Bendix Europe Services Techniques

Delphi Technologies, Inc.

Alliedsignal Europe Services Techniques

Bosch Systems De Freinage

Other

Gm Global Technolgoy Operations, Inc.

Delphi France Automotive Systems

Bosch Systems De Freingae

Philippe Georges Castel

Roland Levrai

Patrice Moinard

Guy Meynier

Pierre Pressaco

Michael William Fanelli

Pascal Le Normand

Gilbert Kervagoret

Olivier Castello

Bernard Petin

Roger Sherrill Sexton

Daniel Lordier

Ulysse Verbo

Jean-Jacques Carre

Jean Pierre Gautier

Timothy Allen Haerr

Miguel Perez Revilla

Craig A Osterday

Michel J Vermoesen

Patrick T MacLellan

Christian Douillet

Jacques Nollez

Michael A Kasselman

Jean-Michel Pichon

William L Van Doren

Jacques Laurent

Joseph Genaudeau

Raymond R Ombredane

Frederic C Degorce

Mike W Fanelli

Jean-Michel Dubus

Michael J Vermoesen

William Lee Van Doren

Jacques Loche

Joseph M Genaudeau

Master cylinder assembly () for hydraulic control includes a master cylinder body () having a longitudinal bore (). A piston () is arranged in the said bore and includes a seal packing () separating two chambers () adapted to contain a liquid. The piston also includes a recovery conduit () connecting the chambers and by-passes the seal packing, and a valve (). When the piston is in a rest position, an actuator () adjusts the position of the valve between an open position opening the recovery conduit and a closed position closing the recovery conduit.

Master cylinder assembly

A brake booster apparatus having a housing with oppositely disposed first and second walls. A first connector is disposed in the first wall and a second connector is disposed in the second wall. An elongate hollow member is deformationally engaged to each of the first and second connectors. The various embodiments of the invention include embodiments wherein the hollow member is deformed to engage the hollow member and connectors and embodiments wherein the first and second connectors are deformed to engage the hollow member and connectors. The deformational engagement mechanically attaches and sealingly engages the hollow member with each of the first and second connectors. The hollow member defines a passage through the apparatus from the first wall to the second wall of the housing. A method of manufacturing a brake booster is also disclosed.

Brake booster with deformationally sealed passage and method of manufacture

This braking force amplifier with dual amplification ratios includes a thrust assembly () comprising a reaction rod () connected to the master-cylinder of the corresponding brakes and mounted to be axially displaceable under the control of a plunger () between a first braking state corresponding to a first ratio of amplification of the braking force, and a second braking state corresponding to a second ratio of amplification of the braking force, and a deformable reaction disc () interposed between a piston () and the plunger on the one hand, and the reaction rod on the other. The thrust assembly includes means () for absorbing the deformations of the reaction disc, the said deformations contributing to determining the braking force for which passage between the first and the second braking states takes place.

Braking force amplifier with dual amplification ratios for motor vehicles

An apparatus and method for attaching a tube member to a housing of a vacuum brake booster is provided. A tube member includes a body portion, an outer surface, a first end, and a second end. A first collar portion is disposed between the first end and the body portion, and extends outward from the outer surface. A lip portion is disposed at the first end and extends outward from the outer surface. The first collar portion and the lip portion define a recess to receive a first housing member. The tube member may further include a second collar portion spaced apart from the first collar portion and extending outward from the outer surface. The second collar portion may preferably define a contact surface for contacting an inner surface of a second housing member.

Apparatus and method of attaching a tube member to a housing of a vacuum brake booster

A power booster comprises a housing, a tube, and a seal. The housing includes a front housing section, a rear housing section, and a divider. The tube is mechanically fastened proximate the rear housing section and generally stationary relative to the rear housing section, with the seal between the divider and the tube.

Power booster sealing mechanism

The present invention relates to a system and a process for assembling a tube in a connecting element, and a housing for a braking assistance servomotor, in a device for controlling braking including such a system. The system for assembling a tube ( ) with a female connecting element ( ) comprising a longitudinal bore ( ) provided with a transversal shoulder ( ), system in which a hollow end portion ( ) of the tube is inserted in the said bore in abutment against its shoulder, is characterized by the fact that the longitudinal wall of the said end portion comprises a zone ( ) deformed by compression between the said shoulder and the remainder of the tube and deformed transversally within the internal wall of the bore to provide mechanical connection and tightness between the tube and the connecting element.

System and process for assembling a tube in a connecting element, and servomotor housing including such a system

A connecting member and method of attaching the connecting member and a tube member to a housing of a vacuum brake booster is provided. The connecting member includes a cylindrical body portion having a first end and a second end. A rim portion is formed between the first end and the second end, and a stem portion is formed at the second end of the cylindrical body portion. The stem portion includes a tapered end portion to allow the stem portion to flow radially outward when a force is applied to the stem portion. The cylindrical body portion further includes a first opening formed in the cylindrical body portion adjacent to the first end of the cylindrical body portion and a second opening in communication with the first opening. The first opening has a first diameter and the second opening has a second diameter. The second diameter is less than the first diameter. The stem portion is deformed to create a seal between a portion of a housing member and the connecting member. A tube member includes a first end portion that is received in the first opening of the cylindrical body portion.

Apparatus and method of attaching a connecting member and a tube member to a housing of a vacuum brake booster

This brake booster comprises an enclosure ( ), a diaphragm ( ) dividing the enclosure into a front chamber ( ) connected to a source of vacuum and a rear chamber ( ), a piston ( ) that can move axially in the enclosure and on which the diaphragm is mounted, a plunger ( ) mounted so that it can move axially in the piston between a forward unstable braking position and a retreated stable position of rest, and a valve ( ) intended to collaborate with seats ( ) on the piston and on the plunger. The or each seat ( ) on the piston ( ) is formed on the edge of a passage ( ) allowing the said chambers ( ) to communicate.

Brake booster

A brake booster (,) comprising a housing (,); a diaphragm (,) mounted within the housing to define front and rear chambers (,) within the housing; and a cylindrical component (,) mounted within the housing and having an end (,) which passes through a sealing aperture (,) during installation within the housing to make a seal with the cylindrical component; wherein the cylindrical component has a plurality of fingers (,) extending away the said end, the fingers being circumferentially spaced apart around the end, and the outer surface (,) of each finger being chamfered such that the free ends (,) of each finger lie on a circle having an outer diameter (D,) which is less than the inner diameter (D,) of the sealing aperture prior to installation. Easier installation of the cylindrical component during booster assembly, especially where blind installation is required.

Booster with prefilling without limitation in flowrate

A power booster includes a housing with a rear housing section and a front housing section defining an internal cavity. A housing wall separates the internal cavity into a first chamber and a second chamber with an opening formed in the housing wall, wherein it is desirable to extend a component through the opening. A tube has an end secured in the opening in the housing wall. The tube's end includes a radially directed wall extending from the end of the tube that extends to an axially extending wall positioned concentrically with the tube and terminating with an outwardly turned segment. The axially extending wall is positioned within the opening in the housing wall with a seal positioned between the axially extending wall and the housing wall wherein the distance between the front housing section and the rear housing section is minimized, by extending the component through the tube.

A hydraulic valve having a housing with a piston located in a bore. The piston has a passage which connects an inlet chamber with an outlet chamber. A piston responds to a pressure differential between the inlet chamber and outlet chamber pressure and an outlet pressure by moving in the bore. A valve carried by the piston engages a needle to open communication through the passage and communicate fluid from the inlet chamber toward the outlet chamber. The needle extends from a core of an electromagnet, which responds to move the valve off a seat and open communication through the passage in opposition to a spring which urges the valve toward the seat and correspondingly control communication through the passage.

Pressure-modifying valve and electric bypass

Boosted braking device with reduced travel

Automatically controlled boosted braking system with monitored reserve

Boosted brake device with concealed travel and guaranteed gain

Growing community of inventors

Paris, France

Philippe Georges Castel