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7472968 Vacuum type brake booster  
In a vacuum type brake booster, the reaction of output transmitted from an output shaft to a reaction member is transmitted to a valve body, a plunger, and a stepped pin. A valve mechanism, which...
7448308 Vacuum type booster device  
A valve piston 8 of a vacuum type booster device is provided with a bypass passage 51 which is defined between a sound-absorbing member 27 and an input rod 23 to communicate directly with...
7370571 Negative pressure type booster device  
In a negative pressure type booster device, secondary passages 53 communicating directly with the atmosphere is formed between the internal surface of a sliding cylindrical portion 8 b of a...
7334512 Vacuum type booster device  
In a vacuum type booster device, when the advance of an input member causes an atmosphere valve seat to be separated from an atmosphere valve to advance a power piston, the position of a vacuum...
7322269 Housing module for a brake booster  
The present device relates to a housing module 1 for a brake booster. The housing module has a housing shell 3 that accommodates a movable wall 4 . The movable wall subdivides an interior...
7318370 Tie rod for booster and booster comprising such a tie rod  
A tie rod ( 40 ) for mounting a booster and the brake control master cylinder on a bulkhead ( 3 ) of the vehicle engine compartment. The tie rod ( 4 ) comprises, at each of its ends, a shoulder (...
7302882 Jump force vacuum booster  
The invention provides a method and apparatus wherein the apparatus includes a housing having a first end and a second end. The housing also includes a first aperture and a second aperture. The...
7267040 Booster with reduced dead travel and a braking system comprising such a booster  
A pneumatic brake booster with short actuating travel, comprising a skirt and a pneumatic piston that are rigidly connected and slideably mounted in a sealed casing to delimit a low-pressure...
7255036 Pneumatic servomotor comprising a diaphragm and/or a joint which is overmoulded onto the skirt  
A pneumatic servomotor ( 12 ) for an assisted braking having a rigid axial casing ( 16 ) with a movable substantially truncated-cone shaped transverse skirt ( 18 ) that is integral with a piston (...
7240602 Brake control device  
A device comprised a master cylinder driven by a control member ( 20 ), a pneumatic booster ( 14 ), a piston ( 22 ), first (VE 1 ) and second (VE 2 ) balancing valve elements, first (VA 1 ) and...
7234384 Pneumatic booster with shifted valve seats  
A pneumatic brake booster ( 10 ) for a motor vehicle comprising a casing ( 12 ) within a moving partition ( 14 ) is secured to a moving piston ( 12 ) having an inlet valve ( 52 ) and a...
7216577 Vacuum booster with low force loss  
A vacuum booster includes a housing defining a control volume in which a movable diaphragm separates the control volume into an apply chamber and a vacuum chamber. A power piston extends through...
7213499 Spacer for a boost unit  
A spacer secured to a dash panel offsets a boost unit of a brake system into an engine compartment. The spacer has a cylindrical body with a u-shaped space through which air from the engine...
7201456 Pneumatic brake booster  
A pneumatic brake booster for a motor vehicle, comprising a piston ( 22 ) mounted between a control rod ( 24 ) actuated by a brake pedal and a push rod ( 34 ) actuating a piston of a brake master...
7194946 Pneumatic servomotor for power-assisted braking, the servomotor having a crimped diaphragm  
A pneumatic servomotor ( 12 ) for power-assisted braking for a motor vehicle, which servomotor is of the type having a substantially cylindrical rigid casing ( 16 ) inside which a moving transverse...
7134377 Vacuum brake booster  
A vacuum brake booster having a vacuum chamber and a working chamber, which are separated from one another by a movable wall, and a control valve is described. The control valve has a control valve...
7104179 Braking device, and method of manufacture  
A braking device and a method of manufacture of such a braking device. The braking device has a booster ( 1 ) formed of a cover ( 12 ) and of a cylinder ( 10 ). A central orifice ( 8 ) is formed on...
7086320 Brake booster with emergency brake assist function  
A brake booster, in particular for motor vehicles, having a control valve for controlling the boosting force generated by the brake booster. The control valve comprises a control valve housing, an...
7082870 Arrangement for the bayonet-fixing and locking of a brake booster  
An arrangement ( 10 ) for the fixing of an axially oriented (A) brake booster ( 12 ) on a dashboard ( 14 ) of an automobile wherein a rear face ( 16 ) of the booster ( 12 ) is fixed on a front face...
7082869 Sensor arrangement for a vacuum brake booster and a vacuum brake booster provided with this sensor arrangement  
The invention relates to a sensor arrangement ( 10 ) for a vacuum brake booster with a brake booster housing comprising at least one vacuum chamber and at least one working chamber that is...
7077051 Self-boosting pneumatic booster using a pivoting key  
A pneumatic booster operated by a plunger ( 9 ) housed in a bore ( 61 ) and bearing on a moving seat ( 102 ) which co-operates selectively with a shut-off member ( 111 ). The shut-off member ( 111...
7066073 Vacuum brake booster for motor vehicles  
In order to minimize the vacuum-dependent force component acting upon the valve body of a vacuum brake booster that is equipped with a pneumatically pressure-compensated control valve without...
7063002 Negative pressure type booster  
In a negative pressure type booster, an atmospheric valve seat is formed on an annular disk of an input member, which disk extends radially outward. The annular disk and an annular diaphragm...
7063001 Brake servo-unit comprising a floating element bearing offset valve seats  
A pneumatic servomotor for power-assisted braking for a motor vehicle having a control rod ( 38 ) for opening and closing at least one axial inlet valve ( 52 ) that is interposed between a front...
7040717 Negative pressure boosting device  
In a negative pressure boosting device of the present invention, upon depression of a pedal at a normal speed, an input shaft 11 and a valve plunger 10 move forward to close a vacuum valve 15 ...
7040217 Tie rod for a brake booster  
A first and second tie rods locating between a front shell and a rear shell of a brake booster through which a master cylinder is connected to a support member. Each of the first and second tie...
7032498 Vacuum brake booster  
A braking amplifier for a vehicle having a vacuum chamber ( 10 ), a working chamber ( 12 ) separated by a housing ( 14 ), a shutter ( 30 ) and an intermediate chamber ( 64 ). The intermediate...
7021724 Vacuum booster  
In a vacuum booster in which a reaction force mechanism is interposed between an input rod and a valve cylinder connected integrally with a booster piston, and an output rod, a valve piston is...
7004059 Hydraulic master cylinder switch  
A switch adapted to be positioned on the pushrod of a hydraulic cylinder assembly and including a housing adapted to be positioned against an end of the hydraulic cylinder assembly and including a...
6959637 Vacuum brake booster  
A control valve for a brake booster having a first member with a first bore, a second member located in the first bore and having a second bore, a plunger located in the second bore and connected...
6955044 Reaction arrangement for brake booster  
A reaction arrangement for a brake booster having a control valve selectively activated by a manual input force or an electromagnetic force to allow air to create a pressure differential with...
6948416 Method for determining a brake booster amplification  
The invention relates to a process and a device for determining the instantaneous value of the amplification provided by a pneumatic-assistance servomotor ( 14 ) in a braking device for a motor...
6928918 Pneumatic brake booster comprising improved sealing means  
A pneumatic brake booster comprising an envelope of longitudinal axis formed of a dish having a rim and a lid. The envelope defines an interior volume that is divided into a variable-pressure work...
6928917 Control valve  
A valve arrangement for controlling the flow of pressurized fluid between a working chamber and an outlet chamber that passes between a seal and a seat surrounding an orifice to the outlet chamber....
6920818 Dual tandem power piston-attachment concept  
A vehicle braking system vacuum booster tandem power piston connection design such that the primary piston and the secondary piston are positioned together forming the tandem power piston. A...
6918249 Pneumatic brake booster for use in a brake system  
A brake booster comprising an envelope ( 2 ) having a longitudinal axis (X) formed of a first ( 4 ) and of a second ( 6 ) shell to define an interior volume divided by moving a skirt into a...
6912946 System and method for improved controlled airflow within a vacuum booster system  
The present invention includes a system for providing an improved controlled airflow within a vacuum booster system. The system includes a vacuum booster assembly having a primary chamber and a...
6907731 Master cylinder apparatus  
A master cylinder apparatus is provided with a master cylinder and a booster. The booster comprises a booster shell whose interior is divided into a variable and constant pressure chambers. The...
6899011 Pneumatic booster comprising tubular intake and equalizing valves  
A pneumatic brake booster for a motor vehicle, of the type in which the movements of a control rod ( 38 ) are able to determine the openings and closings of at least one axial intake valve ( 52 )...
6883415 Brake booster device  
A brake booster device for use in a brake system of vehicles is provided with a partition member dividing the interior of the booster shell into front and rear chambers and a piston movable bodily...
6871493 Braking device for a motor vehicle, comprising a vacuum pump  
A braking device, particularly for a motor vehicle, comprising a master cylinder ( 10 ) associated with a pneumatic booster ( 12 ), and a vacuum pump ( 36 ) to create a vacuum in the vacuum chamber...
6848352 Pneumatic brake booster with reduced noise levels  
A pneumatic brake booster comprising an envelope formed of two shells ( 3, 5 ) defining an interior volume divided into two chambers by a skirt mounted so that it can slide with sealing. The skirt...
6843163 Booster using a seal that also serves to set the position  
A pneumatic brake booster comprising a rigid casing ( 10 ) locally shaped into a hollow shaft ( 3 ), a hub ( 5 ) slideably mounted in an opening ( 30 ) of the hollow shaft ( 3 ), an annular seal (...
6843160 Negative pressure brake booster  
A tubular member 18 is slidably fitted into a valve body, and is formed with a vacuum valve seat 21 . The tubular member 18 , a valve plunger 16 and the valve body 3 are maintained in their...
6829976 Diaphragm for a brake booster  
A brake booster ( 10 ) having a housing defined by joining a substantially circular first shell ( 12 ) to a second shell ( 14 ) to compress a first bead ( 100,200 ) on a diaphragm ( 102,202 )...
6826999 Pneumatic booster  
A pneumatic brake booster for a motor vehicle wherein movements of a control rod ( 38 ) determine the openings and closings of at least one axial intake valve ( 52 ) and at least one equalizing...
6805037 Brake booster sensor  
The present invention provides a single sensor, preferably of a capacitance type, that detects various conditions of a brake booster and the braking system. In one embodiment, the sensor is...
6772674 Tie rod apparatus and method for assembling a vacuum booster  
An apparatus and method are provided for adjusting the axial distance between the front and rear walls of a vacuum booster, from outside of the booster, after the booster has been assembled. The...
6725760 Brake booster  
A brake booster ( 12 ) having a housing ( 18 ) with an interior separated into a front chamber ( 26 ) and a rear chamber ( 28 ) by a wall ( 30 ) retained on a peripheral surface ( 106 ) of a...
6711983 Vacuum brake booster with improved magnet-free emergency brake assistance system  
A vacuum brake booster comprises a vacuum chamber and a working chamber which is separated in a pressure-tight manner from the latter by a mobile wall. In order to obtain a pressure difference at...