Class / Patent application number | Description | Number of patent applications / Date published |
073039000 | Fluid pressure brake system or unit | 12 |
20080276691 | Single Car Test Interface Device - A single car test device includes a housing; a source port, on the housing, to be connected to a source of pressurized air; a brake pipe port, on the housing, to be connected to the brake pipe connector; and valves, in the housing, selectively interconnecting the ports to each other and atmosphere to perform tests. A brake cylinder sensor is to be connected to a brake cylinder tap. A sensor module on an interface device, remote from the housing, is to be mounted on the test ports on a control valve for determining pressure at the test ports. A controller is connected to the valves, the sensor module and the brake cylinder sensor and includes a program performing a plurality of component tests which form a single car test. The interface device includes reservoir charging valves controlled by the controller. | 11-13-2008 |
20090211339 | SINGLE CAR TEST INTERFACE DEVICE - A single car test device includes a housing; a source port, on the housing, to be connected to a source of pressurized air; a brake pipe port, on the housing, to be connected to the brake pipe connector; and valves, in the housing, selectively interconnecting the ports to each other and atmosphere to perform tests. A brake cylinder sensor is to be connected to a brake cylinder tap. A sensor module on an interface device, remote from the housing, is to be mounted on the test ports on a control valve for determining pressure at the test ports. A controller is connected to the valves, the sensor module and the brake cylinder sensor and includes a program performing a plurality of component tests which form a single car test. The interface device includes reservoir charging valves controlled by the controller. | 08-27-2009 |
20110179853 | Portable control device for wireless communication with air brake line airflow manipulating device - An apparatus in one example comprises an airflow manipulating device, a portable control device, and an air pressure sensor. The airflow manipulating device is disposed between a source of compressed air and an air brake line of a train consist. The portable control device is in wireless communication with the airflow manipulating device. The portable control device is transportable by a user along the train consist during inspection of the air brake line. The portable control device is adapted to transmit a control signal over a wireless communication channel to move a valve in the airflow manipulating device to a position that causes an increase or decrease of air pressure in the air brake line. The air pressure sensor measures an air pressure level in the air brake line for wireless transmission to the portable control device. | 07-28-2011 |
20110232370 | TEST PORT ADAPTER FOR EP OVERLAY - A test port adapter plate is used with an electropneumatic overlay access plate, which is incorporated to the single-sided pipe bracket in an overlay system, to provide enough space for a test connector to be connected. | 09-29-2011 |
20110239741 | DEVICE AND METHOD FOR DETERMINING THE OSCILLATORY BEHAVIOR OF A BRAKE LINING IN THE FIELD OF MOTOR VEHICLES | 10-06-2011 |
20130047705 | SYSTEM AND METHOD FOR TESTING A RAIL CAR BRAKE SYSTEM - A system for testing a rail car brake system includes a valve manifold having valves that selectively supply and vent test air to or from the brake system. A control circuit is operatively connected with the valve manifold and configured to operate in a first mode to automatically position the valves according to a prescribed test and to operate in a second mode to allow manual positioning of the valves. A method for testing a rail car brake system includes connecting test air to a valve manifold, connecting the valve manifold to the brake system, and testing the brake system using a control circuit configured to automatically position valves in the valve manifold according to a prescribed test. The method further detects a failed test result in the brake system and troubleshoots the brake system using the control circuit to manually position valves in the valve manifold. | 02-28-2013 |
20130174647 | Brake Test Bench Having an Electrical Brake Actuator and Method for Same - A test bench for testing a brake comprises a pressure generating assembly for providing a brake fluid with an increased hydraulic pressure, a test bench control, and an electromechanical brake actuator. The pressure generating assembly is actuated mechanically and the brake fluid is supplied to the brake to actuate the brake. The electromechanical brake actuator, which simulates a vehicle driver's braking foot, is provided for mechanical actuation of the pressure generating assembly. The brake actuator comprises an electric motor activated by the test bench control and a planetary roller screw drive driven by the electric motor. The planetary roller screw drive is mechanically coupled to the pressure generating assembly to mechanically actuate the pressure generating assembly. | 07-11-2013 |
20130192345 | DEVICE FOR CARRYING OUT TESTS ON AT LEAST ONE FLUID CIRCUIT OF AN AIRCRAFT - A device for carrying out a test on a fluid circuit of an aircraft including a test unit which includes, at the inlet, at least one means of connection to a pressurized gas supply connected to means for regulating the pressure of the gas provided by the supply as a function of the test to be carried out and, at the outlet, at least two connection means connected to the means for regulating the pressure of the gas, wherein at least two connection means have different dimensions tailored to a range of pressures or a given pressure. | 08-01-2013 |
20140076031 | PORTABLE CONTROL DEVICE FOR WIRELESS COMMUNICATION WITH AIR BRAKE LINE AIRFLOW MANIPULATING DEVICE - An apparatus in one example comprises an airflow manipulating device, a portable control device, and an air pressure sensor. The airflow manipulating device is disposed between a source of compressed air and an air brake line of a train consist. The portable control device is in wireless communication with the airflow manipulating device. The portable control device is transportable by a user along the train consist during inspection of the air brake line. The portable control device is adapted to transmit a control signal over a wireless communication channel to move a valve in the airflow manipulating device to a position that causes an increase or decrease of air pressure in the air brake line. The air pressure sensor measures an air pressure level in the air brake line for wireless transmission to the portable control device. | 03-20-2014 |
20150329095 | METHOD FOR ESTIMATING THE PRESSURE IN A VACUUM RESERVOIR OF A BRAKE SERVO - A method for estimating pressure in a vacuum reservoir of a vacuum brake servo of a motor vehicle, the vehicle including: a braking device operated by pressure of a brake fluid; a brake servo amplifying force of an actuating member using a vacuum supplied by a reservoir; a pressure sensor configured to measure the braking pressure of the brake fluid; the method includes: calculating the braking pressure; calculating amplitude of a reduction in braking pressure; estimating increase of the pressure in the vacuum reservoir as a function of the amplitude. | 11-19-2015 |
20160059839 | METHOD FOR DETECTING FLUID LEAKAGE - A method for detecting fluid leakage from a pressure-decrease valve in a hydraulic brake system having an ABS device including: a shutoff valve for shutting off supply of a working fluid from a fluid-pressure supply source to a brake device provided for a wheel; the pressure-decrease valve for discharging the working fluid from the brake device; a reservoir for storing the working fluid discharged from the pressure-decrease valve; and a return pump for returning the working fluid stored in the reservoir to a portion between the shutoff valve and the fluid-pressure supply source, the method including the steps of: activating the return pump in a state in which the hydraulic brake system is not in ABS operation, and detecting the fluid leakage from the pressure-decrease valve based on a variation in a pressure of the working fluid in the fluid-pressure supply source caused when the return pump is activated. | 03-03-2016 |
20160178474 | PRESSURE MEASUREMENT DEVICE AND BRAKING SYSTEM COMPRISING SUCH PRESSURE MEASUREMENT DEVICE | 06-23-2016 |