Mihai D Ralea from Boonton, NJ

Name / Title

Company / Classification

Phones & Addresses

Mihai Ralea
Owner, Principal

Advanced Systems Design
Business Services

7 Spruce Ct, Powerville, NJ 07005

Us Patents

Electromechanical Braking System With Power Distribution And Redundancy
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US Patent:

6402259, Jun 11, 2002
Filed:

Jul 14, 1999
Appl. No.:

09/357341
Inventors:

Lawrence F. Corio - Troy OH
Robert L. Brundrett - Troy OH
Mihai Ralea - Boonton NJ
Rollin W. Brown - Colchester VT
Assignee:

Goodrich Corporation - Charlotte NC
International Classification:

B60T 1514
US Classification:

303 20, 303 963, 244111, 701 71, 701 76
Abstract:

An electromechanical braking system utilizes redundancy features to provide safe and reliable braking. The braking system is configured to operate on power provided by multiple power sources. Different modes of braking are available based on whether a failure has occurred in one or more power sources. Additionally, system redundancy allows for failure in one or more primary components without total loss of braking capacity. Proportional braking is provided even in an emergency braking mode.

Aircraft Landing Gear With Integrated Brake Actuation System
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US Patent:

6581730, Jun 24, 2003
Filed:

Sep 12, 2000
Appl. No.:

09/659995
Inventors:

Thomas H. Haydon - Troy OH
Franklin C. Christ - Pompton Plains NJ
Mihai Ralea - Boonton Township NJ
Assignee:

Goodrich Corporation - Charlotte NC
International Classification:

F16D 5536
US Classification:

188 715, 188 18 A
Abstract:

An aircraft brake assembly, wherein the actuator portion of the brake assembly is no longer provided as part of the brake assembly but instead as part of the aircraft landing gear. Accordingly, the actuator portion or individual actuators assemblies are designated as Line Replacement Units (LRUs), which are replaceable independently of other brake components, e. g. , the torque tube and heat sink, which then comprise the brake assembly designated as a separate LRU. This new arrangement is particularly suited to electro-mechanically actuated brakes, where actuator maintenance intervals will typically be more closely related to landing gear maintenance intervals than to brake maintenance (i. e. , hydraulic actuator and/or heat sink maintenance). The invention also provides for more effective and desirable mounting of one or more electro-mechanical actuators wherein reactionary loads are transferred in compression as opposed to in tension through mounting bolts or other removable fasteners.

Low Power Parking Brake Force Adjustment Apparatus And Method For Electrically Actuated Brake Systems
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US Patent:

6959794, Nov 1, 2005
Filed:

May 30, 2003
Appl. No.:

10/449199
Inventors:

Mihai Ralea - Boonton Township NJ, US
Eric Daniel Cahill - Troy OH, US
Assignee:

Goodrich Corporation - Charlotte NC
International Classification:

B60T007/10
US Classification:

188156, 188158, 188 111 L, 188 718, 188196 R, 303 20
Abstract:

A parking brake monitor and adjustment control system controls parking brake operation of an electromechanically actuated brake system which applies a parking brake force to a wheel. The system includes a monitor circuit for producing an output signal which intermittently causes the brake system to readjust the parking brake force applied to the wheel.

Controller For Electromechanical Braking System With Running Clearance Adjustment And Method
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US Patent:

8177308, May 15, 2012
Filed:

Nov 15, 2006
Appl. No.:

12/092182
Inventors:

Mihai Ralea - Boonton Township NJ, US
Assignee:

Goodrich Corporation - Charlotte NC
International Classification:

B60T 13/74
F16D 66/02
US Classification:

303 20, 188 111 L, 188 718
Abstract:

A system and method for establishing a running clearance position for an electromechanical actuator (), wherein the running clearance is based on an actuator ram () position attained during a force application to a brake stack (). In particular, a running clearance calibrator () determines a position value corresponding to a position of the force applicator when retraction from an application of force on the brake stack commences. The running clearance calibrator also generates a running clearance position as a function of the position value.

Electronic Aircraft Braking System With Brake Wear Measurement, Running Clearance Adjustment And Plural Electric Motor-Actuator Ram Assemblies
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US Patent:

20030029680, Feb 13, 2003
Filed:

Oct 10, 2002
Appl. No.:

10/268409
Inventors:

Mihai Ralea - Boonton Township NJ, US
Franklin Christ - Pompton Plains NJ, US
International Classification:

F16D055/36
B60T008/18
US Classification:

188/071500, 188/195000
Abstract:

An electrically actuated aircraft brake system and method which provides for brake wear measurement, brake running clearance adjustment, ram position-based control and improved construction and operation. Brake wear and running clearance measurement are obtained by analyzing the output of position sensing circuitry. The position sensing circuitry, preferably including a LVDT position sensor, is also used to determine braking load, a brake controller including circuitry for effecting displacement of one or more reciprocating rams to load a brake disk stack by a predetermined amount based on a present displacement value of the position signal obtained from the position sensor. The position sensor preferably includes a LVDT transducer connected between the reciprocating ram and a brake housing, and the motive device preferably includes a servo motor. Also provided is an actuator housing including a guideway for each ram, the guideway and ram having the same polygonal cross-section, whereby the ram nut is guided and restrained from rotation by the guideway as it is translated by a ball screw in threaded engagement with the ram nut for selective movement into and out of forceful engagement with the brake disk stack for applying and releasing braking force on a rotatable wheel. An electric motor is drivingly connected to each ball screw by a first gear integral with the ball screw, a second gear in mesh with the first gear, and a pinion on a rotating drive shaft of the electric motor.

System For Decreasing The Speed Of A Moving Craft
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US Patent:

20030178530, Sep 25, 2003
Filed:

Jan 30, 2003
Appl. No.:

10/354339
Inventors:

Peter Tartaglia - Butler NJ, US
Mihai Ralea - Boonton Township NJ, US
Assignee:

Marotta Scientific Controls, Inc. - Montville NJ
International Classification:

B64F001/02
US Classification:

244/11000R
Abstract:

A speed reduction system for decreasing the speed of a moving craft has a craft engaging device, a control mechanism, and a hydraulic energy transfer system adapted to transmit energy from the craft engaging device to the control mechanism. The control mechanism is adapted to actively control release of energy from the hydraulic energy transfer system during the decrease of the speed of the craft. A method of controlling the operation of a valve includes adjusting the valve during the operation of the valve after comparing a condition to a desired condition determined by a profile. A hydraulic valve has a valve member defining passages arranged to balance the force of the fluid pressure acting on the valve member and an actuator connected to the valve member. A valve control system includes a controller and a driver arranged with the controller. The position of the valve is adjusted during a predetermined cycle to control the operation of the valve.

Aircraft Landing Gear With Integrated Brake Actuation System
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US Patent:

20030213657, Nov 20, 2003
Filed:

Jun 10, 2003
Appl. No.:

10/457996
Inventors:

Thomas Haydon - Troy OH, US
Franklin Christ - Pompton Plains NJ, US
Mihai Ralea - Boonton Township NJ, US
International Classification:

F16D055/36
US Classification:

188/071500
Abstract:

An aircraft brake assembly, wherein the actuator portion of the brake assembly is no longer provided as part of the brake assembly but instead as part of the aircraft landing gear. Accordingly, the actuator portion or individual actuators assemblies are designated as Line Replacement Units (LRUs), which are replaceable independently of other brake components, e.g., the torque tube and heat sink, which then comprise the brake assembly designated as a separate LRU. This new arrangement is particularly suited to electro-mechanically actuated brakes, where actuator maintenance intervals will typically be more closely related to landing gear maintenance intervals than to brake maintenance (i.e., hydraulic actuator and/or heat sink maintenance). The invention also provides for more effective and desirable mounting of one or more electromechanical actuators wherein reactionary loads are transferred in compression as opposed to in tension through mounting bolts or other removable fasteners.

Method And System For Controlling The Operation Of A Valve
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US Patent:

20050151011, Jul 14, 2005
Filed:

Apr 16, 2004
Appl. No.:

10/826545
Inventors:

Peter Tartaglia - Butler NJ, US
Mihai Ralea - Boonton Township NJ, US
Assignee:

Marotta Controls, Inc. - Montville NJ
International Classification:

B64C025/00
US Classification:

24411000A
Abstract:

A speed reduction system for decreasing the speed of a moving craft has a craft engaging device, a control mechanism, and a hydraulic energy transfer system adapted to transmit energy from the craft engaging device to the control mechanism. The control mechanism is adapted to actively control release of energy from the hydraulic energy transfer system during the decrease of the speed of the craft. A method of controlling the operation of a valve includes adjusting the valve during the operation of the valve after comparing a condition to a desired condition determined by a profile. A hydraulic valve has a valve member defining passages arranged to balance the force of the fluid pressure acting on the valve member and an actuator connected to the valve member. A valve control system includes a controller and a driver arranged with the controller. The position of the valve is adjusted during a predetermined cycle to control the operation of the valve.