TW534948B - Intake controller - Google Patents

Abstract

The object of the present invention is to provide an intake controller provided with an opening degree sensor and capable of reducing the number of parts, assembly man-hour, and manufacturing cost and improving the maintenance property. An engaging part 3A and a fitting groove 3B are formed at one end of a throttle shaft 3. A tip part 5A of a shaft bearing boss 5 is formed with a flat shape, and a guide cylinder part 5E along the axial direction of the throttle shaft 3 is formed at its outer periphery. The fitting groove 3B including the engaging part 3A at one end of the throttle shaft 3 inserted and arranged in a shaft guide hole 6 protrudes from the tip part 5A of the shaft bearing boss 5, and a flat washer is arranged between an E ring E fitted into the fitting groove 3B and the tip part 5A of the shaft bearing boss 5. The engaging part 3A of the throttle shaft 3 is engaged with and arranged in an engaging hole 8A of a rotor 8 of the opening degree sensor S, a seal cylinder part 7A is guided by the guide cylinder part 5E, and the opening degree sensor S is attached to a throttle body 1.

Description

534948 V. Description of the invention (1) [Application fields in the industry] The present invention relates to an intake control device for controlling air or a mixture gas supplied to an internal combustion engine. In particular, the suction control device includes an opening degree sensor that detects the opening degree of a throttle valve that controls the opening and closing of the suction passage. [Background Technology] A conventional intake control device will be described with reference to FIG. 3. 1 is a throttle body, 2 is an intake passage, the intake passage 2 penetrates the inside of the throttle body 1, and a throttle main shaft 3 which crosses the intake passage 2 is provided with a throttle valve 4 that opens and closes the intake passage 2. . The throttle main shaft 3 is rotatably held in each of the main shaft guide holes 6. Each main shaft guide hole 6 passes through a main shaft bearing hub 5 of the throttle body 1. The main shaft guide hole 6 is formed opposite to the suction passage 2. In addition, a front end portion 5 A of the main shaft bearing hub 5 (the main shaft bearing hub shown above in FIG. 3) is formed to have a diameter larger than that of the main shaft guide hole 6 toward the suction passage 2 side (in FIG. 3). Bottom recess 5B provided for indentation. The bottom surface 5C of the bottomed recess 5B is perpendicular to the longitudinal axis line of the main shaft guide hole 6, and the main shaft guide hole 6 is opened. S is an opening degree sensor. While the rotor 8 with a sliding sheet in the casing 7 is supported by a freely rotatable shaft, a substrate (not shown) forming a resistor body pattern is fixedly arranged inside the casing 7 so that the rotor 8 The sliding piece slides on the resistor body pattern, and a special-shaped coupling hole 8A for connection is formed at the lower end of the rotor 8 and penetrates downward. Further, at the lower end of the case 7, a cylindrical sealed cylindrical portion 7A protruding downward is formed. In addition, at one end (the upper side in FIG. 3) of the above-mentioned throttling main shaft 3, an engagement is provided to be engaged with the engagement hole 8A of the rotor 8.

\\ 312 \ 2d-code \ 91-02 \ 90130542.ptd Page 4 W4948 V. Description of the invention (2) Γ 丄 The lower part is penetrated through a fitting groove 3B arranged in a loop. 3, the throttling (the other end is the bottom in Figure 3) while forming a special shape, a mounting portion 3D is formed in which the external thread 3C is engraved. The intake control device configured as described above is assembled as follows. First, when inserting the throttle spindle 3 of any part with a wild-type f &, insert one end of the throttle spindle 3 toward the inside, and the part 5B is arranged upward and away from the inside. And ^ this :! From the bottomed concave end, insert the flat diaphragm w into the throttle main two; the flat washer W at the negative end of the flow main shaft 3 of the flow main shaft 3 is misplaced when there is a Ma Xiao dog saddle 'configured between the ring E, at In FIG. 3, the throttling main shaft f has a square bottom in the downward direction; ^ 5B's bottom surface 5C touches the flattened Eyangzi E and is accepted and configured ==: skin ... contains within 5B. In addition, in this state, the bottom = recessed bearing of the wheel cover 5 of the rear end M of the wheel 5 is downwardly ^ the main shaft ^ the other end, after inserting the configuration from the main shaft, screw the nut 10 * on the mounting portion 3D The net drum 9 is arranged on the other side 3C of the throttle main shaft 3, so that the net drum 9 is screwed into the throttle main shaft 3 in the suction passage 2 and connected to the Lang valve 4 with screws 3A. Degree sensor two turn up. The outer periphery of the sealed cylindrical portion 7A of the sub-housing 7 is inserted from the main system's 5 hole 8A. In addition, it is arranged in the bottomed recess 5B. 7—The front end 5A of the hub 5 is inserted into the screw thread B and fixed to the throttle. The valve body is U-shaped and the 'opening degree sensor S is driven by and' the driver rotates the throttle spindle 3 through the husband + in the figure, then the throttle 4 = the net is rotated ~ and the opening and closing control should be controlled by the above rotation 4948. V. Description of the invention (3) ί = 2π ° Λ The above opening degree of the outer throttle valve 4 is transmitted to the rotation μ through the coupling degree of the throttle main shaft 3 to the L7 wheel. [Problems to be Solved by the Invention] Some suction control devices generate the following In the state of the other end of the two-throttle main shaft 3, the fitting groove provided at one end of the main shaft 3 of the throttling can not be inserted into Ε

Closing = "The bottom recess 5B hinders the E ring. Insert the two ends of the H t into the ☆ groove 3β. ^ 9. The ring E is inserted into the female 10 of the throttle spindle 3 through the nut 10. The screw il'olii is required. The main shaft 3 needs to be engraved with external threads 3G. F prepares the nut 10 and the nut 1◦ is screwed in. The number and number of parts are increased, and the manufacturing cost cannot be reduced. In addition, the spindle bearing hub: 5: :: 3 网: another 9 The distance of the face 9A is too large, then the drum 9 is fixed in advance in the state of the other part of the joint: main, 3, and the throttle main shaft 3 is upward, and the front end part 5A of the side of the receiving wheel 敎 5 is upward. Disengaged, the longitudinal length of 3 is large, so the intake control device is miniaturized.

The improvement of the maintainability of the main shaft 3 is affected by P / ;, L wide-rotation contact. In long-term use, when the cymbal w is placed in the bottomed recess when the cymbal w is placed in the bottomed recess, the suction control device of the present invention is The above-mentioned disadvantage is to provide an air intake control device with an opening degree sensor that can reduce the number of parts and the number of assembling work, and reduce the maintenance performance when the manufacturing cost is reduced.

II Page 6 \\ 312 \ 2d-code \ 91-02 \ 90130542.ptd 534948 V. Description of the invention (4) [Means for solving problems] The suction control device m 0 of the present invention is supported by a throttle valve. Μ μ, ☆ In order to achieve the above purpose, there is a corresponding shaft t detection installed on the section-main :: the rotor of the main shaft is rotated by the rotation of the main shaft. Suck

There is a cylinder # 饴 封 管 部 7Α which is characterized by the openness of the openness sensor S and has a circumferential direction of the child 8 and protrudes downward from the T end 8β of the rotor 8. In addition, in the throttle main shaft 3 having a cross section of the suction passage 2 (0_ 卽 ^ > 阙 main limb), a main shaft bearing hub 5 'is provided, and the main shaft bearing wheel is capable of supporting the above-mentioned throttle. The main shaft guide hole 6 of the main shaft is formed on the outer periphery of the front end portion ^ of the main shaft bearing hub to form a guide cylinder portion 5E, # in the axial direction, and one end of the main shaft 3 is throttled at the front end 幵 // A matching coupling portion 3A is formed in the coupling hole 8 a of the rotor 8 and a ring-shaped fitting groove is formed below it. The above-mentioned throttling spindle is inserted into the spindle ^ guide hole 6. At the same time, the E ring E is embedded and arranged in the fitting groove 3B of the throttle spindle 3 protruding from the front end portion 5A of the spindle bearing wheel 5 and the coupling portion 3A of the throttle = shaft 3 is arranged in cooperation with the rotor 8 At the same time, insert the sealed cylindrical portion 7A of the housing 7 into the divergent cylindrical portion 5F of the throttle body 1 at the same time. The net drum 9 is fixed on the end.

L action J According to the first feature of the intake control device of the present invention, the E-ring including the flat pin is disposed so as to be exposed upward from the front end portion of the spindle bearing hub by S'j. In addition, the maintainability between the flat washer and the front end can improve the assemblability of the road ring and the workability of the spindle bearing hub. °

I \\ 312 \ 2d-code \ 91-02 \ 90130542.ptd Page 7 534948 V. Description of the invention (5) In addition, according to the second feature of the present invention, a drum can be fixedly arranged on the throttle shaft, so Reduction in the number of parts and assembly work. [Exemplary Embodiment] An embodiment of the inhalation control device of the present invention will be described below with reference to Figs. 1 and 2. Fig. 1 is a longitudinal sectional view thereof, and Fig. 2 is a longitudinal sectional view taken along line A-A in Fig. 1. In addition, parts having the same structure as those in FIG. 3 are assigned the same component numbers. The front end portion 5A of the main shaft bearing hub 5 is formed in a flat shape, and a guide cylinder portion 51 is formed on the outer peripheral portion of the main shaft bearing hub 5 in the axial direction of the throttle main shaft 3. One of the ends of the throttle main shaft 3 is formed with an engaging portion 3 A, and a fitting groove 3 B 'is formed therethrough, and the drum 9 is fixed at the other end. In this embodiment, the drum 9 is riveted to the other end of the throttle spindle 3. The fixing method of the drum 9 is not limited to riveting, but welding may also be used. On the casing 7 of the opening degree sensor S, a cylindrical sealed cylindrical portion 7 A 〇 〇 is formed on the outer peripheral side of the rotor 8 and protrudes downward from the lower end 8B of the rotor 8.

^ The assembly will then be explained. Insert the throttle main shaft 3 f main shaft bearing hub 5 at the rear end portion 5 of the fixed drum 9]) into the main shaft guide hole 6 so that the coupling portion 3A and the fitting groove 3B at one end of the main shaft 3 of the joint f main shaft 3 are removed from the main shaft. Bearing hub 5: 刖 End 5 A protrudes. In this state, insert the flat blade W from the one end of the throttle spindle 3 into the throttle spindle 3, and then insert the E ring E into the fitting groove 3B. As a result, the flat washer W is clamped on the spindle bearing hub The front end portions 5A and 5 ± 2 of 5 are arranged in a fixed manner on the other end of the throttle spindle 3, and the rear end portion 5D of the axle bearing hub 5 is disposed. Next, the throttle valve 4 that opens and closes the suction passage 2 is fixed to the throttle main installed in the suction passage 2 with screws.

534948 V. Description of the invention (6) Axis 3 h. Iron connection, ”Throttle spindle 3 ′, 1 bar, 1 degree sensor 5 is installed on the throttling main body 1, and the sealing part ^ of the body 7 is inserted into the coupling hole ^ arranged on the rotor 8, and the shell tube part 5E " Upper ', the inner side of Jing 7A is inserted and arranged on the guide II of the main shaft bearing hub 5' In this state, the flange portion 7β extending laterally from the housing 7 is screwed into the throttle body by the bolt B] .

Department: ΐ :: i suction control device, can greatly increase the flat gasket W. That is, in a long-term use, when the flat gasket W is taken up and down to generate abrasion powder, the opening degree sensor 5 is removed from the front end portion 54 of the throttle body 1 and the shaft bearing hub 5 and the flat washer === for example, blown by air Wash with liquid two two. = 22 foreign body. In addition, since the main shaft bearing wheel valley 5 can realize the six I shape, compared with the existing bottomed recess 5B, it is supported from the main shaft! 1. / 、 Externally 'fix the fitting groove 3B at one end of the throttle spindle 3 =? W end 5A is protruded and arrange' so that the drum 9 can be inserted into the outer screw bit 3 (^ and helical screw τ n, therefore, not Need to be like the existing throttle spindle for 3 engravings. "No need to screw in the nut to make it through. It has zero effect. The number of deletions and assembly work can be reduced to achieve the effect of reducing the cost of the invention." The opening of the opening sensor is a coupling part at one end of the flow main shaft. The coupling part 2 is included, and the flat front end portion that becomes the spindle bearing hub is arranged to protrude. An m-shaped member is fitted to the fitting groove to improve workability. At the same time, the maintainability of the flat gasket portion between the two ends of the Tiba can be maintained. "Page 9 \\ 312 \ 2d-code \ 91-02 \ 90130542.ptd 534948 5. Description of the invention (7) Pre-fixing the mesh drum at the other end of the throttle spindle 'thereby' eliminates the need to install the mesh drum on the external thread and nut for the throttle spindle, and it does not require screwing in the nut, which can reduce manufacturing costs. The embodiment has described the throttle body, but the same can be applied to the gasifier. [Description of component number] 1 Throttle body 2 Intake passage 3 Throttle spindle 3A Mating part 3B Fitting groove 3C Male thread 3D Mounting part 4 Throttle valve 5 Spindle bearing hub 5A 刖 End 5B Bottom recess 5C bottom surface 5D rear end 5E guide tube portion 6 main shaft guide hole 7 housing 7A sealed tube portion 7B flange portion 8 rotor

\\ 312 \ 2d-code \ 91-02 \ 90130542.ptd Page 10 534948 V. Description of the invention (8) 8A Coupling hole 8B Rotor lower end 9 Net drum 9A Back 10 Nut B Bolt E-ring S Opening sensor W Flat Gasket

\\ 312 \ 2d-code \ 91-02 \ 90130542.ptd Page 11 534948 Brief Description of Drawings Fig. 1 is a longitudinal sectional view showing an embodiment of an inhalation control device of the present invention. Fig. 2 is a longitudinal sectional view taken along the line A-A in Fig. 1. Fig. 3 is a longitudinal sectional view showing a conventional intake control device.

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Claims (1)

534948 6. Scope of patent application: An intake control device with a rotor that is supported by the throttle body of the throttle body corresponding to the throttle = rotation of the shaft, and has the function of detecting the opening of the throttle valve installed on the throttle shaft. In the inhalation control device of the degree-of-opening sensor, one characteristic is i. The housing 7 of the degree-of-opening sensor has a cylindrical sealing cylinder protruding downward from the lower end 8B of the rotor 8 in the outer circumferential direction of the rotor 8. In addition, in a throttle body 1 having a throttle main shaft 3 that crosses the suction passage 2, a main shaft bearing hub 5 is provided, and the shaft bearing of the main shaft bearing hub 5 is a main shaft guide hole 6 of the throttle main shaft. At the same time, the above-mentioned main shaft rotation shaft is self-supporting, such as ΐ: the outer periphery i of the portion 5A forms a guide cylinder portion 5E along the axial direction. In addition, on one end of the flow main shaft 3, a rotor 8 is formed at the front end portion thereof. A special-shaped coupling portion 3A is formed in the coupling hole 8A. At the same time, the lower part of the coupling hole 3 is inserted into the main shaft guide hole 6 and the second throttle shaft is arranged at the front end portion 5 A of the main shaft bearing hub 5. Protrude inside the cymbal, and then set the joint part 3A of the throttling spindle 3 =, and at the same time Gang seal housing 7 inserted and arranged fixed to the valve body Lang} guide tube portion 5ρ. The suction control device as described in item 1 of the patent application range, wherein a mesh drum 9 is fixedly arranged on the other end of the main shaft of the above section. \\ 312 \ 2d-code \ 91-02 \ 90130542.ptd Page 13