Class / Patent application number | Description | Number of patent applications / Date published |
137563000 | Closed circulating system | 18 |
20080264499 | Anti-stall system utilizing implement pilot relief - A hydraulic control system for a machine is disclosed. The hydraulic control system may have a source driven by an engine to pressurize fluid, and a tool actuator movable by pressurized fluid. The hydraulic control system may further have a first valve element movable to control an amount of pressurized fluid directed to the tool actuator, and an interface device movable by an operator to control an amount of pressurized fluid directed to move the first valve element. The hydraulic control system may also have a second valve element movable to limit an amount of pressurized fluid available to move the first valve element, and a controller in communication with the second valve element. The controller may be configured to move the second valve element to reduce pressurized fluid directed to the first valve element in an amount related to a load on the engine. | 10-30-2008 |
20090020172 | Method and Apparatus for Water Distribution - A water distribution apparatus comprises a water user outlet facility and a water re-circulation loop. The water re-circulation loop comprises a water supply, a water pump for establishing and maintaining a flow of water in the loop, a water delivery path extending from the pump to a water user outlet facility, a water return path extending from the water user outlet facility to the water supply, and a thermal disinfection apparatus disposed in the water delivery path for improving the potability of the water within the loop. | 01-22-2009 |
20090288721 | VACUUM UNIT FOR STEAM STERILIZER - In a vacuum unit for use in drawing a vacuum on a steam sterilizer, a pump circulates water through an ejector and a reservoir. Fresh water is injected at the pump inlet to maintain a low temperature in the ejector so that it can operate efficiently. Excess water is taken from a location adjacent the bottom of the reservoir through an internal dip tube, and passed through a U-shaped conduit that serves as a condensate trap. To maintain the water discharge temperature below a predetermined level, fresh water is injected into the U-shaped conduit through a valve controlled by a temperature sensor downstream from the water injection point. | 11-26-2009 |
20110240152 | SYSTEM AND METHOD FOR ADJUSTING THE POSITION OF A CONTROL MEMBER OF A POWER PLANT - A system for adjusting the position of a control member of a power plant has a hydraulic fluid operated hydraulic actuator provided with a displaceable member connected to the control member, and having operating parameters; a servo valve configured to control the hydraulic actuator by means of the hydraulic fluid, and selectively operable between at least an open position for allowing fluid connection with the hydraulic actuator and a closed position for blocking fluid connection to the hydraulic actuator; a by-pass fluid device to drain the hydraulic fluid from the hydraulic actuator in any position of the servo valve; and a control device configured to selectively driving the servo valve as a function of an operating parameter of the hydraulic actuator so as to compensate the fluid drain, and keep the operating parameter within a given range about a selected target value. | 10-06-2011 |
20110284107 | MULTI-CHAMBER FLUID RESERVOIR - The present invention provides a multi-chamber fluid reservoir including two or more fluid chambers with thermal isolation between the chambers. The multi-chamber fluid reservoir is particularly suited for use in the cooling systems of internal combustion engines and is also suited for use in electric vehicles such as, for example, hybrid vehicles. | 11-24-2011 |
20120012208 | MOVABLE CONSTANT TEMPERATURE CIRCULATOR ASSEMBLY - A constant temperature circulator assembly may include a circulator head assembly having a fixed display and a base ring assembly adapted for connection to a container wherein the circulator head assembly movably engages the base ring assembly so that an orientation of the fixed display may be selectively adjusted with respect to the base ring assembly. | 01-19-2012 |
20120204981 | DRINKING AND DOMESTIC WATER SYSTEM - A drinking or domestic water system has a conduit system with a connection to a public water supply system, at least one riser conduit with at least one floor-by-floor conduit branching therefrom and at least one circular conduit branched in the flow direction of the water from the floor-by-floor conduit, at least one consumer connected in the circular conduit, and a return conduit into which the floor-by-floor conduit enters, by means of which it can be secured, avoiding high water consumption and thus operating costs, so that the water in the system meets hygienic conditions. The conduit system composed of supply conduit or riser conduit and return conduit forms a closed circulation conduit in which unit for cooling the water flowing through is integrated so that the drinking or domestic water can be cooled to a predetermined temperature. | 08-16-2012 |
20120222761 | Dual-Path Fluid Injection Jet - An injection jet includes a body having a first and a second passage disposed therein for channeling a fluid to a working element. The first passage remains fluidly separated from the second passage. A system includes the injection jet along with a main reservoir and an emergency reservoir. The first passage is in fluid communication with the main reservoir, while the second passage is in fluid communication with the emergency reservoir. The system operates in a standard mode and an emergency mode. Both the first passage and the second passage are configured for jointly supplying fluid to the working element during standard mode. The second passage is configured for independently supplying fluid to the working element during emergency mode. | 09-06-2012 |
20120279590 | Fuel Supply System Having A Recirculation Loop Capable Of Returnless Operation - According to the present disclosure, a fuel supply system having a recirculation loop is provided. The fuel supply system comprises a fuel tank; a return line coupled fluidly to the fuel tank; a fuel manifold; and a recirculation loop, wherein the return line is coupled fluidly to the recirculation loop at a first node to return fuel from the recirculation loop to the fuel tank, and the recirculation loop comprises a heat exchanger positioned downstream of the fuel manifold and upstream of the first node. The recirculation loop may comprise an orifice positioned upstream of the heat exchanger and downstream of the fuel manifold. Additionally, the fuel supply system may further comprise a supply line coupled fluidly to the fuel tank and further coupled fluidly to the recirculation loop at a second node positioned upstream of the fuel manifold and downstream of the first node. | 11-08-2012 |
20120305114 | OIL TANK - An oil tank has return oil from a hydraulic circuit diffused onto a surface of oil stored in a tank body, and thereby the return oil is prevented from going deep in the oil, so that a hydraulic pump is prevented from sucking oil containing air bubbles. The oil tank includes: an intake port provided in the vicinity of a bottom of the tank body and connected to the hydraulic pump of a hydraulic circuit; and an return oil inlet connected to a return pipe of the hydraulic circuit through which the return oil enters the tank body. In the tank body, a container adapted to hold the return oil is provided. The container is configured so that the return oil inlet opens in the vicinity of the bottom of the container. | 12-06-2012 |
20130126023 | HYDRAULIC SYSTEM WITH ENERGY REGENERATION - A hydraulic system includes a tank for hydraulic fluid, a supply line connected to the tank and a plurality of hydraulic functions connected to the supply line. Each hydraulic function includes an actuator that is connectable to a load and that has a first side and a second side. Each function includes a first control valve connected to the first side and a second control valve connected to the second side. Each function also has an independent tank line, and the first and second control valves are connected to both the supply line and the independent tank line. A third control valve is connected between the independent tank line and the tank, and a check valve is connected between the supply line and the independent tank line. | 05-23-2013 |
20140290765 | GAS RECYCLING SYSTEM FOR A CONTROLLED ATMOSPHERE UNIT OPERATION - A gas recycling system for a controlled atmosphere furnace includes a controlled atmosphere furnace having a product entry, a product exit, a process gas inlet adjacent said product exit, and a spent gas outlet adjacent said product entry. A spent gas recycler is operationally connected to the spent gas outlet. The recycler produces a recycled process gas stream and a waste gas stream. The recycled process gas stream is returned to the controlled atmosphere furnace. The waste gas stream is returned to the controlled atmosphere furnace at a point downstream from the spent gas outlet. | 10-02-2014 |
20150027570 | HYDRAULIC PRESSURE SUPPLY SYSTEM OF AUTOMATIC TRANSMISSION FOR VEHICLE - A hydraulic pressure supply system may supply low hydraulic pressure generated at a low-pressure hydraulic pump to a low pressure portion through a low-pressure regulator valve, may supply a portion of the low hydraulic pressure to a high-pressure hydraulic pump, and may supply high hydraulic pressure generated at the high-pressure hydraulic pump to a high pressure portion through a high-pressure regulator valve. | 01-29-2015 |
20150101691 | SUBMERSIBLE WATER CIRCULATION SYSTEM FOR ENCLOSED TANKS - A submersible, water circulation system for enclosed tanks such as used by municipalities, fire districts, and industries. The system includes a driving unit having a shell extending along an axis with a pump supported within the shell. The shell has at least one inlet and at least one outlet and is positionable on the floor of the tank with the outlet facing upwardly. The upwardly facing outlet is preferably a thin, upwardly facing, elongated slot and creates a thin, substantially planar discharge of water therethrough that is directed upwardly toward the surface of the body of water. The substantially planar discharge presents a very large surface area for its volume and induces water adjacent the outside of the shell of the driving unit to move upwardly with it toward the surface of the body of water. | 04-16-2015 |
20150114494 | RECIRCULATION BLOCK - A recirculation block includes a top face and a bottom face that are connected by a right side face, a left side face, a front face, and a rear face. The recirculation block further includes a pair of junction block entry ports and a pair of side block entry ports. Both of the junction block entry ports are positioned on the bottom face. The first side block entry port is positioned on the right side face and the second side block entry port is positioned on the left side face. The recirculation block further includes a pair of exit ports. The first exit port is in fluid communication with both the first junction block entry port and the first side block entry port. The second exit port is in fluid communication with both the second junction block entry port and the second side block entry port. | 04-30-2015 |
20160003348 | Hydraulic Pressure Supply System of Automatic Transmission - A hydraulic pressure supply system of an automatic transmission may include a low-pressure oil pump generating low hydraulic pressure while being driven by an engine to exhaust the low hydraulic pressure to a first low-pressure channel, a high-pressure oil pump raising a portion of the hydraulic pressure in the first low-pressure channel to a high pressure while being driven by an electric motor to exhaust the hydraulic pressure to a first high-pressure channel, a low-pressure regulator valve controlling the hydraulic pressure while exhausting a portion of the hydraulic pressure to supply the controlled hydraulic pressure to a low-pressure part through a second low-pressure channel, and a high-pressure regulator valve controlling the hydraulic pressure while re-circulating a portion of the hydraulic pressure to the low-pressure part through single or two re-circulation channels according to the pressure to supply the controlled hydraulic pressure to a high-pressure part through the second high-pressure channel. | 01-07-2016 |
20220137652 | VALVE ARRANGEMENT - Valve arrangement for influencing a fluid flow for a fluid consumer, having a first valve group with which a first actuator is associated, having a second valve group with which a second actuator is associated, the first valve group and second valve group being associated in a first functional position as a parallel circuit with a first fluid line in a first functional position and are associated with a second fluid line in a second functional position as a series circuit, the first valve group or second valve group being designed for actuating the respective other actuator in the first functional position and being designed for switching off the respective other actuator in the second functional position. | 05-05-2022 |
137564000 | With thermal circulating means (thermo-siphons) | 1 |
20110315252 | POWERLESS HOT WATER PUMPING APPARATUS - The present invention relates to a powerless hot water pumping apparatus which receives cold water through a supply pipe equipped with a backflow prevention check valve, and which generates hot water and powerlessly discharges the hot water through a discharge pipe. The powerless hot water pumping apparatus comprises an electric heater which generates heat when supplied with electric power; an upper cylinder which accommodates the electric heater therein, to the top of which the supply pipe is connected, wherein a steam generating space of a predetermined size is interposed between the inner surface of the upper cylinder and the electric heater; and a lower cylinder which is arranged beneath the upper cylinder, the top of which is in communication with the bottom of the upper cylinder through a connection passage, and to the bottom of the discharge pipe is connected. Hot water generated in the lower cylinder is automatically discharged by the steam pressure which is generated in the steam generating space of the upper cylinder by means of the heat generated by the electric heater. | 12-29-2011 |