CN201092892Y

CN201092892Y - Modified type mechanical vehicle air throttle body

Info

Publication number: CN201092892Y
Application number: CNU2007200808678U
Authority: CN
Inventors: 肖传良; 张德政; 康俊生; 张楠; 王永超
Original assignee: Sichuan Hongguang Auto Machinery Electric Co Ltd
Current assignee: Sichuan Hongguang Auto Machinery Electric Co Ltd
Priority date: 2007-08-31
Filing date: 2007-08-31
Publication date: 2008-07-30
Anticipated expiration: 2017-08-31

Abstract

An improved mechanical type automobile throttle valve body belongs to an air inlet control device of an automobile explosive motor, which comprises a throttle valve body, an air throttle shaft which is installed on the body, an air throttle plate, a rotating frame component and a torsional spring which are installed on the air throttle shaft and an idle speed adjusting bolt, wherein an idle speed adjusting bolt seat is installed and fixed on the throttle valve body through a screw, an internal channel of the idle speed adjusting bolt seat is linked with a by-pass channel in the body to form an idle speed by-pass channel, a step motor is installed on the idle speed adjusting bolt seat, the head of the step motor is located in the idle speed by-pass channel, and the moving direction of the head of the step motor is opposite to the air flow direction. The idle speed by-pass channel is designed on the idle speed adjusting bolt seat of an independent component, thereby the manufacture of the by-pass channel in a casting die becomes easier, the reject rate is reduced, the manufacturing cost is lowered, and simultaneously the precision degree of idle speed control is increased.

Description

Modified model mechanical type vehicle air throttle

Technical field

The utility model relates to a kind of Intaker controller that is used for car combustion engine, is specially adapted to the mechanical type throttle body of electronic fuel injection system.

Background technique

At present, as the throttle body assembly of the Intaker controller of automobile internal motor, its tb is that an integral aluminum alloy belongs to die castings, is provided with air inlet main passage and idling by-pass in it.Its effect is to adjust the air inlet supply, to adapt to engine start, the performance need under the different operating modes such as idling, acceleration, power character, Economy and the emission performance of assurance motor.Form the perforate of idling by-pass in this integral die-cast part, the difficulty that manufactures and designs of die casting mould is strengthened, simultaneously, during die-casting process, crooked place, by-pass forms trachoma, pore easily and produces waste product.And, to consider the installation position of stepper motor in design, and make the requirement of the air flow of its movement direction that satisfies the stepper motor head in the idling by-pass that this just makes the bending status of idling by-pass more complicated (referring to that bending increases).It is just bigger to offer the difficulty of this by-pass in an integral die-cast part by pressure casting method.

The model utility content

The purpose of this utility model provides a kind of modified model mechanical type vehicle air throttle so that the manufacture difficulty of body die castings reduces, simultaneously, satisfy the stepper motor head movement towards requiring.

This novel purpose is achieved in that a kind of modified model mechanical type vehicle air throttle, comprise tb, be installed in the throttle plate pin on the body, be installed in throttle blade, swing frame assembly and torsion spring on the throttle plate pin, stepper motor, idle adjusting screw is mounted with the idle valve seat through screw on the tb, and an internal channel of idle valve seat is connected formation idling by-pass with intrinsic by-pass; Stepper motor is installed on the idle valve seat, the head of stepper motor is arranged in the idling by-pass, and the movement direction of stepper motor head is over against air flow.

Above-mentioned idle adjusting screw adopts tapping screw.

The key of technique scheme is, designs an idling valve seat separately, installs and fixes stepper motor on it, offers the idling by-pass in it separately, and the requirement of stepper motor head movement direction over against air flow satisfied in being provided with of by-pass.The idling valve seat fixes through screw and body, and the idling by-pass in the valve seat is connected mutually with the by-pass on the body main passage, constitutes complete idling by-pass.

This novel beneficial effect is:

1, manufacture cost reduces

Owing to the by-pass design on the idling valve seat of individual components, only need be provided with main passage and part by-pass on the body die castings, be about to original integrated type die castings and be divided into two parts.The making of idling by-pass in the die castings is become easily, reduced the waster rate, reduced manufacture cost.

2, improved end product quality

To have the idling valve seat split setting of by-pass, die-casting process separately, make the processing of by-pass become easy, and the fine requirement that must satisfy stepper motor head movement direction over against airflow direction of energy, thereby improve the accurate degree of motor air inflow (air inflow than nominal situation time little) under idling operation, improved quality of product.

3, water circulation channel is independently heated in design on the body, the phenomenon of freezing around the throttle blade in the time of can effectively preventing the winter cold start-up.

4, idle adjusting screw is selected tapping screw for use, tapping screw the time is satisfying in assembling and is being easier to staff's operation under the identical usage requirement situation, accelerated working efficiency, simultaneously, the inaccuracy of the location when adopting tapping screw can reduce personnel's turn (be made up of screw bolt and nut by former idle adjusting screw, during assembling, need to use pliers to clamp nut, use simultaneously to change cutter turn bolt).

5, design attitude sensor socket on the body has dwindled the profile space of body.

Description of drawings

Fig. 1 Fig. 2 is respectively this novel plan view and worm's eye view;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the sectional drawing of Fig. 1 along the A-A line;

Fig. 5 is the sectional drawing of Fig. 2 along the B-B line;

Fig. 6 is an E portion enlarged view shown in Figure 3;

Fig. 7 is the stereogram of idling valve seat shown in Figure 2;

Fig. 8 is the plan view of idling valve seat shown in Figure 2;

Fig. 9 is the sectional drawing of Fig. 8 along the C-C line;

Figure 10 is the sectional drawing of Fig. 2 along the D-D line.

Embodiment

Fig. 1 Fig. 2 illustrates, and on body, throttle blade 3, swing frame assembly 8 and torsion spring 9 are installed on the throttle plate pin through Bearing Installation for throttle plate pin 2; Be mounted with idle valve seat 4 through screw on the tb 1, an internal channel 12a of idle valve seat is connected formation idling by-pass 12 with intrinsic by-pass; Stepper motor 5 is installed on the idle valve seat, the head of stepper motor is arranged in idling by-pass 12, and the movement direction of stepper motor head is over against air flow (referring to Fig. 4 Fig. 9 Figure 10).That is to say that this novel aluminum alloy body die castings is divided into two individual part of main passage parts and by-pass parts (being the idle valve seat), like this, can simplify the moulds of industrial equipment of die-casting process, particularly makes the processing of idling by-pass become easy.Referring to Fig. 6, idle adjusting screw adopts tapping screw 7.Referring to Fig. 4, tb 1 is provided with and independently heats water circulation channel 10, as is connected with the external world with inlet tube and outlet tube 6, the 6a that constitutes the circulatory system be riveted on the body and with heat water circulation channel 10 and be connected.Referring to Fig. 1 Fig. 5, tb 1 is provided with position transducer socket 11.

The utility model belongs to the applicant's HGD55P product.

Claims

1. modified model mechanical type vehicle air throttle, comprise tb (1), be installed in the throttle plate pin (2) on the body, be installed in throttle blade (3), swing frame assembly (8) and torsion spring (9) on the throttle plate pin, stepper motor (5), idle adjusting screw is characterized in that: described tb (1) is gone up and is mounted with idle valve seat (4) through screw, and an internal channel (12a) of idle valve seat is connected formation idling by-pass (12) with intrinsic by-pass; Described stepper motor (5) is installed on the idle valve seat, the head of stepper motor is arranged in idling by-pass (12), and the movement direction of stepper motor head is over against air flow.

2. according to the described modified model mechanical type of claim 1 vehicle air throttle, it is characterized in that: described idle adjusting screw adopts tapping screw (7).

3. according to claim 1 or 2 described modified model mechanical type vehicle air throttles, it is characterized in that: described tb (1) is provided with and independently heats water circulation channel (10), as is connected with the external world with the inlet tube and outlet tube that constitutes the circulatory system (6,6a) be riveted on the body and with heat water circulation channel (10) and be connected.

4. according to the described modified model mechanical type of claim 3 vehicle air throttle, it is characterized in that: described tb (1) is provided with position transducer socket (11).