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Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty

A technology of clutches and action valves, which is applied to transmission devices, fluid transmission devices, etc., can solve problems such as hydraulic loss and achieve the effect of reducing trembling

Inactive Publication Date: 2006-05-24
SONNAX INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is a loss of hydraulic pressure within the TCC action circuit 330 requiring replacement of the expensive valve body 301

Method used

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  • Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty
  • Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty
  • Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty

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Embodiment Construction

[0027] image 3 An alternative TCC-action valve assembly 100 of the present invention is shown. The TCC action valve assembly 100 includes an action valve plug 110 having an expandable PTFE (Teflon). Expandable oil seal 102, or other similar oil seal, is placed in bore 325 at the primary wear location to prevent ATF leakage. The expandable oil seal 102 may include an optional expansion spring 105 disposed inside the expandable oil seal in coaxial relationship with the expandable oil seal.

[0028] Figure 4 More detailed structural characteristics of the active valve plug 110 are shown. The active valve plug 110 provides structures and features that include an expandable oil seal, including but not limited to the following structures. Active valve plug 110 includes a primary control ring land 115 within which is an annular oil seal groove 108 having sufficient depth to receive expandable oil seal ring 102 . The expandable oil seal ring 102 is substantially rectangular in ...

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Abstract

This invention provides a replaced torque changeable clutch action valve for automatic speed variator and method for restoring the hydraulic integrity. Said action valve consists of extensible valve plug of oil seal ring made from Teflon (or other similar material) installed on the main wearing place in valve to reduce the ATF leakage. Said valve plug contains inner liquid path way radial extended in radiation direction forming mutual communication with circular concave groove of oil seal ring. Said action valve driven by electromagnetic valve, the TCC signal pressure forcing ATF entering the path way of valve plug, making oil seal ring expansion to contact with hole and minimizing the ATF leakage in operation of torque changeable clutch.

Description

technical field [0001] The present invention is mainly related to the field of hydraulic circuits in automatic transmissions, and more specifically, about the torque-variable clutch (hereinafter referred to as "TCC") action valve in the General Motors 4T60-E and other similar transmissions, which will change The torque converter hydraulics are sent to the TCC apply and release circuits to actuate the torque changing clutches. Background technique [0002] The original design of the automatic transmission system included a hydraulic circuit subsystem consisting of at least one hydraulic pump, a valve body with a fluid conducting passage or circuit, input and output ports within the fluid circuit, and multiple so-called "Spin valve" because of its shape resembling a spinning spool. This spinning valve consists of an improved cylindrical piston, which alternately opens and closes the liquid inlet and outlet in the valve body to adjust the flow and pressure of automatic transmi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/14
Inventor 毛拉·琼·斯黛福德
Owner SONNAX INDS
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