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Class 91/367 - Plural input signal means for single motor valve (453)


Subclass of Class 91 - Motors: expansible chamber type
Definition: Apparatus in which there are a plurality of separate means
No. of patents: 86
Last issue date: 05/31/2011


1      
NumberTitleIssue Date
7950320Brake booster for motor vehicles
Disclosed is a brake booster for motor vehicles, the control valve (12) of which is operable, irrespective of an actuating rod (7) that displaces a valve piston (9), via an electromagnet (20), which actuates a third sealing seat (24
05/31/2011
7357466Braking force generator for a hydraulic vehicle brake system
In a brake force generator for a vehicle hydraulic brake system having a force input element, which is connectable or connected to a brake pedal and displaceable in a base housing of the brake force generator, a master cylinder, in which a primary piston is displace...
04/15/2008
7350622Powdered graphite applicator
The powdered graphite applicator includes a container with a lid at the upper end and a screen at the lower end. A plate is provided inside the container to define the bottom of the graphite chamber. The plate has an enlarged opening which is normally closed by a ga...
04/01/2008
7347510Braking force generator for a hydraulic vehicle braking system
In a brake force generator (10) for a vehicle hydraulic brake system having a force input element (14), which is connectable or connected to a brake pedal (P) and displaceable in a base housing of the brake force generator (10), a master cylinde...
03/25/2008
7267040Booster 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 chamber and a variable-pressure chamber and a three-way valve arrangement t...
09/11/2007
7267412Method for determining or calibrating the brake control characteristic of a vacuum brake booster
In a method for determining or calibrating the brake control characteristic of a vacuum brake booster of a vehicle brake system, the pressure in the working chamber or the pressure difference between the working chamber and the vacuum chamber of the vacuum brake boo...
09/11/2007
7247805Switch actuation method and mechanism
A mechanism is provided for actuating a switch that transmits motion from a first component, which moves along a first path, to a system that is attached to the mechanism. The mechanism includes a second component that moves transverse to the first path and a third ...
07/24/2007
7188517System and method for detection of degradation of vacuum brake booster sensor
Systems and methods for detecting degradation of a sensor in a vacuum brake booster coupled to a manifold of an internal combustion engine include measuring an engine or vehicle operating parameter to detect operating or control conditions and detecting degradation ...
03/13/2007
7137082Reduced architecture processing paths
A basic Boolean circuit is a transistor circuit commonly used in industry to produce the logic of a particular Boolean gate. A sequence of standard Boolean circuits disposed along the processing path of an integrated circuit define a predetermined truth table repres...
11/14/2006
7124998Electromagnetically actuated gas valve
An electromagnetically actuated gas valve (5) for gas engines (4) includes a valve seat (13) that has at least one flow-through opening (14) and a corresponding sealing plate (15), with the sealing plate being movably arranged and ...
10/24/2006
7080588Negative pressure type booster
A negative pressure type booster includes a power piston, a slide valve, and a holding mechanism, among others, and assists a driver during emergency braking. The holding mechanism is adapted to hold the slide valve at a predetermined frontward position, and include...
07/25/2006
7040717Negative 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 and open an atmospheric valve 16 and a power p...
05/09/2006
7040718Calibration process for a servomotor
A calibration process for a pneumatic-assistance servomotor in a braking circuit of a motor vehicle. The values of the output pressure (Pmc) of a hydraulic master cylinder associated with the servomotor and of the negative pressure inside the working chamber of the ...
05/09/2006
7014276Vacuum booster
A vacuum booster which moderates a retraction speed of a valve seat member to restrain a contact noise between a key member retracting in a unitary manner with the valve seat member and a flange surface of a plunger. The vacuum booster includes a noise restriction d...
03/21/2006
6981438Hydraulic brake booster
A hydraulic brake booster has an actuator arrangement for a control valve that includes a ball that is located in a first sleeve retained in a stepped bore of a cylindrical member and a pin that is retained in the cylindrical member. The pin has a first end that is ...
01/03/2006
6923405Enhanced rudder control system
A reliably redundant PCU for an aircraft. The PCU includes an override mechanism coupled to the aircraft's control path and a first control member coupled to the override mechanism whereby the override mechanism attempts to transmit a command from the command path t...
08/02/2005
6920818Dual 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 connection design that provides direct alignment between the primary piston...
07/26/2005
6748846Solenoid valve, vacuum booster diaphragm subassembly, and vacuum booster assembly
A solenoid valve includes a valve housing having first, second, and third valve ports, an actuation rod, a first tip valve actuated by the first end of the actuation rod to allow or block fluid passage through the first valve port, and a second tip valve actuated by...
06/15/2004
6748847Brake booster
A brake booster 1 includes a valve mechanism 6, and a solenoid 8 which operates the valve mechanism 6. When the solenoid 8 is energized, a solenoid plunger 26 and a valve seat member 11 move rearward relative to a val...
06/15/2004
6705200Vacuum brake booster with mechanical emergency braking assistance
A vacuum brake booster (1) has a vacuum chamber (4) and a working chamber (3), which are separated from one another in a pressure-proof manner by a movable wall (5). A control valve (6), which has a housing (7) workingly cou...
03/16/2004
6681680Vacuum brake booster with mechanical emergency braking aid
A vacuum brake booster (10) is described, comprising a vacuum chamber (16) and a working chamber (18) separated from each other by a movable wall (14). The vacuum brake booster (10) includes an emergency braking aid comprising a permanent magnet (38), whi...
01/27/2004
6672198Vacuum brake booster with mechanical emergency braking aid
A vacuum brake booster (10) is described, having a vacuum chamber (16) and a working chamber (18) separated from one another by a movable wall (14), and a control valve (20), which comprises a housing (12) coupled workingly to the movable wall (14) and wh...
01/06/2004
6672197Automatic brake booster
An automatic brake booster includes a solenoid and a solenoid plunger which allow a flow path in a valve mechanism to be switched without depression of a brake pedal. The solenoid plunger comprises a rear member on which an atmosphere valve seat is formed...
01/06/2004
6634724Electrically driven brake booster
An electrically driven brake booster (1) includes an input member (4) disposed in operative association with a brake pedal (12), an output member (5) disposed in operative association with the master cylinder (6), and drive transmitting device (10) for tr...
10/21/2003
6634275Automatic brake booster
An automatic brake booster 1 includes a solenoid 8 which causes a back- and forth movement of a solenoid plunger 31 to switch a valve mechanism 6. A second vacuum valve seat member 11 including a second vacuum valve seat 12 which is juxtaposed with a firs...
10/21/2003
6609453Controller of vacuum brake power booster
A controller of a vacuum brake power booster which amplifies an input force of a brake pedal and outputs the amplified force to a brake device, is characterized by comprising a control signal generating means generating a plurality of kinds of signals for...
08/26/2003
6568182Electronically controllable brake booster
Electronically controllable brake booster with a vacuum chamber and a pressure chamber, which are separated from one another by a moveable wall, a control valve arrangement, which can be actuated by means of an electromagnetic actuating device and via whi...
05/27/2003
6520063Vacuum brake booster with mechanical emergency braking assistance and improved noise damping
A vacuum brake booster (10) has a vacuum chamber (18) and a working chamber (20), which are separated in a pressure-proof manner from one another by a movable wall (16). A control valve (22) having a housing (24), which is workingly coupled to the movable...
02/18/2003
6516702Brake booster
A servobrake having a rigid jacket defined by a first shell joined to a second shell by through tie-bars to create variable volume front and rear chambers. The front chamber is permanently connected to a first pressure source whereas the rear chamber is s...
02/11/2003
6516701Brake power booster and a method for controlling the same
The present invention relates to a brake force booster for automotive vehicles which includes a booster housing whose interior space is subdivided by a movable wall into a working chamber and a vacuum chamber, and a control housing which carries the movab...
02/11/2003
6505539Vacuum brake booster with mechanical emergency braking assistance
A vacuum brake booster (10) has a vacuum chamber (18) and a working chamber (20) separated from one another in a pressure-proof manner by a movable wall (16). A control valve (22), which comprises a housing (24) workingly coupled to the movable wall (16),...
01/14/2003
6491356Brake system
The invention relates to a brake system including a brake booster. A pneumatic pressure operated brake booster VBB or a liquid pressure operated brake booster includes a valve mechanism which is urged by a force of depression applied to a brake pedal BP t...
12/10/2002
6425312Brake booster
The present invention provides a brake booster that, although simple in construction, capable of adjusting the braking force derived by operation of a solenoid mechanism without worsening the braking response. In the brake booster according to the present...
07/30/2002
6422123Electronically controllable brake booster
In an electronically controllable brake booster a value is sensed which is characteristic for the actual pressure characteristic in the pressure chamber. The actual pressure characteristic is checked for the existence of periodic oscillation components of...
07/23/2002
6422122Electronically controllable brake booster
The invention utilizes the finding that a pressure variation or pressure difference between two chambers of a brake booster is a parameter of considerable influence on the behavior of a brake booster control valve arrangement in the operation of the brake...
07/23/2002
6386087Control booster
The present invention provides a control booster which is capable of appropriately detecting a pedal-operated brake operation during an automatic brake operation. For moving a stop key from a position on a side of a rear-side abutment surface (where a rea...
05/14/2002
6374721Vacuum booster with retaining mechanism for cylinder cap
A brake vacuum booster assembly is provided that includes a power piston with a two-piece member movable relative thereto for opening a valve when a brake pedal is applied. The two-piece member includes a cylinder and a cylinder cap. The cylinder has a pa...
04/23/2002
6347570Automatic brake booster
A valve mechanism of an automatic brake booster comprises a vacuum valve seat formed on a valve body to face forward, an atmosphere valve seat formed on the rear portion of a valve plunger, and a valve element adapted to be seated on the both valve seats ...
02/19/2002
6345565Vacuum servo unit for vehicle brake systems
A vacuum servo booster 10 for vehicle brake systems includes a housing 14, movable walls 17 and 20, a power piston 22, an input member 28, an input rod connected to a brake pedal 80, a valve mechanism 34, an output rod 49, and an actuator 41. In the vacuu...
02/12/2002
6334383Vacuum servo apparatus
A vacuum servo apparatus capable of regulating the output accompanying the activation of an actuator to the maximum output or less includes a housing, movable walls located within the housing, a power piston, an input member, a valve mechanism, an output ...
01/01/2002
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