Abstract: Valve assemblies and associated methods are disclosed that may include a spool valve and one or more stationary inserts. In some examples, the stationary inserts may be configured to be fixed within a valve bore of a valve body to provide a fluid seal between an outer surface of the insert and the valve bore. Embodiments may also include valve assembly repair kits that may include a spool valve and a stationary insert for repairing a malfunctioning spool valve and methods for installing the same.

Abstract: Valve assemblies and associated methods are disclosed that may include a spool valve and one or more stationary inserts. In some examples, the stationary inserts may be configured to be fixed within a valve bore of a valve body to provide a fluid seal between an outer surface of the insert and the valve bore. Embodiments may also include valve assembly repair kits that may include a spool valve and a stationary insert for repairing a malfunctioning spool valve and methods for installing the same.

Abstract: There is provided a fluid rerouting system for valve bodies that use hydraulic pressure, via a balance pressure line, to move spools. In an exemplary embodiment, the system comprises a valve sleeve having a plurality of ports that are substantially aligned with a plurality of fluid connections in the mating bore, except that no valve sleeve port aligns with the balance pressure line. The system also includes a spool having a plurality of lands that are sized and configured to fit slidably in said valve sleeve. The combination of the valve sleeve and at least one of the lands form a chamber, fluid access to which is via an aperture traversing the land. Means for blocking the access of said balance pressure line to said valve sleeve are also included.

Abstract: A fluid accumulator assembly used with 2002 to 2005 model years of ZF Getriebe's GmbH ZF-6HP19, ZF-6HP26, ZF-6HP32 automatic transmissions, and model years up to 2011 of Ford's 6R60 automatic transmissions. The fluid accumulator assembly includes a piston that can be received into a bore that is in fluid communication with a solenoid-controlled fluid circuit of the transmission. The fluid accumulator assembly also includes a compression spring sized and configured to fit within the piston, and used to provide an urging force to the piston.

Abstract: There is provided a fluid rerouting system for valve bodies that use hydraulic pressure, via a balance pressure line, to move spools. In an exemplary embodiment, the system comprises a valve sleeve having a plurality of ports that are substantially aligned with a plurality of fluid connections in the mating bore, except that no valve sleeve port aligns with the balance pressure line. The system also includes a spool having a plurality of lands that are sized and configured to fit slidably in said valve sleeve. The combination of the valve sleeve and at least one of the lands form a chamber, fluid access to which is via an aperture traversing the land. Means for blocking the access of said balance pressure line to said valve sleeve are also included.

Abstract: A fluid accumulator assembly used with 2002 to 2005 model years of ZF Getriebe GmbH ZF-6HP19, ZF-6HP26, ZF-6HP32 automatic transmissions, and model years up to 2011 of Ford 6R60 automatic transmissions. The fluid accumulator assembly includes a piston that can be received into a bore that is in fluid communication with a solenoid-controlled fluid circuit of the transmission. The fluid accumulator assembly also includes a compression spring sized and configured to fit within the piston, and used to provide an urging force to the piston.

Abstract: A pump-priming device configured to fit within the pump inlet circuit formed in the valve body of an automatic transmission is disclosed. The present pump priming device comprises a fluid-conducting structure having a fluid inlet and a fluid outlet, which is fabricated from sheet metal or flexible tubing and is designed to be installed within the original equipment manufacture valve body as a drop-in-place component. The present pump priming device diverts the flow of automatic transmission fluid (i.e. regulator exhaust fluid) released by the pressure regulator valve, which under normal operating conditions would flow from the pressure regulator valve back to the sump, and to redirect such flow of regulator exhaust fluid back to the pump inlet. Such redirection of regulator exhaust fluid pressurizes the pump inlet circuit and raises the output of the pump to provide adequate transmission fluid flow within the hydraulic system at low engine speeds.

Abstract: An intermediate shaft assembly for an automotive transmission wherein hydraulic fluid intake ports in the rotating shaft assembly are designed to increase hydraulic fluid flow and improve lubrication to mating components served by the shaft lubrication circuit is disclosed. The hydraulic fluid intake ports are laterally offset from the center plane of the shaft assembly to increase the angle of entry to fluid entering the intake ports and configured to produce a scooping effect within the fluid surrounding the intake ports upon shaft rotation, which substantially increases hydraulic flow into the shaft and counteracts the inhibitory effect of centrifugal force on fluid flow within the ATF intake ports. In addition, the present intermediate shaft assembly includes a flexible transitional diameter to impart axial flexion to the shaft during peak torque events and also provides semicircular spline relief grooves, which reduce areas of stress concentration and potential breakage of the shaft.

Abstract: A replacement solenoid switch valve assembly for an automatic transmission system is disclosed. The switch valve assembly includes a switch valve member, which acts in conjunction with an interlocking valve disc set. The disc set is configured for reciprocating movement in tandem and also enables axial shifting movement of the discs relative to one another to support the functions of the solenoid switch valve assembly. This is accomplished by providing an axial stem which projects in perpendicular relation from a first disc. A mating hole in the second disc is radially disposed on the stem in sliding engagement thereon effectively interlocking the discs in alignment. In an installation method of the present invention, the tandem disc set is provided in standard size as a drop-in replacement for valve bodies that do not exhibit excessive bore wear and also in an oversize embodiment for valve bodies showing excessive wear.

Abstract: An intermediate shaft assembly for an automotive transmission wherein hydraulic fluid intake ports in the rotating shaft assembly are designed to provide increased hydraulic fluid flow and improved lubrication to mating components served by the shaft lubrication circuit is disclosed. The hydraulic fluid intake ports are laterally offset from the center plane of the shaft assembly to increase the angle of entry to fluid entering the intake ports and configured to produce a scooping effect within the fluid surrounding the intake ports upon shaft rotation, which substantially increases hydraulic flow into the shaft and counteracts the inhibitory effect of centrifugal force on fluid flow within the ATF intake ports. In addition, the dimensions of fluid plug orifices and of lubrication outlets on the present shaft assembly have been calibrated to regulate the increased ATF flow and to deliver effective lubrication to the aforementioned mating components.

Abstract: A replacement torque converter clutch regulator valve assembly for an automatic transmission that controls clutch apply circuit pressure to the lockup piston within the torque converter clutch is disclosed. The present torque converter clutch regulator valve assembly includes an internal pressure relief valve that regulates clutch apply circuit pressure in the range of 90 to 100 pounds per square inch in comparison to the original equipment manufacture line pressure of 130 to 140 pounds per square inch thereby preventing deflection and malfunction of the lockup piston in operation. The present torque converter clutch regulator valve assembly also includes a modified switch valve having a fluid restricting baffle formed thereon that eliminates the initial spike in clutch apply circuit pressure at the start of each apply cycle to the torque converter clutch, which reduces shudder and provides improved control of the clutch apply and release circuits.

Abstract: A replacement 1-2 shift valve for an automatic transmission, which restores a smooth shift from first to second gear thereby correcting a shudder shift or a complete failure to shift from first to second gear is disclosed. The present 1-2 shift valve comprises a valve piston including at least one bi-directionally tapered valve stem that changes the direction of transmission fluid flow within the valve such that a rebound force is generated which acts to propel the valve piston in an axial direction toward the second gear position of the valve. The piston lands which comprise the valve piston are provided with a plurality of annular grooves that function to retain transmission fluid and to center the valve piston in its mating bore to resist to side loading during operation. In addition, the present valve piston is provided with an anodized surface finish, which increases service longevity.

Abstract: A Lube Regulated Pressure Regulator Valve including an internal check valve that passes transmission fluid from the hydraulic pump in an amount sufficient to fill the torque converter in the Park gear range and at low engine speeds is disclosed. The internal check valve opens at a substantially lower line pressure than is required to open the original equipment manufacture pressure regulator valve to ensure the torque converter is operational at engine startup. As engine speed increases and sufficient line pressure builds up within the torque converter charge circuit, the internal check valve is closed and the pressure regulator valve opens as it would normally to feed line pressure to the torque converter directly. When the engine is shut off, the internal check valve is biased to a closed position preventing automatic transmission fluid from draining back from the torque converter through the pressure regulator valve to the fluid sump.

Abstract: A manual valve for use within the hydraulic control system of Chrysler automatic transmissions. The present manual valve includes flow control structures to vary its standard functions. In a preferred embodiment the manual valve includes a secondary control land, which blocks and redirects hydraulic fluid to an alternate exhaust channel within the present valve when Park gear range is selected. A control orifice meters flow within the alternate exhaust channel and generates a predetermined backpressure to the pressure regulator valve, which provides an increased flow of hydraulic fluid to the torque converter in the Park gear range. This effectively eliminates delayed engagement of the transmission upon shifting into the Drive and Reverse gear ranges. In addition, the present manual valve includes a reverse metering land, which regulates the effect of fluid shock on the reverse servo piston when the Reverse gear range is selected.

Abstract: A replacement torque converter clutch regulator valve assembly for an automatic transmission that controls clutch apply circuit pressure to the lockup piston within the torque converter clutch is disclosed. The present torque converter clutch regulator valve assembly includes an internal pressure relief valve that regulates clutch apply circuit pressure in the range of 90 to 100 pounds per square inch in comparison to the original equipment manufacture line pressure of 130 to 140 pounds per square inch thereby preventing deflection and malfunction of the lockup piston in operation. The present torque converter clutch regulator valve assembly also includes a modified switch valve having a fluid restricting baffle formed thereon that eliminates the initial spike in clutch apply circuit pressure at the start of each apply cycle to the torque converter clutch, which reduces shudder and provides improved control of the clutch apply and release circuits.

Abstract: A manual valve for use within the hydraulic control system of Chrysler automatic transmissions is disclosed. The present invention provides a reconfigured manual valve including flow control structures to vary its standard functions. In a preferred embodiment the present valve includes a secondary control land, which blocks and redirects hydraulic fluid to an alternate exhaust channel within the present valve when Park gear range is selected. A control orifice meters flow within the alternate exhaust channel and generates a predetermined backpressure to the pressure regulator valve, which provides an increased flow of hydraulic fluid to the torque converter in the Park gear range. This effectively eliminates delayed engagement of the transmission upon shifting into the Drive and Reverse gear ranges. In addition, the present manual valve includes a reverse metering land, which regulates the effect of fluid shock on the reverse servo piston when the Reverse gear range is selected.

Abstract: The present invention relates to automatic transmissions of land motor vehicles. In particular the present invention refers to the field of automatic transmission torque converter clutch regulator valves. The present invention comprises of a first spool valve, a second spool valve that attaches to the first spool valve, a sleeve valve that attaches to the second spool valve and an end plug that is placed on the sleeve valve. The valve assembly controls the volume supplied to the apply circuit. The present invention limits both apply and release pressure circuit. The valves of the present invention fit into existing bores and control both circuits. The switch valve prevents main line drop during apply circuit regulation.