Borgwarner Inc.

David C Mills

Garrett Robert Holmes

Jeffrey J Waterstredt

Scott M Weber

Melissa Mei Koenig

William Vukovich

Howard Saxon

Ryan M True

Xiaoning Xiang

Aaron Biefer

Garrett R Holmes

A transmission valve manifold can include a single, unitary, monolithic, manifold body (). The body () can have a plurality of fluid passageways () and fluid chambers (-----). Each chamber (-----) can receive one of a cylinder body (--), solenoid valve (-), or spool valve (-). A first passageway () can follow a path that extends along three axes through an interior of the body () to connect at least one of the chambers (-----) with at least one other chamber (-----). The first passageway () can overlap a second passageway () within the body (). The body () can be manufactured by laser sintering of successive layers of laser sinterable material ().

Transmission valve manifold and method of manufacturing a transmission valve manifold

A solenoid actuator is provided which has a lower housing having a generally axially extending portion joined to an end cap with a central opening. An upper housing of the solenoid actuator is formed from a flat stock with a main body with radially extending slot separated legs which are plastically deformed into a cylindrical portion for press fit acceptance with an outer diameter of lower housing axially extending portion.

Solenoid actuator assembly with press fit housing assembly

A solenoid valve assembly is provided which includes a ferromagnetic casing forming a generally tubular envelope, a flux tube integrally formed with the casing and extending axially generally there from defining and axially extending annular space there between, the flux tube having a first portion connected with the casing and a second portion integral with the first portion be divided there from by a flux choke, and also including an armature aligned and slidably mounted within the flux tube for imparting movement to a valve member.

Mono bearing one piece core solenoid

A solenoid valve is provided having a hydraulic body with an undulated expansion artery to prevent an exchange of fluid between an interior of the hydraulic body and the exterior of the solenoid valve.

Method for solenoid motor venting with contamination protection via a hydraulic sleeve

A hydraulic circuit () for an automatic transmission () that employs a shift actuation valve () that controls the actuation of the synchronizer () for selectively controlling gear engagement. The shift actuation valve () includes a valve member () having at least one valve element () with an outer diameter () and a metering face (). The metering face () is adapted to control the flow of pressurized fluid between an inlet () and an outlet () of the valve body (). The metering face () includes a flow force compensating annular void () disposed adjacent the outer diameter () and that is defined by a lead angle &#x3b1; measured between the outer diameter () and a line intersecting the outer diameter () and tangential to the annular void (). A solenoid () is employed to move the valve member () between predetermined positions.

Hydraulic circuit for automatic transmission having area controlled shift actuator valve with flow force compensation

An automatic transmission having at least one hydraulic valve with flow force compensation. The hydraulic valve includes a valve body having a valve bore and at least one inlet and at least one outlet adapted to provide fluid communication with a source of pressurized hydraulic fluid and a return to the source of pressure. A valve member is slidingly disposed within the valve body that includes at least one valve element having an outer diameter and a metering face. The metering face is adapted to control the flow of pressurized hydraulic fluid between the inlet and the outlet of the valve body. The metering face includes a flow force compensating annular void disposed adjacent to the outer diameter that is defined by a lead angle &#x3b1; measured between the outer surface and a line intersecting the outer surface and tangential to the annular void.

Automatic transmission having hydraulic valves with flow force compensation

A solenoid control valve is described wherein the valve employs a precision molded plastic valve seat member, a corresponding control valve body which includes flying buttresses for supporting and distributing loads on the control valve body, and armature vent features.

On/off solenoid

A pulse width modulated solenoid control valve is described, wherein the valve includes a polymer fluid control body. The body includes a segmented fluid flow path for providing strength to the fluid control body assembly. Stand off ribs are provided to improve assembly into a control manifold. A casing forms an integral flux tube. A tapered push rod is used to reduce flux shorting.

Growing community of inventors

Lake Orion, MI, United States of America

David C Mills