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Cooling-water control valve device

A cooling water, control valve technology, applied in valve device, coolant flow control, engine cooling, etc., can solve the problem of position change of valve opening movement, great flexibility, increase parts tolerance, etc., to reduce the change , The effect of improving motion accuracy and increasing clearance accuracy

Active Publication Date: 2020-08-14
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the presence of multiple related components, there may be an increased cause of variation in part tolerances necessitating the need to increase clearances S1 and S2
[0006] However, when the gaps S1 and S2 become larger, the sealing performance of the valve member can be ensured on the one hand, but on the other hand, the alignment accuracy of the seat surface may be reduced due to the large flexibility of the position of the seat member
As a result, the position at which the valve member begins its valve opening movement may change

Method used

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  • Cooling-water control valve device
  • Cooling-water control valve device
  • Cooling-water control valve device

Examples

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no. 2 example

[0070] Will refer to Figure 5 The cooling water control valve device 102 (hereinafter referred to as the valve device 102) of the second embodiment will be described. In the second embodiment, the structure of the pipe unit 80 is different from that of the first embodiment. The duct unit 80 has an outlet side pipe member 81 and a spacer member 82 formed separately from each other. The outlet side pipe member 81 has a cylindrical pipe portion 83 and a flange portion 84 formed integrally with each other. The partition member 82 has an outer cylindrical portion 44 and an inner cylindrical portion 43 formed integrally with each other. The spacing member 82 has a double pipe structure. A gasket member 87 is provided between the flange portion 84 and the housing 20.

[0071] According to the second embodiment, the same advantages as the first embodiment can be obtained. In addition, since the pipe unit 80 is divided into the outlet-side pipe member 81 and the spacing member 82, ea...

no. 3 example

[0073] Will refer to Image 6 The cooling water control valve device 103 (hereinafter referred to as the valve device 103) of the third embodiment will be described. Image 6 The valve state where the valve device 103 is in the valve closed state is shown.

[0074] The housing 24 of the valve device 103 except for the valve accommodation space 22 and the motor accommodation space 23 ( Image 6 Not shown in) also includes a safety valve accommodating space 25. The safety valve accommodating space 25 is closer to the sensor cover 30 (not in Image 6 The one side shown in) is located at a radially outer position of the outer cylindrical portion 44 of the pipe unit 90. The safety valve accommodating space 25 is a space for accommodating the safety valve 26 and communicating with the valve accommodating space 22.

[0075] The pipe unit 90 has a main fluid passage 91 and a safety valve side fluid passage 92, passing through the side wall valve opening 12 ( Image 6 The cooling water (not...

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Abstract

A cooling-water control valve device (101) includes a valve member (10), a housing (20) for accommodating the valve member, a pipe unit (40), a valve seat member (60), a spring (71) and so on. The pipe unit has, at its axial end on a side facing to the valve member, an outside cylindrical portion (44) and an inside cylindrical portion (43), which is coaxially arranged with the outside cylindricalportion (44) at a radial-inside position of the outside cylindrical portion (44). An annular accommodation space (47) is formed between the inside cylindrical portion (43) and the outside cylindricalportion (44). The spring (71) and the valve seat member (60) are arranged in the annular accommodation space (47).

Description

Technical field [0001] The present disclosure relates to a cooling water control valve device. Background technique [0002] Cooling water control valve devices are known in the art, and the flow rate of cooling water flowing through the internal combustion engine is controlled accordingly. According to a cooling water control valve device (hereinafter referred to as a valve device), for example, Japanese Patent No. 6330947, which includes a housing, a spherical valve member movably provided in the housing, and a valve to be pushed to the outer peripheral wall of the spherical valve member Valve seat components, etc. [0003] The valve seat member has an annular valve seat surface. The valve seat surface protrudes into the valve receiving space formed in the housing. When the valve seat surface is in contact with the outer peripheral surface of the spherical valve member having the spherical surface, the gap between the valve seat member and the spherical valve member is sealed....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/14
CPCF01P7/14F01P2007/146F16K5/061F16K5/0689F16K3/26F16K25/00
Inventor 佐野亮
Owner DENSO CORP