Class / Patent application number | Description | Number of patent applications / Date published |
126604000 | Having fluid power | 13 |
20090107486 | SOLAR PANEL WITH A COOLANT VAPOR PRESSURE DRIVING SYSTEM - Coolant vapor pressure is used to generate a push force to adjust the azimuth angle of a solar panel without using a dedicated power supply. | 04-30-2009 |
20090235921 | HYDRAULIC CONTROL DEVICE - A hydraulic control device for moving at least one hydraulic consumer comprises at least one supply line, a discharge line or bypass line to which the hydraulic consumer is connected, and at least one pressure source and, optionally, a directional control valve. The line contains a dosing device for measuring a hydraulic medium dose by using a given compressibility of the hydraulic medium. The measured hydraulic medium dose either is supplied from the dosing device into the hydraulic consumer connected downstream or is discharged from the hydraulic consumer connected upstream into the dosing device. The dosing device comprises from upstream to downstream in series first and second blocking members which respectively can be switched into a leakage-free blocking position and into a through flow position, and a dead space between the blocking members. For dosing the hydraulic medium dose the blocking members are switched several times alternatingly. | 09-24-2009 |
20100139647 | DUAL AXLE SOLAR TRACKER - Solar tracker with a principal substructure comprising a series of posts between which sections of beams are arranged, joined by intermediate axles and which can turn in respect of a longitudinal axle; it is also provided with secondary substructures comprising a frame for attachment of the solar panels which rotate in respect of an axle transversal to the longitudinal and with connection parts between the frames and the beams, and in respect of which they are articulated, with the frames being activated by connecting rods joined to a common slide. The centre of gravity of the structure overall is arranged such that it is very close to the longitudinal axle, which facilitates its actuation, reduces wind sensitivity and facilitates erection in addition to being provided with a certain degree of longitudinal tolerance, which enables better use to be made of land, as it is possible to achieve greater power per square metre. | 06-10-2010 |
20100252027 | Low-cost heliostatic mirror with protective inflation stabilizable surface element means - Increased utilization of solar power is highly desirable as solar power is a readily available renewable resource with power potential far exceeding total global needs; and as solar power does not contribute to environmentally harmful pollutants associated with fossil fuel power, such as unburned hydrocarbons, NOx and carbon dioxide. The present invention is motivated by the fact that heliostats are the single biggest cost element for utility-scale central receiver solar thermal powerplants. This invention provides a low-cost heliostatic mirror with protective inflation stabilizable surface element means for providing adverse weather performance & survival, where the inflation stabilizable surface element means include inflation stabilizable near-spherical surface element means and may include inflation stabilizable near-cylindrical surface element means. | 10-07-2010 |
20100300429 | ACTUATOR-BASED DRIVE SYSTEM FOR SOLAR COLLECTOR - A system for controlling the rotational position of a solar collector trough includes a hydraulic cylinder having an output end and a linkage assembly. The linkage assembly includes at least one linkage member and a pair of pivot arms attached to the at least one linkage member. The pair of pivot arms is defined by a first pivot arm and a second pivot arm, each arm being pivotally attached to the at least one linkage member and the trough. The first and second pivot arms form respective parallel horizontal first and second pivot axes enabling the trough to be entirely movable over an angular range of motion extending over 180 degrees based totally on the linear movement of the output end of the hydraulic cylinder and in which an actuator control circuit controls the relative displacement of the cylinder output end. | 12-02-2010 |
20110226232 | Solar Energy System With Wind Vane - A solar energy system including a pedestal defining a longitudinal axis, a frame that is supported by the pedestal and that is rotateable relative to the pedestal about the longitudinal axis, the frame including at least one solar device, and a wind vane operatively connected to the frame to urge the frame relative to the pedestal about the longitudinal axis in response to wind acting on the wind vane. | 09-22-2011 |
20120042869 | METHODS AND SYSTEMS FOR A HELIOSTAT MIRROR AND SOLAR TRACKER ASSEMBLY - One or more cables are attached to the ring-shaped heliostat tracker assembly to control a position of the heliostat mirror on the ring shaped heliostat tracker assembly by winding the one or more cables with a cable winder spool and a cable unwinder spool. The ring-shaped rail track couples to two or more wheels joined to a structure housing a heliostat mirror. One or more position encoders track the heliostat mirror to indicate a position of the heliostat mirror on the ring-shaped rail track. | 02-23-2012 |
20120085341 | Solar Thermal System - A solar thermal power system with associated heat exchanger, variable focus heliostat, and a heliostat stand with a pneumatic piston for shock absorption and positioning is disclosed. The heat exchanger is a solar receiver possessing a beveled bottom substantially perpendicular to the angles of the reflected light from the surrounding heliostats. | 04-12-2012 |
20120097149 | Solar Tracker for Solar Energy Devices - A solar tracking device that uses thermal actuation to rotate a solar energy device to track movement of the sun for improved solar energy output of the solar energy device. Thermal actuation is generated by concentrating solar radiation using a solar collector and solar receiver. A medium that expands when heated is in thermal communication with the solar receiver and drives an actuator for rotating the solar tracking device to follow the movement of the sun. The medium may be a phase change material such as Paraffin wax. Rotational actuation may be performed using helical slots in a main housing and cam followers coupled to a shaft extended out of the main housing. At the end of the day, a combination of gravity and/or mechanical return forces may assist in returning the system to an initial position such that it is ready to receive solar radiation the next day. | 04-26-2012 |
20120279487 | METHOD FOR AUTOMATIC ORIENTATION OF A SOLAR PANEL DEVICE AND DEVICE OPERATING ACCORDING TO SAID METHOD - Method for orientation of a solar panel device ( | 11-08-2012 |
20130025583 | SOLAR TRACKING SYSTEM - Disclosed herein is a solar tracking system. The solar collector has a first end and a second end. The fulcrum is located between the first end and the second end of the solar collector. The solar collector revolves eastward or westward about the fulcrum. The water container is attached to the first end of the solar collector and has a water inlet and a water outlet valve. The first resilient member is secured to and supports an underside of the first end or second end of the solar collector. The first trigger switch is used to detect if the water container is empty of water to open the water input valve to supply water and close the water outlet valve. The second trigger switch is used to detect if the water container is full of water to close the water input valve and open the water outlet valve to drain water out of the water container. | 01-31-2013 |
20130146046 | "SOLAR TRACKER HAVING OLEO-HYDRAULIC CYLINDERS AND METHOD FOR OPERATING SAME" - The invention relates to a solar tracker having oleo-hydraulic cylinders that increase the rigidity of the system by keeping the two chambers of each cylinder pressurized, even while on stand-by. This makes the system more accurate, avoiding undesirable cylinder movement caused by oil compression. The system includes a circuit having at least one cylinder assembly ( | 06-13-2013 |
20130340744 | SOLAR GENERATOR AND HYDRAULIC CONTROL SEAT VALVE - In a solar generator, comprising a reflector and an electrohydraulic sun-position tracking device with at least one hydraulic cylinder and a hydraulic control seat valve, the reflector can be guided via the control seat valve to follow in synchronism with the course of the sun continuously and uninterruptedly. The control seat valve for regulating a pressure medium flow permanently supplied to the hydraulic cylinder comprises a seat surface and a sealing surface permanently pressed against each other with variable contact pressure, with which the pressure medium flow can be generated as controlled leakage. The sealing surface is made of a material that can be deformed by contact pressure. In the control seat valve, the controlled leakage is set in a control position at least substantially without lifting movement exclusively by the relative material deformation of the sealing surface on the seat surface, which deformation is set via the contact pressure. | 12-26-2013 |