push, is the different oblique valve of the other cam nose, so the horizontal increase of several times the driving force of the cam nose is different, so that the wear of the valve must also increase. Wear or deformation, a new structure for the conventional structure to solve the above disadvantages is to provide a stepless valve timing adjustment to provide a stepless valve timing tuning to provide a stepless valve timing Configuration. A stepless valve timing adjustment is provided. a valve timing adjusting device comprising: a unit, wherein: a cam shaft and at least one convex cam shaft are provided, the cam being for the first

1273162 V. INSTRUCTIONS (3) The working unit and the second rocker arm of the first statement and a (a) the variable control working unit push each other; the working unit is provided with at least a 'there is a variable control axis;: $ The control shaft has an -axis center and an outer diameter surface, and the first key can be shifted to and axially displaced along the axis, at least one of which is: the f-piece and the second adjustment element , the predetermined distance is set on the outer diameter surface of the shaft of the i-service; and the first rocker arm of the xz) is at least provided with a first abutting portion, a first variable control shaft, and a first pivot. a joint portion and the first sliding groove, wherein the top abutting portion is for the first rocker arm to push; , ··' w V ... Η and the corresponding cam mutual. The music is a pivotal portion for the first shaking The arm is pivotally connected to the upper portion; the sliding groove is formed on the control shaft portion, and the first adjusting member is formed on the first pivoting member, and the second rocking arm is provided with at least a second topping a second pivoting portion and an adjusting groove, wherein the second abutting portion is for pushing the second rocker arm and the corresponding one of the valve bodies The second pivoting portion is configured to pivotally connect the second rocker arm to the variable control shaft JEL, and the adjusting groove is formed on the second pivoting portion and is subjected to the second Adjusting the linkage of the jaws, and driving the second rocker arm to rotate on the variable control shaft to adjust the valve lift of the valve.

1273162 V. DESCRIPTION OF THE INVENTION (4) The above objects and advantages of the present invention are not difficult to understand from the following detailed description and the accompanying drawings. The following examples and detailed descriptions are given in conjunction with the drawings. When the engine is running, the amount of air borrowed in the cylinder at each cycle affects the engine power. The near-timing system has been applied to the engine. These door switch angles, valve opening periods, and valve lifts are efficient. Conventional valve trains cannot be changed. This is usually designed for medium speed and load operation, and speed and idle conditions cannot be optimally adjusted. The cycle has a relatively small amount of time, and the amount of gas per cycle is relatively increased. Therefore, it is better to introduce the inlet valve, increase the opening period and increase the valve lift. ^ At this point, due to the higher intake pressure, there are shorter ones that allow for longer valve overlap periods. In contrast, when the speed is too long, a long valve overlap will result in a large number of intake manifolds, so that the originally required rich mixture is > long opening period and lift, which will cause a large amount of incoming airflow to enter. Air manifolds result in reduced intake efficiency. And, the low speed valve opening mode can be simply represented by the first figure representing the crank angle 'the γ axis represents the valve lift, and the L line, Η represents the curve of the high speed mode. The present invention is directed to changing the valve lift, and the selected embodiment is designed. The present invention is required by the valve opening year to be able to rotate the south at a high speed by the engine. The pre-combustion valve opening time is diluted at the low speed burned gas. A new ideal for the cylinder, in which the low-speed die-closed valve changes the steam-changing process, because of the speed, low-day temple, oil and air opening angle, so there is also a high-speed, 怠 reflow to the same time. X-axis type song "stepless valve

1273162 DESCRIPTION OF THE INVENTION (5) Positive, adjusting device, as shown in the second and third figures, includes a first working unit 10 and a second working unit 20, wherein: the first working unit 10 is at least A camshaft 丨丨 and at least one cam 12 are disposed; each cam 12 is axially fixed to the camshaft η, and each cam 12 has a cam surface 121 by which the first working unit 1 The surface 121 and the second working unit 2 are mutually pushed; the second working unit 2 is provided with at least one control shaft 21, a first rocker arm 22 and a second rocker arm 23, wherein: (a) The variable control shaft 21 has an axis X and an outer diameter surface 2 11 '. The variable control shaft 2 1 can be rotated (in particular, rotated at a small angle), and can be axially along the axis X Displacement, at least one first adjustment element 2 1 2 is spaced apart from the second adjustment element 2 1 3 by a predetermined distance on the outer diameter surface 2 11 of the variable control shaft 21, and the first and second adjustment elements 2 1 2 and 2 1 3 are divided into a predetermined form (for example, a line parallel to the X axis, a specific oblique line or a curve, etc.) The first rocker arm 2 2 is provided with at least a first abutting portion 2 2 1 , a first pivoting portion 222 and a sliding groove 223, wherein: The first abutting portion 2 2 1 is for mutually pushing the first rocker arm 2 2 and the cam surface 121 of the corresponding cam 12; the first pivoting portion 2 2 2 is in this embodiment a hole through which the variable control shaft 21 passes; r the sliding groove 223 is formed on the first pivoting portion 2 2 2 substantially corresponding to the first adjusting member 212; and (c) the second rocker arm 2 3, at least one second abutting portion 2 3 1 ,

1273162 V. Fengming Description (6) A first pivoting portion 232 and an adjusting groove 233, wherein: the second abutting portion 231 is for the rod of the second rocker arm 23 and the corresponding one of the valve 3 1 The second pivoting portion 2 3 2 is, in this embodiment, a hole through which the variable control shaft 21 passes; the adjusting groove 233 is substantially corresponding to the second adjusting component 21 3 is formed on the second pivoting portion 232. This is the stepless valve timing adjusting device of the present invention. As shown in the third figure, the cam shaft 11 is driven to rotate, and the cam shaft 11 drives the cam 12 to rotate. The cam surface 121 of the cam 12 and the first abutting portion 2 2 1 of the first rocker arm 22 are mutually topped. Pushing, the first rocker arm 2 2 is repeatedly swinging, and the first rocker arm 221 is coupled with the sliding groove 223 of the first pivoting portion 222 to: the first adjusting component 2 1 on the control shaft 2 1 2, the variable control shaft 2 1 is rotated in turn, and the second adjusting component 213 of the variable control shaft 21 interlocks the adjustment groove 233 of the second rocker arm 23, and the second rocker arm 23 follows the variable control. The reverse rotation of the shaft 21 is followed by the reverse rotation; and the second abutting portion 23 ι pushes up and down the shaft 3 丨 1 of the valve 3 1; the valve surface 3 丨 2 of the valve 3 控制 controls the engine The inlet and exhaust of the steam door (whether it is the steam inlet or the exhaust valve). After the second and fourth figures are signed, the variable control shaft 2 1 is controlled such that the first adjustment element U2 is located at the first point a 'A on the sliding groove 223 of the first rocker arm 22, the first The second adjusting component 213 is located at the second adjusting point B of the adjusting groove 233 of the second rocker arm 23, and the second abutting portion 231 of the second rocker arm 23 is at a first position. 1, and approximately perpendicular to the variable control shaft 21

Page 10 1273162 V. Description of invention (7) Does the door produce the third? ί Θ 1. Therefore, a small gap will be generated between the second abutting portion 231 and the rod 31 1 (as in the sixth figure, the first working point is started), and the second unit 20 is shaken. The arm 2:,:::shaft 11' is driven to drive the first body 31 i, and the Λ / 2 abutting portion 231 pushes up and down the valve 31 of the valve 31 ^: ^ Γ θ1 ": 5 ^ # ^ ^ ^ ^231 slave short free course S2 (see the fifth, therefore the valve 31 will be the same as the fifth, the f will contact the 6 mysterious cup 31 1 'lifn pa,, Pe brother's five maps are not The high valve lift (valve wide (1) open π door') has a longer free-running crane, and the opening of the front door of the g-gate is +, ^ ^ ^ ^ angle and the opening period of the 杧-addition door. In order to increase the resistance of the ancient thorns, the sound of the singer 'J' is flying, and the mixed steam enters the cylinder in large quantities, so that the engine of the same speed produces a powerful power. 1 The seventh and the first figure, driving the variable control shaft 21 toward ' , ^, σ axial displacement, the first adjusting element 2 1 2 is moved from the first point position 上 on the sliding groove 223 of the first rocker arm 22 to a second point c, because the first shaking #22 The sliding groove 223 is straight, so the first The first abutting portion 2 2 1 of the arm 22 is still in the original position. Since the adjusting groove 233 of the second rocker arm 23 is oblique, the variable control shaft 21 is axially displaced in the direction of the axis X, And moving the second adjusting component 213 from the first adjusting point β on the adjusting groove 233 to a second adjusting point. The second adjusting component 213 forces the adjusting groove 233 to surround the variable control axis. 21 rotation, that is, the second rocker arm 23 is rotated by the second pivoting portion 232 on the variable control shaft 21 from the first angle 0 i to a second angle 02 (as shown in the sixth figure) The second abutting portion 231 will also be from the first position

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1273162 V. Invention Description (8) "" ---- P1, moved up to a second position p2, so that the second abutting portion 231 and the rod 3 11 - a larger gap (such as the sixth The imaginary line of the figure is shown). The camshaft 11 of the first working unit 10 is activated to indirectly drive the first rocker arm 23 of the first unit, and the second rocker arm 231 j of the second angle < 92 has its second position Ρ2 The two abutting portions 231 push up and down the f1 of the valve 31; because of the large gap, the second abutting portion 231 will move, and after a long free stroke, the rod body 3丨丨 is contacted, so the steam The door valve 3 will open the valve with a lower valve lift (val ve iift) as shown in the fifth figure, that is, have a shorter free stroke S2, delay the opening angle of the valve and reduce the opening of the valve. period. And reduce the overlap period of the valve to reduce the gas, return to the intake manifold, and improve the combustion efficiency. At the same time, the intake area is reduced, and the excessive opening period and lift are prevented, resulting in a large amount of new, mixed airflow that has entered the cylinder, returning to the intake manifold, resulting in a decrease in intake efficiency. More specifically, the present invention can automatically adjust the variable control shaft 21 for axial displacement with its engine speed as its engine speed (the sensing device and the interlock switch are disclosed in the prior art, and will not be described). The second adjusting element 213 on the 211 forces the second yoke, causing γ ΛΛ . ^ ^ , and the adjustment groove 233 of the rock is 23 (not limited to the rotation = the angle and the position reach the angle of changing the second rocker arm 23 (without limiting the angle), the valve lift of the valve valve 31 is also adjusted. The door t changes the swing angle of the second rocker arm 23 with respect to the variable control shaft 21, and also changes the first m ^ #弟摇' 2 2 relative to the cam 1 2's push angle, Ren's brother a rocker arm 2 2 still large u曰. .B x the human body pushes the cam 12 in the same position, that is, not The camshaft 1! is seated by your a μ ^ shell. The thrust is generated to prevent the camshaft 11 from deforming.

1273162 V. Description of the Invention (9) The sliding groove and the adjusting grooves 223 and 233 are formed in the same depth state on the first rocker arm 22 and the second rocker arm 23, respectively, and the first weir second adjusting component 21 2 and 2 1 3 are also distributed on the variable control shaft 21 in an equal height state, and the relevant structure of the main jade angle is easy to manufacture, and no precise technology is required. Although the adjustment groove 233 is oblique, but is a continuous groove of equal depth, there is no discontinuity in the middle, and regardless of the axial displacement of the variable control shaft 21, the second adjustment element 213 can push the second rocker arm 23 to rotate relative to each other. The predetermined angle allows the engine to fully exert its driving force at different speeds. As shown in the second embodiment, in the preferred embodiment of the present invention, the first and second adjusting members 2 1 2 and 2 1 3 are provided with a plurality of convex members surrounding the outer diameter of the variable control shaft 21 Face 21 1 on. Of course, the first and second adjusting elements 2 1 2 and 2 1 3 are respectively modified on the first and second rocker arms 22 and 23, and the sliding groove and the adjusting grooves 223 and 233 are respectively modified. The variable control shaft 2 1 is an equivalent replacement of the present invention and is also within the scope of the protection of the present invention. Of course, the sliding groove and the adjusting grooves 223 and 233 may be one straight groove, one oblique groove (or curved groove), or two curved grooves (or curved grooves). And the efficacy is as follows: [1] · Simple manufacturing. According to the present invention, the structure for generating the stepless valve adjustment is such that the first and second adjusting elements of the same height are adjusted corresponding to the equal-depth sliding groove and the adjusting groove, and the contour is set on the variable control shaft. The first and second adjustment elements 'or the equal depth of the sliding groove and the adjustment groove on the first and second rocker arms are relatively simple techniques, and therefore, the manufacturing is simple.

Page 13 1273162 Friends, invention instructions (10) [2] · Low cost. The first and second adjustment grooves of the single, and the better adjustment, form the technology of the same depth, [3] · Compared with the first and the first, the second rocker body is pushed. [4], convex ~, second adjustment of the camshaft to the camshaft or 'and the cam wheel ^ above only the scope of the example. Shake the second second pair of valve axles. The whole component and the valve are not easy to change. The error is caused by any simple invention in one component, and the groove is adjusted to be low. The whole structure. The arm is swiveled with an equal rocker arm, and the radial angle of the abutting portion of the valve is not easily deformed. The angle of engagement of the valve with each other's valve produces a radial shape. The preferred embodiment is a single modification and straightening rod (variable control vehicle). In the first and second pivoting manufacturing industries, both of the variable control shafts are adjusted to the entire first and second adjustment valve valves. Adjusting the top push to adjust the 'adjustability variable control to change the life of the first and second rocking push position gates to generate the pressure in the same position. The pressure, the pressure, and the steam, explain the present invention in detail, without departing from the present invention. The valve valve in the process of easily adjusting the phase of the outer diameter of the outer surface can be easily added to the simple part. The first arm on the shaft is unchanged, and it does not last longer. For the spirit of the reality

It is true that 1 = soil = fine description, and those skilled in the art can understand the patent application of the present invention. The purpose of κ has been in accordance with the provisions of the Patent Law, and the invention has been proposed. 1273162 The following is a brief description of the drawings. [The first diagram is an ideal high-speed second diagram. The third diagram of the present invention is the fourth embodiment of the present invention. The figure is the third part of the figure - the fifth picture is the steam-sixth figure of the present invention, the seventh picture of the present invention is the eighth picture of the present invention, the seventh figure is the part of the seventh figure > [main component number description 1 〇First working unit 12 cam 2 0 second working unit 2 11 outer diameter surface 213 second adjusting element 2 2 Ϊ first abutting portion 223 sliding groove 2 3 1 second abutting portion I 233 adjusting groove 3 11 rod body L low speed mode curve A first point C second point P1 first position and low speed valve opening mode schematic diagram schematic diagram of a schematic diagram of a sub-structure schematic diagram of the door lift variation Schematic diagram of a schematic two-part structure] 11 camshaft 121 cam surface 2 1 variable control shaft 212 first adjusting element 22 first rocker arm 222 first pivoting portion 23 second rocker arm 232 second pivoting portion 3 1 valve valve 3 1 2 valve face Η high speed mode curve Β first adjustment The second bit D Ρ2 second position adjustment points

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Claims (1)

1273162 6. Patent application scope 1 · A stepless valve timing adjusting device, comprising a first working unit and a second working unit, wherein: the first working unit is provided with at least one camshaft and at least one a cam; each cam is axially fixed to the cam shaft, the cam is mutually driven by the first working unit and the second working unit; the second working unit is provided with at least one variable control shaft, a first a rocker arm and a second rocker arm, wherein: (a) the variable control shaft has an axial center and an outer diameter surface, the variable control shaft is rotatable in reverse and axially displaceable along the axial center And the first adjusting component and the second adjusting component are disposed at a predetermined distance apart from an outer diameter surface of the variable control shaft; (b) the first rocker arm is provided with at least a first top a first pivoting portion, a first pivoting portion, and a sliding groove, wherein: the first abutting portion is configured to mutually push the first rocker arm and the corresponding cam; the first pivoting portion is for the first The rocker arm is pivotally connected to the variable control shaft; the sliding groove is tied The first adjusting component is formed on the first pivoting portion; (c) the second rocking arm is provided with at least a second abutting portion, a second pivoting portion and an adjusting groove, wherein: The second abutting portion is configured to mutually push the second rocker arm and the corresponding one of the valve bodies; the second pivoting portion is configured to pivotally connect the second rocker arm to the variable control Page 17 1273162 6 2 Applying for the patent range, the adjustment and the cover adjustment are formed on the second towing portion and are rotated by the first shaft to drive the second The rocker arm in the variable control • as applied for a patent ~ adjusts the valve lift of the valve. Positioning, wherein: the ft adjustment element of the stepless valve control unit of the enthalpy 1 is provided with a plurality of convex members surrounding the corresponding X-plane Each of the first and second adjusting elements can be moved on the first groove and the adjusting groove; and on the arm, the sliding two whole elements can also be respectively disposed on the first and second shaking. , and the adjustment groove is respectively set on the variable control shaft, wherein: the stepless valve timing adjustment device described in Item 1 of the J dry circumference 4: ΐ ϊ up! The deep state is formed at the first, and the cloth is at the variable control=. In the first five weeks, the entire 70 pieces are also in the same state as the first paragraph of the patent scope, and the one-piece valve timing adjustment described in the first item is the first unit and the first cover. Rotating, the sliding check is performed, the first rocker arm is reversely rotated, and the first 7° piece is linked to the variable control groove, and the first _ ^ Ρ — - the piece moves the second rocker arm Adjusting and then pushing the arm of the rocker with the rocker and pushing the 7f up and down the control shaft and turning the swing; the second top pushes the top of the rod; the valve face of the valve is controlled on page 18, 1273162. Configuring a valve inlet and exhaust on an engine; controlling displacement of the variable control shaft in the axial direction, the following action is generated: the first adjustment element is at least at a first point on the sliding groove of the first rocker arm Moving between the bit and the second point; " the second adjusting component moves between the first adjustment point and the second adjustment point on the adjustment groove of the second rocker arm; the second rocker arm is in the variable Controlling at least a first angle and a second angle on a vertical axis of the shaft; ^ the first Abutting at least a portion moves between a first position and a second position. 5. The stepless valve timing adjusting device according to claim 4, wherein: when the second abutting portion is in the first position, the valve valve generally opens the steam with a higher valve lift. The door; when the second abutting portion is in the second position, the valve valve generally opens the valve with a lower valve lift. Page 19