Throttle valve system

Abstract

The utility model provides a throttle valve system. The throttle valve system comprises a throttle valve body, a connecting seat, an ECU (Electronic Control Unit) and an air injection valve pressing cap, a main gas channel and a gas input channel are formed in the throttle valve body, and the gas input channel is communicated with the main gas channel; the lower end of the connecting seat is connected with the throttle valve body, the upper end of the connecting seat is connected with the ECU, and an integrated circuit board is arranged in the ECU; the gas injection valve pressing cap is connected with the throttle valve body and provided with a gas channel, and the output end of the gas channel communicates with the end, away from the main gas channel, of the gas input channel. The air injection valve pressing cap is further connected with the connecting base. According to the technical scheme, the connecting base is connected with the snifting valve pressing cap, so that low-temperature fuel gas can take away heat on the connecting base to cool the connecting base, and heat transmitted to an ECU above the connecting base is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, and particularly relates to a throttle system. BACKGROUND

[0002] The throttle system of the automobile is communicated with the engine, and fuel gas and air are mixed in the throttle system and then enter the engine for combustion. In order to mix the fuel gas and air uniformly, the intake amount of the fuel gas and air needs to be adjusted, and generally, the throttle system further comprises an ECU.

[0003] In practice, it is found that a large amount of heat generated by the engine during operation is transferred to the vicinity of the ECU of the throttle system, and the ECU is easily affected by the heat transferred from the engine. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a throttle system, so that one or more of the above problems existing in the prior art and other aspects can be solved or at least alleviated.

[0005] The utility model provides a throttle system, comprising:

[0006] A throttle valve body, a main gas channel and a fuel gas input channel are formed in the throttle valve body, and the fuel gas input channel is communicated with the main gas channel;

[0007] A connecting seat, the lower end of the connecting seat is connected with the throttle valve body;

[0008] An ECU, the ECU is internally provided with an integrated circuit board, and the ECU is connected with the upper end of the connecting seat; and

[0009] A jet valve pressure cap, which has a fuel gas channel, and the output end of the fuel gas channel is communicated with one end of the fuel gas input channel away from the main gas channel;

[0010] The connecting seat is connected with the jet valve pressure cap.

[0011] Preferably, the fuel gas channel comprises:

[0012] A fuel gas outlet channel, one end of the fuel gas outlet channel is communicated with the fuel gas input channel to form a jet valve mounting channel; and

[0013] A fuel gas inlet channel, the fuel gas inlet channel is communicated with one end of the fuel gas outlet channel away from the fuel gas input channel;

[0014] The jet valve mounting channel is provided with a jet valve, and the jet valve is used for conveying the fuel gas conveyed by the fuel gas inlet channel to the fuel gas input channel.

[0015] Preferably, the pressure cap of the jet valve also has the following opening:

[0016] The first detection channel, one end of which is connected to the gas intake channel;

[0017] The connector has a second detection channel; the upper end of the second detection channel is connected to the ECU; a pressure sensor is installed in the upper end of the second detection channel; the lower end of the second detection channel is connected to the end of the first detection channel away from the gas intake channel; the pressure sensor is electrically connected to the integrated circuit board in the ECU.

[0018] Preferably, the first detection channel and the gas outlet channel are located on one side of the gas inlet channel.

[0019] Preferably, the axis of the gas outlet passage is inclined toward the outlet of the main gas passage.

[0020] Preferably, the end of the gas outlet passage near the gas input passage is lower than the other end thereof; the end of the jet valve cap near the throttle body is lower than the other end thereof.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In this invention, since the connecting seat is connected to the jet valve cap, the low-temperature gas can carry away the heat from the connecting seat, cooling the connecting seat and thus reducing the heat transferred to the ECU above the connecting seat. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Figure 1 This is a perspective view of a throttle valve system according to an embodiment of the present invention (partial throttle valve body and part of ECU removed);

[0025] Figure 2 for Figure 1 Another 3D image (left side);

[0026] Figure 3 for Figure 2 Internal structure diagram (top view);

[0027] Figure 4 for Figure 3 Another schematic diagram (without the jet valve);

[0028] Figure 5 For Figure 1 The first detection path and the second detection path cooperate with each other.

[0029] Reference signs:

[0030] 10, throttle valve body; 11, main gas passage; 12, gas input channel;

[0031] 20, connecting seat; 21, second detection path;

[0032] 30, ECU;

[0033] 40, gas injection valve pressure cap; 41, gas passage; 411, gas outlet passage; 412, gas inlet passage;

[0034] 42, first detection path;

[0035] 50, gas injection valve. DETAILED DESCRIPTION

[0036] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and therefore only serve as examples, and cannot limit the protection scope of the utility model.

[0037] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by the technical personnel in the field to which the utility model belongs.

[0038] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0039] In addition, the terms "first", "second", and the like are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0040] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] Referring to Figures 1 to 5 The present embodiment provides a kind of throttle system, including throttle valve body 10, connecting seat 20, ECU 30 and jet valve pressure cap 40.

[0043] Main gas channel 11 and fuel gas input passage 12 are set on throttle valve body 10, fuel gas input passage 12 is communicated with main gas channel 11.The lower end of connecting seat 20 is connected with throttle valve body 10, connecting seat 20 is integrally formed with throttle valve body 10.ECU 30 is built-in integrated circuit board, and the upper end of ECU 30 is connected with connecting seat 20.Jet valve pressure cap 40 has fuel gas passage 41, and the output end of fuel gas passage 41 is communicated with the end of fuel gas input passage 12 away from main gas channel 11.Connecting seat 20 is connected with jet valve pressure cap 40, and jet valve pressure cap 40 is connected with throttle valve body 10.

[0044] In the embodiment, low-temperature fuel gas is input into main gas channel 11 through fuel gas passage 41 on jet valve pressure cap 40 and fuel gas input passage 12 on throttle valve body 10, mixed with air and then input into engine.As connecting seat 20 is connected with jet valve pressure cap 40, low-temperature fuel gas can take away heat on connecting seat 20, cooling connecting seat 20, thereby reducing the heat transferred to ECU 30 above connecting seat 20, so that the integrated circuit board in ECU 30 works in a suitable temperature range.

[0045] In one embodiment, fuel gas passage 41 includes fuel gas outlet passage 411 and fuel gas inlet passage 412.

[0046] One end of the gas outlet passage 411 is communicated with the gas inlet passage 12 to form a jet valve mounting passage, and the jet valve 50 is arranged in the jet valve mounting passage. The gas inlet passage 412 is communicated with the gas outlet passage 411 away from the gas inlet passage 12. The jet valve 50 is used to deliver the gas delivered by the gas inlet passage 412 to the gas inlet passage 12. The outer wall of both ends of the jet valve 50 is sealed with the inner wall of the gas outlet passage 411. The jet valve 50 adopts the prior art, and the flow of the gas is controlled through the jet valve 50. The jet valve 50 is provided with a gas-permeable diaphragm away from the gas inlet passage 12, and a gas-permeable hole is formed in the other end of the jet valve 50. The gas passes through the gas-permeable diaphragm and the internal space of the jet valve 50 and then enters the gas inlet passage 12 from the gas-permeable hole.

[0047] In addition, the gas outlet passage 411 is coaxial with the gas inlet passage 12, and the gas outlet passage 411 and the gas inlet passage 412 are perpendicular to each other, thereby facilitating processing.

[0048] In one embodiment, the jet valve pressure cap 40 is further provided with a first detection channel 42.

[0049] One end of the first detection channel 42 is communicated with the gas inlet passage 412. The connecting seat 20 is provided with a second detection channel 21. The upper end of the second detection channel 21 is communicated with the ECU 30. A pressure sensor is arranged in the upper end of the second detection channel 21. The lower end of the second detection channel 21 is communicated with the end of the first detection channel 42 away from the gas inlet passage 412. The pressure sensor is electrically connected with the integrated circuit board in the ECU. The ECU detects the pressure of the gas in the second detection channel 21 through the pressure sensor.

[0050] In this embodiment, the conventional gas is input from below the throttle valve body 10. When the pressure of the gas is detected, the sensor on the gas pipeline below the throttle valve body 10 needs to be electrically connected with the ECU above, and a wire needs to be laid, which is troublesome and the structure is relatively complex. In this throttle system, the jet valve pressure cap 40 is located on the side of the throttle valve body 10 and close to the ECU 30, so that the first detection channel 42 and the second detection channel 21 can be directly communicated, and the ECU in the ECU 30 can be directly electrically connected with the pressure sensor, without the need of laying a wire, which is convenient for early installation and later maintenance, and the structure is also more compact. Moreover, since the jet valve pressure cap 40 is connected with the connecting seat 20, the overall length of the first detection channel 42 and the second detection channel 21 is optimized, and the relatively shorter first detection channel 42 and second detection channel 21 make the detection result of the ECU relatively more accurate.

[0051] In one embodiment, the first detection channel 42 and the gas outlet passage 411 are located on one side of the gas inlet passage 412, and the first detection channel 42 and the gas outlet passage 411 are arranged side by side, so that the jet valve pressure cap 40 can be more compact.

[0052] In addition, the axis of the first detection channel 42 is preferably parallel to the axis of the gas outlet passage 411, and the parallelism of the first detection channel 42 and the gas outlet passage 411 can reduce the overall transverse area and facilitate processing.

[0053] In one embodiment, the axis of the gas outlet passage 411 is inclined to the outlet of the main gas channel 11. When the gas passes through the gas outlet passage 411 and the gas inlet passage 12 to enter the main gas channel 11, the path of the gas in the main gas channel 11 can be regarded as an inclined line segment, which makes the gas distributed in the axial and radial directions of the main gas channel 11, thereby making the gas and air more uniformly mixed.

[0054] In one embodiment, the gas outlet passage 411 is lower at one end close to the gas inlet passage 12 than at the other end, and the jet valve pressure cap 40 is lower at one end close to the throttle valve body 10 than at the other end, which makes the gas inlet passage 412 higher than the gas outlet passage 411, and at the same time, the gas inlet passage 412 and the first detection channel 42 are closer to the ECU 30, so that the total length of the first detection channel 42 and the second detection channel 21 is shorter, which is beneficial to the improvement of the detection accuracy of the ECU.

[0055] In the specification of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the specification.

[0056] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should be covered in the scope of the claims and the specification of the utility model.

Claims

1. A throttle system characterized by, The utility model relates to a kind of gas injection valve and its installation structure, including: Throttle valve body (10), main gas passage (11) and fuel gas input channel (12) are opened on the throttle valve body (10), the fuel gas input channel (12) is communicated with the main gas passage (11); Connecting seat (20), the lower end of the connecting seat (20) is connected with the throttle valve body (10); ECU (30), ECU (30) is built-in integrated circuit board, ECU (30) is connected with the upper end of the connecting seat (20);And Jet valve pressure cap (40), with fuel gas passage (41) and the output end of the fuel gas passage (41) is communicated with the fuel gas input channel (12) one end away from the main gas passage (11); The connecting seat (20) is connected with the jet valve pressure cap (40).

2. A throttle system as claimed in claim 1, characterized in that The fuel gas passage (41) includes: Fuel gas outlet passage (411), one end of the fuel gas outlet passage (411) is communicated with the fuel gas input channel (12) and forms jet valve installation channel;And Fuel gas inlet passage (412), the fuel gas inlet passage (412) is communicated with the fuel gas outlet passage (411) one end away from the fuel gas input channel (12); Jet valve (50) is arranged in the jet valve installation channel;The jet valve (50) is used to send the fuel gas of the fuel gas inlet passage (412) to the fuel gas input channel (12).

3. A throttle system as claimed in claim 2, wherein First detection channel (42) is also opened in the jet valve pressure cap (40), one end of the first detection channel (42) is communicated with the fuel gas inlet passage (412); Second detection channel (21) is opened in the connecting seat (20), the upper end of the second detection channel (21) is communicated with the ECU (30), pressure sensor is arranged in the upper end of the second detection channel (21), the lower end of the second detection channel (21) is communicated with the one end of the first detection channel (42) away from the fuel gas inlet passage (412), and the pressure sensor is electrically connected with the integrated circuit board in the ECU. The first detection channel (42) and the fuel gas outlet passage (411) are located on one side of the fuel gas inlet passage (412).

4. A throttle system as claimed in claim 3, wherein The axis of the fuel gas outlet passage (411) is inclined to the outlet of the main gas passage (11).

5. A throttle system as claimed in claim 4, wherein The one end of the fuel gas outlet passage (411) close to the fuel gas input channel (12) is lower than the other end thereof, and the one end of the jet valve pressure cap (40) close to the throttle valve body (10) is lower than the other end thereof.

6. A throttle system as claimed in claim 5, wherein ​

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