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Check valve with spring retained ball

一种止回阀座、偏置弹簧的技术，应用在阀装置、控制阀、功能阀类型等方向，能够解决复杂度高等问题

Inactive Publication Date: 2012-11-14
BORGWARNER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In all of the above prior art check valves, the complexity is high and multiple parts are required to assemble the check valve assembly within the hydraulic tensioner

Method used

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  • Check valve with spring retained ball
  • Check valve with spring retained ball
  • Check valve with spring retained ball

Examples

Experimental program
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Embodiment Construction

[0033] Figure 3 to Figure 6 A first embodiment tensioner with check valve assembly 106 is shown. The hydraulic tensioner 101 has a housing 102 with a bore 111 having an open end 111a and a tapered end 111b which receives a hollow plunger 103 . A pressure chamber 104 is formed between the plunger 103 and the bore 111 of the housing 102 . Within the pressure chamber 104 is a check valve assembly 106 and a plunger biasing spring 105 with a first end 105a and a second end 105b. The first end 105a of the spring bears against the inner end 103a of the plunger 103 . The second end 105b of the plunger biasing spring 105 has an additional tang 105c with a length extending inwardly from the outer diameter of the spring to retain and limit the travel of the movable sealing member, which The sealing member may be a non-return ball 108 from a non-return ball seat 107 formed by the tapered end 111b of the bore 111 in the pressure chamber 104 .

[0034] In this embodiment, preferably a ...

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Abstract

A portion of a bore of a hydraulic tensioner is used as a check valve seat for a check ball and an end of the plunger biasing spring received in the bore of the hydraulic tensioner has a tang with a length extending in from an outer diameter of the spring, to limit and retain the travel of a check ball from the check valve seat when the pressure of an external source is not greater than the pressure in a fluid chamber formed between the bore of the housing and the plunger.

Description

[0001] References to related applications [0002] This application claims the invention of Provisional Application No. 60 / 805,388, filed June 21, 2006, entitled "CHECK VALVE WITH SPRING RETAINED BALL." This application claims the benefit under Section 35 USC § 119(e) of the US Provisional Application, which is incorporated herein by reference. technical field [0003] The invention relates to the field of check valves. More specifically, the present invention relates to check valves with spring-retained balls. Background technique [0004] Hydraulic tensioners are used to control excessive motion in a power transmission chain or similar power transmission device as the chain travels between multiple sprockets. In a power transmission system, power is transmitted by a continuous endless chain from a drive sprocket, such as a crankshaft, to one or more driven sprockets, such as those that operate a camshaft. During varying power demands, one part of the chain is tight and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H7/08
CPCF16H2007/0859F16H7/0836F16H7/0848F16H2007/0806F16H7/08F16K15/04
Inventor E·帕洛玛基J·W·切坎斯凯小·R·彭佐恩D·史密斯G·L·马克利
Owner BORGWARNER INC