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Hydraulic adjusting device and one-way valve

A one-way valve and bonnet technology, applied in the hydraulic field, can solve the problems of reduced sealing performance, inclined spring, failure of the valve ball to block the channel, etc., and achieve the effect of high anti-bending ability and anti-tilting ability.

Inactive Publication Date: 2019-06-18
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the assembly and working process of the check valve, there is a risk of the spring tilting, and the tilting of the spring will cause the valve ball to be unable to block the channel, resulting in a decrease in sealing performance

Method used

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  • Hydraulic adjusting device and one-way valve
  • Hydraulic adjusting device and one-way valve
  • Hydraulic adjusting device and one-way valve

Examples

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Embodiment Construction

[0035] It can be seen from the background art that during the assembly and working process of the check valve, there is a risk of the spring tilting, and the tilting of the spring will cause the valve ball to fail to perform the sealing function.

[0036] The reasons for the inclination of the spring are analyzed below.

[0037] Please refer to figure 1 and figure 2 , figure 1 is a cross-sectional view of a one-way valve; figure 2 yes figure 1 A schematic diagram of the tilting of the spring of the one-way valve.

[0038] Such as figure 1 As shown, the check valve includes a valve ball 1, a bonnet 2 and a spring 3. During the assembly process, as figure 2 As shown, there is a risk of the spring tilting.

[0039] There are several reasons for the spring to tilt:

[0040] 1. Due to the limited performance of the equipment, it is difficult to control the dimensions of the spring, such as the inner diameter, free length, and closed coils at both ends. In addition, the s...

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Abstract

The invention discloses a hydraulic adjusting device and a one-way valve. The one-way valve comprises a valve cap and an elastic part, wherein the valve cap is provided with a valve cap cavity; the elastic part is arranged in the valve cap cavity, the elastic part comprises an elastic bearing part and an annular surface supporting part, the periphery of the elastic bearing part is fixed at one axial end of the annular surface supporting part, the other axial end of the annular surface supporting part is in contact with the bottom of the valve cap, the elastic bearing part can elastically deform in the axial direction of the valve cap cavity, and the diameter of the annular surface supporting part is smaller than the inner diameter of the valve cap. According to the one-way valve, the annular surface supporting part of the elastic part is of an integrated structure, so that high bending resistance and inclination resistance are achieved, and meanwhile, the integrated structure of the annular surface supporting part can also prevent a valve core from being embedded into the elastic part.

Description

technical field [0001] The embodiments of the present invention relate to the field of hydraulic technology, and in particular to a hydraulic regulating device and a one-way valve. Background technique [0002] Hydraulic lash adjusters (sometimes referred to as "tappets") for internal combustion engines have been used for many years to eliminate the gap or gap between engine valve train components under changing operating conditions, thereby maintaining efficiency and reducing valve train noise and wear. [0003] The one-way valve of the hydraulic clearance adjuster includes a valve ball, a spring and a bonnet, and a groove is provided at the bottom of the bonnet so that the spring can be sleeved in the groove to guide the spring and prevent the spring from tilting. The one-way valve is arranged at the bottom of the plunger receiving hole, and is used to open or close the oil channel. The hydraulic oil can flow into the high-pressure oil chamber through the one-way valve, ...

Claims

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Application Information

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IPC IPC(8): F16K15/04
Inventor 熊超
Owner SCHAEFFLER TECH AG & CO KG
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