LIQUID-COOLED INTERNAL COMBUSTION ENGINE WITH A PARTIALLY INTEGRATED EXHAUST MANIFOLD

A liquid-cooled engine and method for its operation is described wherein the engine includes a cylinder head comprising at least one coolant jacket and exhaust manifold at least partially integrated therein. In one particular example, the exhaust pipes merge in stages within the cylinder head before merging into a common exhaust gas collector outside the cylinder head. Inclusion of a coolant system according to the present disclosure allows the thermal load of the cylinder head to be controlled, which thereby allows cooling to be achieved in a targeted manner inside the cylinder head by means of liquid cooling and forced convection. 1. A liquid-cooled engine comprising:a cylinder head including four cylinders arranged in series along a longitudinal axis of the cylinder head and an exterior side-wall;an exhaust gas discharge system including, for each cylinder, an exhaust port in fluidic communication with the cylinder and an exhaust line, each of the exhaust lines merging in stages forming an exhaust manifold, the exhaust lines associated with a first outer cylinder and a first inner cylinder fluidly converging to form a first merged exhaust line and the exhaust lines associated with a second inner cylinder and a second outer cylinder fluidly converging to form a second merged exhaust line, the first and second merged exhaust lines fluidly converge downstream to form an exhaust gas collector, at least a portion of the exhaust manifold is integrated into the cylinder head and extends through the exterior side-wall, the exhaust manifold including an outer separating wall fluidly dividing the exhaust line corresponding to the first inner cylinder from the exhaust line corresponding to the first outer cylinder and an inner separating wall fluidly dividing the exhaust line associated with the first inner cylinder from the exhaust line associated with the second inner cylinder, the inner separating wall having a greater lateral width than the outer separating wall, and a ...

SPLIT COOLING METHOD AND APPARATUS

A system and method for cooling an internal combustion engine. In one embodiment of the invention a cooling system for an internal combustion engine is disclosed, comprising an engine; an intercooler for receiving combustion air from a turbocharger, the intercooler comprising an air-to-liquid heat exchanger for exchanging heat between the combustion air and a liquid coolant; an intercooler radiator; at least one engine coolant radiator; an expansion tank; an oil cooler; and at least one pump, wherein the dedicated fan is controlled by a temperature switch or controller and wherein the at least one engine coolant radiator and the intercooler radiator are located on opposite sides of the engine. 1. A method for cooling an internal combustion engine comprising the steps of: an intercooler for receiving combustion air from a turbocharger, the intercooler comprising an air-to-liquid heat exchanger for exchanging heat between the combustion air and the liquid coolant,', a heat exchanger for exchanging heat between the liquid coolant and ambient air, and', 'a first fan; and, 'an intercooler radiator comprising], 'circulating a liquid coolant through a first intercooler loop, the first intercooler loop comprising an engine;', 'an engine radiator; and', 'a second fan,, 'circulating the liquid coolant through a second intercooler loop, the second intercooler loop comprisingwherein, the temperature of the liquid coolant provided by the first intercooler loop is lower than the temperature of the liquid coolant provided by the second intercooler loop.2. The method of claim 1 , further comprising the step of controlling the first and second fans by a temperature switch or a microprocessor controller.3. The method of claim 2 , further comprising the step of detecting a temperature of the liquid coolant by a temperature sensor in the temperature switch.4. The method of claim 3 , further comprising the step of energizing the first and second fans by the temperature switch or ...

CONTROL OF COMPRESSOR OUTLET PRESSURE BASED ON TEMPERATURE OF THERMAL LOAD COOLED BY COOLANT IN ELECTRIC VEHICLE

A thermal management system is provided for a vehicle having an electric traction motor. The system includes a coolant system configured to convey coolant through a first thermal load, a refrigerant circuit including a condenser and a compressor configured to compress a refrigerant, a control system and a sensor. The refrigerant circuit is configured to cool at least one second thermal load. The sensor is configured to send signals to the control system that are indicative of a temperature of the first thermal load. The control system is configured to control an outlet pressure of the compressor based on the signals. 1. A method of operating a thermal management system of a vehicle having an electric traction motor , the method comprising:circulating coolant through a first thermal load;circulating refrigerant through a refrigerant circuit including a condenser and a compressor to cool at least one second thermal load;receiving signals from a sensor that are indicative of a temperature of the first thermal load; andcontrolling an outlet pressure of the compressor based on the signals.2. The method as claimed in claim 1 , wherein the step of controlling the output pressure includes the steps of:determining if a threshold temperature is exceeded based on the signals received from the sensor;substantially preventing the outlet pressure of the compressor from exceeding a first maximum outlet threshold pressure if the threshold temperature is determined not to be exceeded; andsubstantially preventing the outlet pressure of the compressor from exceeding a second maximum outlet threshold pressure if the threshold temperature is determined to be exceeded, wherein the second maximum outlet threshold pressure is lower than the first maximum outlet threshold pressure.3. The method as claimed in claim 1 , wherein a radiator is operable to cool the coolant claim 1 , and wherein the radiator is positioned adjacent the condenser and receives an airflow passing through the ...

TIMING BELT SYSTEM FOR VEHICLE

A timing belt system for a vehicle is capable of reducing production costs of a timing belt and securing durability of the timing belt. The timing belt system for a vehicle includes a camshaft timing gear, a crankshaft timing gear, a timing belt which connects the two timing gears to each other so as to synchronize rotations of the two timing gears, and a tensioner which adjusts tension of the timing belt, may include: a case which has one side formed in an opened container shape so as to enclose the crankshaft timing gear, the camshaft timing gear, the timing belt, and the tensioner; and a front side plate which is coupled to the case so as to close one open side of the case. 1. A timing belt system for a vehicle , comprising:a camshaft timing gear;a crankshaft timing gear;a timing belt which connects the two timing gears to each other so as to synchronize rotations of the two timing gears;a tensioner which adjusts tension of the timing belt;a case including one side formed in an opened container shape so as to enclose the crankshaft timing gear, the camshaft timing gear, the timing belt, and the tensioner; anda front side plate which is coupled to the case so as to close the one open side of the case.2. The timing belt system of claim 1 , wherein the case includes:a rear side plate which is formed to block rear sides of the crankshaft timing gear, the camshaft timing gear, the timing belt, and the tensioner;an outer wall which vertically protrudes from the rear side plate along a circumference of the rear side plate; andan inner wall which vertically protrudes from the rear side plate along the circumference of the rear side plate at a portion relatively further inward from the circumference of the rear side plate than the outer wall.3. The timing belt system of claim 2 , wherein the crankshaft timing gear claim 2 , the camshaft timing gear claim 2 , the timing belt claim 2 , and the tensioner are disposed in an internal space which is enclosed by the rear side ...

HYDRAULIC HAMMERING DEVICE

A hydraulic hammering device that uses a scheme in which a front chamber is switched into communication with a low-pressure circuit when a piston advances, wherein occurrences of “galling” to the piston at a sliding contact portion with a front-chamber liner is reduced. The front chamber has the front-chamber liner fitted to an inner surface of a cylinder. A hydraulic chamber space communicating with the front chamber and filled with hydraulic oil is formed as a cushion chamber on the inner peripheral surface of a rear portion of the front-chamber liner. The cushion chamber has a second drain circuit (from first end face grooves to slits to second end face grooves, which is provided separately from a drain circuit that guides the hydraulic fluid passing through a liner bearing of the front-chamber liner to the low-pressure circuit. 1. A hydraulic hammering device comprising:a piston slidably fitted into a cylinder, the piston being configured to advance and retract to hammer a rod for hammering;a front chamber and a rear chamber that are defined between an outer peripheral surface of the piston and an inner peripheral surface of the cylinder and arranged separated from each other in the front and rear direction; anda switching valve mechanism configured to switch the front chamber into communication with a low pressure circuit when the piston advances and to supply and discharge hydraulic oil so that an advance and a retraction of the piston can be repeated,wherein the front chamber has a front-chamber liner that is fitted to an inner surface of the cylinder,a hydraulic chamber space is formed to the front-chamber liner as a cushion chamber, the hydraulic chamber space communicating with the front chamber to be filled with hydraulic oil, andthe cushion chamber has a second drain circuit that is formed separately from a drain circuit configured to guide hydraulic oil passing a liner bearing section of the front-chamber liner to the low pressure circuit and that ...

INTAKE-AIR COOLING DEVICE FOR ENGINE AND METHOD FOR COOLING ENGINE

A first cooling water circuit is configured such that the cooling water that has come out from the engine passes through the first intake-air cooling device and returns to the engine again. A second cooling water circuit is configured such that the cooling water that has come out from the engine passes through the second intake-air cooling device and returns to the engine again. A heat exchanger is configured to perform heat exchange between the cooling water that has come out from the engine and flowing to the first intake-air cooling device and the cooling water that has come out from the second intake-air cooling device and that is flowing to the engine. 1. An intake-air cooling device for an engine that is provided on the engine including a cooling water circuit through which cooling water for the engine flows and a supercharger that supercharges intake air for the engine , comprising a first intake-air cooling device , a second intake-air cooling device , and a heat exchanger , wherein:the cooling water circuit has a first cooling water circuit and a second cooling water circuit;the first intake-air cooling device is configured such that the intake air is cooled with the cooling water in the first cooling water circuit, and the second intake-air cooling device is configured such that, with the cooling water in the second cooling water circuit, the intake air that has been cooled by the first intake-air cooling device is further cooled;the first cooling water circuit is configured such that the cooling water that has come out from the engine passes through the first intake-air cooling device and returns to the engine again;the second cooling water circuit is configured such that the cooling water that has come out from the engine passes through the second intake-air cooling device and returns to the engine again; andthe heat exchanger is configured to perform heat exchange between the cooling water that has come out from the engine and flowing to the first ...

REDUNDANT COOLING MODULE FOR AN AUTONOMOUS VEHICLE COMPUTER

Systems, methods, and computer-readable media are disclosed. An example coolant system can be configured in an autonomous vehicle. The system can include a first coolant loop configured with a first series of coolant hoses to communicate a first volume of coolant fluid between a first reservoir, a first coolant pump, a three-way heat exchanger, and a computer system heat exchanger and a second coolant loop configured with a second series of coolant hoses to communicate a second volume of coolant fluid between a second reservoir, a second coolant pump, the three way heat exchanger, and the computer system heat exchanger. The system can further include a third coolant loop configured with a third series of coolant hoses to communicate third volume of coolant fluid between the three-way heat exchanger and an engine heat exchanger of the vehicle. 1. A three-way heat exchanger comprising:one or more first internal hoses connected to a first coolant loop configured to communicate a first volume of coolant fluid between the three-way heat exchanger and a computer system heat exchanger;one or more second internal hoses connected to a second coolant loop configured to communicate a second volume of coolant fluid between the three-way heat exchanger and the computer system heat exchanger; andone or more third internal hoses connected to a third coolant loop configured to communicate a third volume of coolant fluid between the three-way heat exchanger and an engine heat exchanger.2. The three-way heat exchanger of claim 1 , wherein the three-way heat exchanger is configured such that the first volume of coolant fluid and the second volume of coolant fluid are each separately cooled in the three-way heat exchanger.3. The three-way heat exchanger of claim 1 , wherein the computer system heat exchanger is associated with a computer system of an autonomous vehicle claim 1 , and wherein the engine heat exchanger is associated with the autonomous vehicle.4. The three-way heat ...

FLOW CONTROL ACTUATOR FOR RECIPROCATING COMPRESSORS

An electromechanical actuator for controlling the delivery rate of reciprocating compressors, comprising: a movable rod designed to cooperate at one end with a suction valve of a reciprocating compressor and at the other with a moving element made of a magnetizable material; at least one chamber in which said moving element is housed and onto which at least one winding of an electromagnet positioned inside a seat facing said chamber protrudes, there being positioned between said winding and said chamber at least one protective element made of a non-magnetic material and provided with static sealing elements and designed to keep the winding of the electromagnet separated from the chamber in which said moving element is housed, characterized in that said protective element made of a non-magnetic material comprises at least two series of static sealing elements, a first series being positioned internally to the protective element and a second series being positioned externally to the protective element, with gas recovery holes being provided between said series of static sealing elements, and in that at least one hole for connection to a gas bleeding and washing circuit is provided in said chamber. 1. An electromechanical actuator for controlling the delivery rate of reciprocating compressors , comprising: a movable rod designed to cooperate at one end with a suction valve of a reciprocating compressor and at the other end with a moving element made of a magnetizable material; at least one chamber in which said moving element is housed and onto which at least one winding of an electromagnet positioned inside a seat facing said chamber protrudes , there being positioned between the winding and said chamber at least one protective element made of a non-magnetic material provided with static sealing elements and designed to keep the winding of the electromagnet separated from the chamber in which the moving element is housed , characterized in that said protective element ...

Heatsink Structure for Pile Driver

A heatsink structure for a pile driver includes a rotation seat, a pivot base, a pile driver gear unit, and at least one radiating pipe. The rotation seat is pivotally connected with the pivot base. The pile driver gear unit is mounted in the pivot base and includes a receiving space and a vibration device. A pump device is mounted in the receiving space of the pile driver gear unit. The at least one radiating pipe is mounted on the pivot base. Thus, the lubricating oil in the receiving space of the pile driver gear unit is pumped by the pump device during operation and is delivered to the at least one radiating pipe so that the at least one radiating pipe cools down and carries away the heat of the lubricating oil. 1. A heatsink structure comprising:a rotation seat, a pivot base, a pile driver gear unit, and at least one radiating pipe;wherein:the rotation seat is pivotally connected with the pivot base;the pivot base is provided with a mounting section;the pile driver gear unit is mounted in the mounting section of the pivot base and includes a receiving space and a vibration device;the vibration device includes two drive shafts;the pile driver gear unit includes an inlet hole and an outlet hole;the inlet hole of the pile driver gear unit is connected to the receiving space;a pump device is mounted in the receiving space of the pile driver gear unit and includes an inlet port, an outlet port, a receiving recess, a rotation shaft, a through hole, a driven member and at least one guiding member;the inlet port of the pump device is connected to the receiving space of the pile driver gear unit and connected to the receiving recess;the outlet port of the pump device is connected to the outlet hole of the pile driver gear unit and connected to the receiving recess;the rotation shaft of the pump device is pivotally mounted in the through hole;the at least one guiding member of the pump device is mounted in the receiving recess and connected with a lower end of the ...

APPARATUS AND METHOD FOR GAS COMPRESSION

An apparatus and method for substantially reducing or eliminating the introduction of ambient air into an open-crankcase compressor is disclosed. The method employs a compressed gas recycle control loop to reduce the magnitude of vacuum inside the open-crankcase compressor relative to ambient air pressure, thereby reducing or eliminating the introduction of ambient air into the open-crankcase compressor during the gas compression process. 1. An apparatus comprising: an inlet; and', 'an outlet;, 'an oil-less open-crankcase compressor in an environment, the environment comprising a quantity of ambient air, the oil-less open-crankcase compressor comprisinga quantity of compressed gas produced by the oil-less open-crankcase compressor; anda recycle loop coupled to the outlet of the oil-less open-crankcase compressor and the inlet of the oil-less open-crankcase compressor, wherein the recycle loop is configured to control the flow of the quantity of compressed gas through the recycle loop so as to introduce at least a portion of the quantity of compressed gas produced by the oil-less open-crankcase compressor from the outlet of the oil-less open-crankcase compressor to the inlet of the oil-less open-crankcase compressor, thereby substantially inhibiting the creation of a vacuum at the inlet of oil-less open-crankcase compressor relative to the quantity of ambient air, thereby substantially eliminating the intrusion of the quantity of ambient air into the compressor.2. The apparatus of wherein the recycle loop further comprises a pulsation dampener coupled to the inlet of the oil-less open-crankcase compressor.3. The apparatus of wherein the recycle loop further comprises a pulsation dampener coupled to the outlet of the oil-less open-crankcase compressor.4. The apparatus of wherein the recycle loop further comprises:a pulsation dampener coupled to the inlet of the oil-less open-crankcase compressor; anda pulsation dampener coupled to the outlet of the oil-less open- ...

SELF-CHARGING HYDRAULIC HAMMER

A self-charging assembly having a first side wall, a second side wall, a third sidewall, a first chamber, a second chamber, a first valve assembly, and a second valve assembly. The second side wall is disposed within the first side wall. The third sidewall connects the first side wall and the second side wall. The first chamber is defined by the first, second, and third sidewalls. The second chamber is disposed within the first chamber and is defined by the second side wall. The first valve assembly is configured to selectively place an interior portion of the second chamber in communication with an atmosphere outside of the self-charging assembly. The second valve assembly is configured to selectively place an interior portion of the first chamber in communication with the interior portion of the second chamber. 1. A self-charging assembly for a hammer assembly , the self-charging assembly comprising:a first side wall,a second side wall disposed within the first side wall, anda third side wall connecting the first side wall and the second side wall;a first gas chamber defined by the first side wall, the second side wall and the third side wall, the first gas chamber configured to hold a compressible gas;a second gas chamber disposed within the first gas chamber and defined by the second side wall, the second gas chamber configured to hold a compressible gas;a first valve assembly configured for selectively placing an interior portion of the second gas chamber in communication with an atmosphere outside of the self-charging assembly; anda second valve assembly configured for selectively placing an interior portion of the first gas chamber in communication with the interior portion of the second gas chamber.2. The self-charging assembly according to claim 1 , wherein the first valve assembly is configured to place the interior portion of the second gas chamber in communication with the atmosphere outside the self-charging assembly when an air pressure within the ...

A FULLY ACTUATED VALVE FOR A RECIPROCATING MACHINE AND RECIPROCATING MACHINE INCLUDING SAID VALVE

A valve for a reciprocating machine is disclosed. The valve includes a seat provided with flow apertures therein. A valve closing member is adapted to co-act with the seat for selectively closing and opening the flow apertures. A cage is connected to the seat and forms a guide, in which the actuation stem of a valve closing member is slidingly engaged and guided. 2. The valve of claim 1 , wherein the cover and the cage are monolithically formed as a single piece.3. The valve of claim 1 , wherein the guide has a tubular shape.4. The valve of claim 1 , wherein the cage comprises a plurality of posts extending between the cover and the seat claim 1 , and wherein the posts define flow passages.5. The valve of claim 1 , wherein the cover and the cage are monolithically formed as a single piece claim 1 , wherein the sealing arrangement is locked to the cover and/or to the guide with a locking member claim 1 , the actuation stem extending through the locking member.6. The valve of claim 1 , further comprising a gas recovery duct claim 1 , adapted to recover gas leakages from the sealing arrangement.7. The valve of claim 1 , wherein the actuation stem extends through the seat.8. The valve of claim 1 , wherein the guide is monolithically formed as a single piece with the cage.9. The valve of claim 1 , wherein the seat is monolithically formed as a single piece with the cage.10. The valve of claim 1 , further comprising a guard claim 1 , wherein the valve closing member is arranged between the seat and the guard and adapted to move therebetween.11. The valve of claim 1 , wherein the seat has a replaceable seat plate claim 1 , and wherein the valve closing member is arranged to contact the replaceable seat plate when the valve closing member is in a valve closing position.12. The valve of claim 1 , configured as a suction valve or as a delivery valve. Embodiments disclosed herein generally relate to actuated valves for reciprocating machines, specifically for reciprocating ...

PRESSURE ACCUMULATOR AND PERCUSSION DEVICE

A pressure accumulator for connection to a hydraulic fluid-driven percussion device. The percussion device includes at least one impact piston arranged to carry out a reciprocating motion caused by the pressure from the hydraulic fluid. The pressure accumulator is arranged in communication with a hydraulic fluid space of the impact piston. The pressure accumulator includes a space that extends at least partly around the impact piston when the pressure accumulator is mounted on the percussion device. A partition divides the space into two separate pressure chambers so that the pressure chambers are located an axial direction of the impact piston in relation to each other when the pressure accumulator is mounted on the percussion device. A first of the two separate pressure chambers is intended to be filled with a compressible medium. A second pressure chamber is in fluid communication with the hydraulic fluid space of the impact piston. 1. A pressure accumulator for connection to a hydraulic fluid-driven percussion device , wherein the percussion device comprises at least one impact piston that is arranged to carry out a reciprocating motion caused by pressure from hydraulic fluid , whereby said pressure accumulator is arranged in communication with a hydraulic fluid space of the impact piston , said pressure accumulator comprising:a space that extends at least partly around said impact piston when said pressure accumulator is mounted on said percussion device, anda partition configured to divide the space into two separate pressure chambers so that the pressure chambers are located in an axial direction of the impact piston in relation to each other when said pressure accumulator is mounted on said percussion device, whereby a first of said two separate pressure chambers is intended to be filled with a compressible medium, and a second pressure chamber is in fluid communication with the hydraulic fluid space of the impact piston.2. The pressure accumulator according ...

COLLET HYDRAULIC HAMMER BUSHING

A bushing assembly for a reciprocating device is provided. The bushing assembly includes a hollow bushing housing, a collet guide member, and an adjuster mechanism. The hollow bushing housing has a substantially cylindrical shape and an angled inner sidewall. The collet guide member is disposed radially inward from and contacts the angled inner sidewall of the hollow bushing housing. The adjuster mechanism contacts a lower surface of the collet guide member and urges the collet guide member along the angled inner sidewall of the hollow bushing housing. 1. A bushing assembly for a reciprocating device , the bushing assembly comprising:a hollow bushing housing having a substantially cylindrical shape and an angled inner sidewall;at least one collet guide member disposed radially inward from and contacting the angled inner sidewall of the hollow bushing housing; andan adjuster mechanism contacting a lower surface of the at least one collet guide member and configured to selectively urge the at least one collet guide member along the angled inner sidewall of the hollow bushing housing.2. The bushing assembly of claim 1 , wherein the at least one collet guide member comprises a pair of semi-circular collet guide members claim 1 , the pair of semi-circular collet guide members collectively forming an annular shape.3. The bushing assembly of claim 1 , wherein the hollow bushing housing comprises a threaded inner region at one end thereof; andwherein the adjuster mechanism comprises a threaded exterior configured to engage the threaded inner region of the hollow bushing housing such that rotation of the adjuster mechanism relative to the hollow bushing housing causes the adjuster mechanism to urge the at least one collet guide member into the hollow bushing housing.4. The bushing assembly of claim 1 , wherein the angled inner sidewall of the hollow bushing housing forms a first inner diameter at a first end of the hollow bushing housing and a second claim 1 , smaller inner ...

CAMSHAFT PHASER SYSTEM

A camshaft phaser system including an output drive element non-rotatably connected to a camshaft, and a control valve disposed in a central receptacle of the output drive element, the control valve extending axially into a central bore of the camshaft and being formed with at least a first operating port and a second operating port axially spaced apart therefrom. The control valve is axially disposed such that the first operating port is axially positioned in the camshaft. 16-. (canceled)7. A camshaft phaser system comprising:an output drive element non-rotatably connected to a camshaft; anda control valve disposed in a central receptacle of the output drive element, the control valve extending axially into a central bore of the camshaft and being formed with at least a first operating port and a second operating port axially spaced apart therefrom, the control valve being axially disposed such that the first operating port is axially positioned in the camshaft.8. The camshaft phaser system as recited in wherein the camshaft has a first annular groove in a region of the first operating port.9. The camshaft phaser system as recited in wherein the control valve is disposed within a central screw claim 7 , a radially outer peripheral surface of the central screw having formed thereon a radially extending shoulder claim 7 , the shoulder being located within a recess formed in the end face of the output drive element and bearing axially against the output drive element.10. The camshaft phaser system as recited in wherein the output drive element has a plurality of first bores extending angularly from radially outward to radially inward toward the camshaft for connection of the first operating port to a pressure chamber.11. The camshaft phaser system as recited in wherein at an end facing the camshaft claim 10 , the first bores each open into a respective axial connection opening fluidically connected to a first annular groove of the camshaft in a region of the first ...

ENGINE WITH ROTATING VALVE ASSEMBLY

An engine with a rotating valve assembly is disclosed. The valve assembly including a housing having an internal cavity, an open top, and an open bottom, the open top and open bottom being in fluid communication with the internal cavity; a valve barrel positioned in the internal cavity and adapted for rotation therein, the valve barrel having an annular peripheral surface and an aperture extending transversely therethrough communicating with the peripheral surface on opposite sides; a first seal assembly positioned in the open top and a second seal assembly positioned in the open bottom, the first and second seal assemblies each include a seal having a sealing surface in mating engagement with the peripheral surface and an aperture extending therethrough. 1. A valve assembly , comprising:a housing having an internal cavity, an open top, and an open bottom, the open top and open bottom being in fluid communication with the internal cavity;a valve barrel positioned in the internal cavity and adapted for rotation therein, the valve barrel having an annular peripheral surface and an aperture extending transversely therethrough communicating with the peripheral surface on opposite sides;a first seal assembly positioned in the open top and a second seal assembly positioned in the open bottom, wherein the first and second seal assemblies each include a seal having a sealing surface in mating engagement with the peripheral surface and an aperture extending therethrough, the aperture having a size and shape substantially equal to the aperture in the valve barrel to permit flow therethrough; andwherein when the aperture of the valve barrel is in alignment with the apertures of the first and second seal assemblies, gas is permitted to flow through the valve assembly.2. The valve assembly according to claim 1 , wherein the valve barrel further includes a first stub shaft extending from a forward end face of the valve barrel and a second stub shaft extending from an aft end face ...

RETROFIT OF A RECIPROCATING COMPRESSOR WITH A CONCENTRIC VALVE AND A VALVE CLAMP HAVING AN INLET PORT IN A TOP COVER OF THE CLAMP

An assembly to retro-fit a valve head of a compressor that may include a valve head including an exhaust orifice, a concentric two-way valve carried by the valve head, and a valve clamp having an intake port in a top of the valve clamp; the valve clamp being removably coupled to the valve head. The valve clamp may include an annular first wall that defines an intake chamber in fluid connection with the intake port and an annular second wall outside the first wall. The space between the first and second walls may define an exhaust chamber in fluid connection with the exhaust orifice of the valve head. The valve clamp may also include a plunger housing to engage and displace a spring-loaded plunger. The plunger housing may be supported on the valve clamp with a plurality of support arms. 1. An assembly of a compressor comprising:a piston cylinder;a valve head including an exhaust orifice, said valve head removably coupled to said piston cylinder;a concentric two-way valve carried by said valve head; anda valve clamp, said valve clamp removably coupled to said valve head, said valve clamp extending into a central hollow of said valve head, said valve clamp contacting and securing said concentric valve within said valve head;an intake opening, wherein the opening opens into an intake port, said intake opening is positioned over said concentric valve and forms part of said intake port, said opening formed in said valve clamp.2. The assembly of a compressor of wherein said valve clamp includes an first wall having an inner face and an outer face claim 1 , said inner face of said first wall defining an intake chamber claim 1 , said intake chamber is in fluid connection with said intake opening claim 1 , intake port and an intake portion of said concentric valve claim 1 , said intake opening formed in said valve clamp.3. The assembly of a compressor of wherein said valve clamp includes a second wall radially outward of said first wall claim 2 , said second wall having an ...

Pump, In Particular Pneumatic Pump

The invention relates to a pump comprising a housing (), comprising at least one pump chamber (), comprising an inlet valve () that has a valve element () which controls an inlet opening (), comprising an outlet valve () that has a valve element () which controls an outlet opening (), comprising a pressure relief valve () that has a valve element () which controls a pressure relief opening () and on which a spring element () acts in the closing direction (), and comprising a spring chamber () that receives the spring element. A stop element () which can be accessed from the housing outer face and which can be adjusted in the closing direction () is arranged in the spring chamber (), the spring element () end that faces away from the closing direction resting against the stop element. 121530303033333343434831434951314843494930acacac. Pump with a housing () , with at least one pump chamber () , with an inlet valve () equipped with a valve element () that controls an inlet opening () , with an outlet valve () equipped with a valve element () that controls an outlet opening () , and with a pressure relief valve () equipped with a valve element () impinged on a spring element () in closing direction () that controls a pressure relief opening () , and with a spring space () that contains the spring element , whereby a stop element () movable in closing direction () and accessible from the outer side of the housing is arranged , on which the spring element () supports itself with its end pointing against the closing direction , the lower-pressure side of the pressure relief valve () ending in the spring space () , the spring space () being connected to the inlet port ().25449533151534952. Pump according to claim 1 , characterized in that the inner wall () of the spring space () has an adjustment area () that extends along the closing direction () in which the excessively dimensioned stop element () with regard to the adjustment area () is held in place by clamping claim 1 ...

Electric power distribution for fracturing operation

Providing electric power distribution for fracturing operations comprising receiving, at a transport, electric power from a mobile source of electricity at a first voltage level and supplying, from the transport, the electric power to a fracturing pump transport at the first voltage level using only a first, single cable connection. The first voltage level falls within a range of 1,000 V to 35 kilovolts. The transport also supplies electric power to a second transport at the first voltage level using only a second, single cable connection.

HEAT EXCHANGER FOR VEHICLE

A heat exchanger for a vehicle includes a heat radiating portion provided with first, second and third connecting lines receiving first, second and third operating fluids, respectively, which heat-exchange with each other while passing through the first, second and third connecting lines, a bifurcating portion adapted for one of the operating fluids to bypass the heat radiating portion according to a temperature of the one operating fluid, and a valve unit mounted at an inflow hole forming the bifurcating portion, selectively opening or closing one of the connecting lines, wherein a plurality of inflow holes and a plurality of exhaust holes for the first, second and third operating fluid are formed in the heat radiating portion and the bifurcating portion. 1. A heat exchanger for a vehicle , comprising:a heat radiating portion provided with a first connecting line, a second connecting line and a third connecting line formed alternately by a stacked plurality of plates, and receiving first, second and third operating fluids into the first, second and third connecting lines, respectively, the first, second and third operating fluids heat-exchanging with each other while passing through the first, second and third connecting lines, wherein the first, second and third operating fluids supplied into the first, second and third connecting lines are not mixed with each other while circulated;a bifurcating portion configured to bypass one of the first, second and third operating fluids around the heat radiating portion according to a temperature of the one operating fluid;a valve unit mounted at an inflow hole forming the bifurcating portion, selectively opening or closing one of the first second and third connecting lines by expansion or contraction of a deformable material filled therein to selectively direct the one operating fluid to the heat radiating portion or the bifurcating portion according to a temperature of the one operating fluid; anda plurality of inflow ...

HEAT EXCHANGER FOR CONTROLLING THE TEMPERATURE OF A FIRST FLUID USING A SECOND FLUID

The present invention relates to a heat exchanger for controlling the temperature of a first fluid using a second fluid, wherein the heat exchanger has a base for separating the first fluid from the second fluid, said base having a sealing region. Furthermore, the heat exchanger has a partition for separating the first fluid from the second fluid, wherein the at least one partition is connected in a fluid-tight manner to the base, wherein the at least one partition forms a fluid duct for the first fluid. Furthermore, the heat exchanger has a housing. In the sealing region between the base and the housing, there is arranged a sealing element which is pressed in a fluid-tight manner against the base and against the housing. 1. A heat exchanger for controlling the temperature of a first fluid using a second fluid , wherein the heat exchanger has the following features:a sheet for separating the first fluid from the second fluid, said sheet comprising a sealing region;a partition for separating the first fluid from the second fluid, wherein the at least one partition is connected in a fluidtight manner to the sheet, wherein the at least one partition forms a fluid duct for the first fluid;a plurality of fluid ducts is arranged between two opposite sheets, anda housing, which is pressed in a fluidtight manner against the sheet in the sealing region, having a sealing element, which is arranged in the sealing region between the sheet and the housing, wherein the sealing element is pressed in a fluidtight manner against the sheet and against the housing.2. The heat exchanger as claimed in claim 1 , in which the sheet and the housing each have claim 1 , in the sealing region with a seal claim 1 , at least one guide surface for positive connection of the sheet to the housing.3. The heat exchanger as claimed in claim 1 , wherein the housing is formed as a single part claim 1 , two parts or a plurality of parts comprising more than two parts.4. The heat exchanger as claimed in ...

A HAMMERING DEVICE

A hammering device which can be coupled to a working machine, said device comprising a first frame, said frame having means for attaching to the working machine and to the frame coupled at a distance from each other locating series suspensions means, via which as a frame for vibrators working second frame can be attached to the first frame, wherein said second frame comprises vibrators and gripping jaws for gripping to an object, wherein the gripping jaws locate on turning jaw bars wherein said bars can be moved by means of hydraulic cylinder and that the first frame is like a forking frame of U-form coupled to the attachment means, which has suspension means on the inner surfaces of both forks, via which suspension means the second frame has been attached to the first frame. The second frame is directed both backwards and downwards along the portion so that the articulation points of the turning jaw bars fitted in the second frame can be located in such a position that the gripping jaws which are belonging to the ends of the jaw bars which have been attached to said articulating points locate centric in relation to said vibrators and suspension means. 1. A hammering device which can be coupled to a working machine , comprising a first frame having attachment means for attaching to the working machine and to the frame coupled at a distance from each other locating series suspensions means , via which as a frame for vibrators working second frame can be attached to the first frame , wherein said second frame comprises vibrators and gripping jaws for gripping to an object , wherein the gripping jaws locate on turning jaw bars wherein said bars can be moved by means of hydraulic cylinder and that the first frame is like a forking frame of U-form coupled to the attachment means , which has suspension means on inner surfaces of both forks , via which suspension means the second frame has been attached to the first frame ,wherein the second frame extends both backwards ...

AIR CONDITIONING DEVICE FOR VEHICLE

An external heat exchanger and the accumulator tank are disposed in the circulation path of a heat medium. In the air conditioner for a vehicle, the external heat exchanger is disposed in a sideways position between member front ends of a pair of left and right side members, extending in the vehicle longitudinal direction, with the heat-exchanging surface facing forward in the vehicle. The accumulator tank is disposed in a front corner area that is formed in a position that is to the outside in the vehicle width direction from the member front end of one side member of the pair of left and right side members, and that is in front of a vehicle wheel house covering a front tire. 1. An air conditioning device for a vehicle , comprising:an external heat exchanger disposed in a circulation path of a heat medium and a in vehicle widthwise inside position between front ends of a pair of left and right side members extending in a vehicle longitudinal direction, and a heat-exchanging surface facing forward in the vehicle; andan accumulator tank disposed in the circulation path of the heat medium and in a front corner area in a position to an outside in a vehicle width direction from the front end of one of the pair of left and right side members, in front of a vehicle wheel house covering a front tire, and inside in the vehicle width direction of the position of a tire center axis of the front tire in the vehicle wheel house.2. (canceled)3. The air conditioning device for a vehicle according to claim 1 , whereinthe accumulator tank is disposed in a position that is rearward in the vehicle of a bumper stay, the bumper stay bridging the front ends of the pair of left and right side members in the vehicle width direction.4. The air conditioning device for a vehicle according to claim 1 , whereinat least one of the side members includes a lower extension additional member extending below the vehicle and connecting with a suspension member, anddisposes the accumulator tank in a ...

GAS TURBINE ENGINE INTEGRATED HEAT EXCHANGER

A heat exchanger apparatus including at least one cooling channel formed within and about an engine booster lip or an engine nacelle and configured to receive a flow of a circulating working fluid; and at least one fluid port communicating with the at least one cooling channel and an exterior of the engine booster lip or the engine nacelle. 1. A heat exchanger apparatus comprising:at least one cooling channel formed within and about an engine booster lip or an engine annular fan casing and configured to receive a flow of a circulating working fluid; andat least one fluid port communicating with the at least one cooling channel and an exterior of the engine booster lip or the engine annular fan casing.2. The heat exchanger apparatus of claim 1 , wherein the at least one cooling channel is embedded within the booster lip and in thermal contact with a root of at least one fan outlet guide vane or fan outlet strut.3. The heat exchanger apparatus of claim 2 , wherein a plurality of cooling channels are embedded within and about the booster lip and wherein each of the plurality of cooling channels is in thermal contact with the root of at least one fan outlet guide vane or fan outlet strut.4. The heat exchanger apparatus of claim 2 , wherein the at least one cooling channel is configured about at least a portion of a circumference of the engine booster lip.5. The heat exchanger apparatus of claim 4 , wherein the at least one cooling channel is configured about a complete circumference of the engine booster lip.6. The heat exchanger apparatus of claim 1 , wherein the at least one cooling channel is embedded within and about the engine annular fan casing and in thermal contact with a thermal plate on an outer surface of the engine annular fan casing.7. The heat exchanger apparatus of claim 6 , wherein the thermal plate is flush mounted to the outer surface of the engine annular fan casing.8. The heat exchanger apparatus of claim 6 , wherein the thermal plate is integrally ...

HYDRAULIC-POWERED AIR COMPRESSOR

A portable hydraulic-powered air compressor system detachably connected to a hydraulic power system of a vehicle may include a reciprocating compressor. The reciprocating compressor may include a compression cylinder, and a compressor piston assembly that may be movably disposed within the compression cylinder. Opposite sides of the compressor piston assembly may respectively define a rod chamber and a front chamber in an interior of the compression cylinder. The front chamber may include an air intake port. The compressor piston assembly may include a one-way valve that may be configured to fluidically connect the rod chamber and the front chamber in response to an air pressure in the front chamber being higher than an air pressure in the rod chamber. The hydraulic-powered air compressor system may further include a hydraulic actuating mechanism detachably connected to the hydraulic power system. The hydraulic actuating mechanism may be coupled to a piston rod of the compressor piston and may be configured to drive a reciprocating motion of the compressor piston within the compression cylinder. 1. A portable hydraulic-powered air compressor system detachably connected to a hydraulic power system of a vehicle , the air compressor system comprising: a compression cylinder; and', 'a compressor piston assembly movably disposed within the compression cylinder, opposite sides of the compressor piston assembly respectively defining a rod chamber and a front chamber in an interior of the compression cylinder, the front chamber comprising an air intake port, the compressor piston assembly comprising a one-way valve, the one-way valve configured to fluidically connect the rod chamber and the front chamber responsive to an air pressure in the front chamber being higher than an air pressure in the rod chamber; and, 'a reciprocating compressor comprisinga hydraulic actuating mechanism detachably connected to the hydraulic power system, the hydraulic actuating mechanism coupled ...

COOLING MODULE FOR VEHICLE

A cooling module for a vehicle may include a main radiator, a sub-radiator, a water-cooled condenser and an air-cooled condenser. The main radiator may be disposed at a front region of an engine room and supplies cooled cooling water to an engine. The sub-radiator may be disposed substantially in parallel with the main radiator and in front of the main radiator, have header tanks at both sides and supply the cooled cooling water to an intercooler or electric components. The water-cooled condenser may be disposed in one of the header tanks and primarily condenses a refrigerant by using the cooling water as a heat exchange medium. The air-cooled condenser may be in fluidic communication with the water-cooled condenser to be introduced with the refrigerant condensed in the water-cooled condenser and may be disposed in front of the sub-radiator to secondarily condense the refrigerant. 1. A cooling module for a vehicle , comprising:a main radiator which is disposed at a front region of an engine room with respect to a longitudinal direction of the vehicle, and supplies cooled cooling water to an engine through heat exchange with external air;a sub-radiator which is disposed substantially in parallel with the main radiator and in front of the main radiator, has header tanks at both sides of the sub-radiator and supplies the cooled cooling water to an intercooler or one or more electric components through heat exchange with the external air, wherein one header tank includes an inlet into which cooling water is introduced and an outlet from which the cooling water is discharged, and a diaphragm is disposed inside the sub-radiator and prevents the cooling water introduced through the inlet and discharged through the outlet from being mixed;a water-cooled condenser which is disposed in the other header tank of the header tanks and primarily condenses a refrigerant by using the cooling water as a heat exchange medium; andan air-cooled condenser which is in fluidic ...

COOLING SYSTEM FOR VEHICLE AND CONTROL METHOD THEREFOR

Disclosed are a cooling system for a vehicle and a control method for a cooling system. The cooling system may include an electric water pump configured to circulate coolant, an active air flap apparatus configured to actively control an air amount introduced into an engine room of the vehicle, a radiator configured to supply the coolant to an engine, a fan configured to cool the coolant of the radiator, and a control unit configured to control the electric water pump, the air flap apparatus, and the fan depending on a driving state and condition of the vehicle, in which the radiator is directly connected to the electric water pump without a thermostat or a control value being interposed between the radiator and the electric water pump. 1. A cooling system for a vehicle , comprising:an electric water pump configured to circulate a coolant;an air flap apparatus configured to actively control an air amount introduced into an engine room of the vehicle;a radiator configured to supply the coolant to an engine;a fan configured to cool the coolant of the radiator; anda control unit configured to control the electric water pump, the air flap apparatus, and the fan depending on a driving state and condition of the vehicle,wherein the radiator is directly connected to the electric water pump without a thermostat or a control value being interposed between the radiator and the electric water pump.2. The system of claim 1 , wherein:the thermostat and/or the electronic control valve are removed from the vehicle to which the cooling system is applied.3. The system of claim 1 , wherein:the control unit receives a signal associated with the air flap apparatus from an air flap control unit and receives a signal associated with the engine from an engine control unit (ECU).4. The system of claim 3 , wherein:the control unit controls the air flap apparatus to control a cooling air amount passing through the radiator and controls the electric water pump to control a coolant flow rate ...

Auxiliary Mobile Power System

The present disclosure is directed to a hydraulic vehicle power system. The auxiliary mobile power system may be configured to supply power to at least one auxiliary function and a primary hydraulic system for a vehicle. The auxiliary mobile power system may include a hydraulic pump configured to provide hydraulic pressure to the at least one auxiliary function and the vehicle's primary hydraulic system. The auxiliary mobile power system may also include a control valve connected to the hydraulic pump. The control valve may be configured to control the hydraulic pressure to the at least one auxiliary function and the primary hydraulic system for the vehicle. 1. A mobile auxiliary power system , comprising:a hydraulic pump configured to provide hydraulic pressure to at least one auxiliary function and a primary hydraulic system of a vehicle; anda control valve configured to control hydraulic pressure to the at least one auxiliary function and the primary hydraulic system of the vehicle.2. The auxiliary mobile power system as claimed in claim 1 , wherein the at least one auxiliary function includes at least one of: a compressed air system claim 1 , an electrical power system claim 1 , or a hydraulic powered tool.3. The auxiliary mobile power system as claimed in claim 1 , wherein the at least one auxiliary function further includes an auxiliary function control valve.4. The auxiliary mobile power system as claimed in claim 1 , wherein the auxiliary mobile power system is configured to provide power to the at least one auxiliary function and the primary hydraulic system at least partially simultaneously.5. The auxiliary mobile power system as claimed in claim 1 , wherein the auxiliary mobile power system is configured to prioritize the supply of power to the primary hydraulic system.6. The auxiliary mobile power system as claimed in claim 1 , wherein the auxiliary mobile power system is configured to provide power to at least two auxiliary power functions ...

HYDRAULIC DRIVE FOR EXECUTING A LINEAR MOVEMENT

A hydraulic drive for executing a linear movement includes a motor, a pump, a lifting cylinder having the one linearly movable piston and a cylinder housing with at least one first connection and at least one second connection, a spring arranged such that the piston can be extended or retracted when the spring is in the relaxed state, and at least one first valve with which the first connection and the second connection of the cylinder housing can be fluidly connected. At least one second valve connected in parallel with the first valve is further provided, wherein the first valve has a maximum volumetric throughflow which is greater than the maximum volumetric through-flow of the second valve. 116-. (canceled)17. A hydraulic drive for executing a linear movement comprising:a motor;a pump; a linearly movable piston and a cylinder housing having at least one first connection and at least one second connection;', 'a spring arranged such that the piston can be extended or retracted when the spring is in a relaxed state; and', 'at least one first valve with which the at least one first connection and the at least one second connection of the cylinder housing can be fluidly connected, wherein at least one second valve is connected in parallel with the at least one first valve, and wherein the at least one first valve has a maximum volumetric throughflow which is greater than a maximum volumetric throughflow of the at least one second valve., 'a lifting cylinder further comprising18. The hydraulic drive according to claim 17 , wherein the at least one first valve and the at least one second valve are spring-loaded claim 17 , electromagnetically adjustable directional valves.19. The hydraulic drive according to claim 17 , wherein the at least one first valve and the at least one second valve have a first switch position with a flow path so a fluidic connection can be established from the at least one first connection to the at least one second connection and a second ...

VALVE OPERATING DEVICE FOR INTERNAL COMBUSTION ENGINE

In an engine valve, a first sliding area formed at a valve head side in an outer face of a valve stem, and sliding along a stem guide, a second sliding area formed at an opposite side from the valve head side, and sliding along the stem guide, and a first small diameter area formed between the first sliding area and the second sliding area are formed. Further, in the engine valve, a length, in an axial direction of the valve stem, of the first sliding area abutting on the stem guide at a position where the engine valve is fully opened is longer as compared with a length, in the axial direction of the valve stem, of the second sliding area abutting on the stem guide at a position where the engine valve is fully closed. 1. A valve operating device for an internal combustion engine , comprising:an engine valve comprising a valve stem portion and a valve head portion connected to one end of the valve stem portion, the valve stem portion including a cylindrical sliding area sliding along a stem guide and a first small diameter area having a smaller diameter as compared with a diameter of the sliding area; anda valve drive device driving the engine valve between a fully opened position where a lift amount of the valve head portion becomes maximum to an opening side, and a fully closed position where the lift amount becomes minimum,wherein the sliding area includes a first sliding area between the valve head portion and the first small diameter area, and a second sliding area between the first small diameter area and the other end of the valve stem portion, anda length in an axial direction of the first sliding area abutting on the stem guide at the fully opened position is longer as compared with a length in an axial direction of the second sliding area abutting on the stem guide at the fully closed position.2. The valve operating device for an internal combustion engine according to claim 1 ,wherein the valve stem portion further includes a second small diameter area ...

ENGINE COOLING SYSTEM

Disclosed is an engine cooling system which comprises: a head-side circulation pathway through which coolant from a water pump is circulated via a water jacket of a cylinder head and an EGR cooler; a block-side circulation pathway through which the coolant from the water pump is circulated via a water jacket of a cylinder block; and a switching valve unit operable, during cold operation of the engine, to pass the coolant from the water pump, along the head-side circulation pathway, and, when a temperature of the engine is raised up to a predetermined value, to pass the coolant from the water pump, along not only the head-side circulation pathway but also the block-side circulation pathway. 1. A system for cooling an engine , the engine comprising a cylinder block , a cylinder head , an intake passage , an exhaust passage , an EGR passage connecting the exhaust passage to the intake passage to recirculate a part of exhaust gas to the intake passage therethrough , and an EGR cooler for performing heat exchange between exhaust gas in the EGR passage and coolant , each of the cylinder block and the cylinder head being provided with a water jacket through which coolant flows , the system comprising:a water pump for discharging the coolant;a head-side circulation pathway through which the coolant from the water pump is circulated via the water jacket of the cylinder head and the EGR cooler;a block-side circulation pathway through which the coolant from the water pump is circulated via the water jacket of the cylinder block; anda switching valve unit operable, during cold operation of the engine, to pass the coolant from the water pump, along the head-side circulation pathway, and, when a temperature of the engine is raised up to a predetermined value, to pass the coolant from the water pump, along not only the head-side circulation pathway but also the block-side circulation pathway.2. The system as defined in claim 1 , wherein the engine comprises: a supercharger ...

POST DRIVER APPARATUS

This disclosure pertains to a post driver apparatus of simplified and compact construction. The apparatus can be easily attached to a vehicle equipped with a universal quick attach hitch and having auxiliary hydraulics, for example a farm or construction vehicle. The apparatus includes a hydraulic motor that is driven by the auxiliary hydraulics of the vehicle to which the apparatus is attached. The hydraulic motor rotates a drive wheel of the apparatus which is operatively connected with a weight piston of the apparatus. Rotation of the drive wheel lifts and then drops the weight piston on each rotation of the drive wheel. With the apparatus positioned on the top end of a post, each time the weight piston is dropped it impacts the top of the post and drives the post downwardly. The apparatus is equipped with a safety feature that prevents rotation of the drive wheel from operatively raising the weight piston until the apparatus is positioned on top of a post and exerts a force on the top end of the post. 1. A post driver apparatus comprising:a housing having a length with a top end and an opposite bottom end and an interior bore extending through the housing between the top end and the bottom end, the housing having an opening at the bottom end, the opening providing access to the interior bore from an exterior environment of the housing through the opening;a piston mounted in the interior bore for reciprocating movement of the piston through the interior bore, the piston having a plurality of projections on a side of the piston;a shaft mounted on the housing for rotation of the shaft;a drive wheel attached to the shaft for rotation of the drive wheel with rotation of the shaft;a plurality of pins on the drive wheel, the plurality of pins being positioned on the drive wheel where, with the piston positioned in the interior bore adjacent the bottom end of the housing, rotation of the drive wheel causes the pins to come into engagement with the plurality of ...

Thermal Management Unit for Vehicle Powertrain

A thermal management unit for a vehicle powertrain includes an integrated oil heater, a control valve, and a pressure relief valve. A remote oil cooler is connected to fluid ports of the thermal management unit. Transmission oil is received into the thermal management unit and is directed to one or both of the transmission oil heater and the transmission oil cooler. A portion of the flow of oil can be internally bypassed through the pressure relief valve to maintain the pressure of the oil below a threshold. The flow of oil is directed through the control valve after having been heated and/or cooled, and the proportions of oil being directed through the oil heater and the oil cooler are determined by the temperature of the oil in the control valve. 1. A thermal management unit for a vehicle powertrain , comprising:a control valve operable to selectively route fluid between a valve outlet and first and second valve inlets;a first fluid port to receive a flow of oil from the vehicle powertrain;a second fluid port to deliver a flow of oil to the vehicle powertrain;a third fluid port fluidly connected to the first fluid port by way of a first flow path extending through the thermal management unit;a fourth fluid port fluidly connected to one of the first and second valve inlets by way of a second flow path extending through the thermal management unit;an integrated transmission oil heater having a fluid inlet manifold, a fluid outlet manifold, and a plurality of flow structures extending between the fluid inlet manifold and the fluid outlet manifold, wherein the fluid inlet manifold is fluidly connected to the first fluid port by way of a third flow path extending through the thermal management unit and the fluid outlet manifold is fluidly connected to the other of the first and second valve inlets by way of a fourth flow path extending through the thermal management unit;a fifth flow path extending between and fluidly connecting the second fluid port and the valve ...

Rotary Valve Assembly

Provided herein are rotary valve assemblies, engines, and corresponding methods. A rotary valve assembly may include a valve housing defining a cylindrical bore, an inlet, and an outlet. The valve assembly may further include an intake assembly and a throttle assembly arranged concentrically within the cylindrical bore of the valve housing, and the intake assembly and the throttle assembly may rotate independently of one another with respect to a longitudinal axis. During operation of the rotary valve assembly, the valve housing may permit fluid to enter the cylindrical bore of the valve housing via the inlet, the intake assembly may rotate to permit the fluid to flow through the at least one intake inlet port and the at least one throttle inlet port into the throttle body, and the intake assembly may permit the fluid to flow to the outlet from the throttle body. 1. A rotary valve assembly comprising:a valve housing defining a cylindrical bore, an inlet, and an outlet;an intake assembly configured to be at least partially received within the cylindrical bore of the valve housing, wherein the intake assembly comprises an intake body defining a cylindrical bore and having at least one intake inlet port and at least one intake chamber port; anda throttle assembly configured to be at least partially received within the cylindrical bore of the intake assembly, wherein the throttle assembly comprises a throttle body defining at least one throttle inlet port and at least one throttle chamber port;wherein the throttle assembly and the intake assembly are concentric with respect to a longitudinal axis,wherein the throttle assembly and the intake assembly are configured to rotate independently of one another about the longitudinal axis,wherein the at least one intake chamber port and the at least one throttle chamber port at least partially overlap in a longitudinal direction,wherein the at least one intake inlet port and the at least one throttle inlet port at least ...

DISTRIBUTOR HEAD FOR A SUCTION PUMP

A distributor head for a suction pump which includes a housing (), a pump port () configured to apply a negative pressure, and a plurality of hollow needles (). The hollow needles are fixed to the housing (), are connected in a liquid-tight manner to the pump port (), and are arranged parallel to and at a distance from one another. Individual connecting paths () of the hollow needles () to the pump port () include respective, independently operable control valves (). 2. Distributor head claim 1 , as claimed in claim 1 , wherein the plurality of hollow needles are each individually adjustable in vertical position.3. Distributor head claim 1 , as claimed in claim 1 , wherein the control valves are negative pressure-sensitive normally open valves.4. Distributor head claim 1 , as claimed in claim 1 , further comprising at least one telescopic rod arranged parallel to the hollow needles on the housing and configured to moveably guide the housing relative to an exterior plate.5. Distributor head claim 4 , as claimed in claim 4 , further comprising an adjustable stop limiting a travel path of the housing relative to the plate.6. Distributor head claim 4 , as claimed in claim 4 , wherein the telescopic rod comprises a damping mechanism. This is a Continuation of International Application PCT/EP2017/000848, which has an international filing date of Jul. 14, 2017, and which claims the priority of German Patent Application 10 2016 118 183.8, filed Sep. 27, 2016. The disclosures of both applications are incorporated in their respective entireties into the present Continuation by reference.The invention relates to a distributor head for a suction pump, comprisinga housing, a pump port for applying a negative pressure and a plurality of hollow needles, which are fixed to the housing, are connected in a liquid tight manner to the pump port, and are arranged parallel to and at a distance from one another.A test apparatus for gravimetric testing of multi-channel pipettes is known ...

COOLING APPARATUS FOR INTERNAL COMBUSTION ENGINE AND MOTORCYCLE INCLUDING THE SAME

A cooling apparatus includes a cooling passage provided in an internal combustion engine, a water pump, a radiator, a first passage through which the water pump and the cooling passage are connected to each other, a second passage through which the cooling passage and the radiator are connected to each other, a third passage through which the radiator and the water pump are connected to each other, and an oil cooler passage provided with an oil cooler. An in-line type thermostat is provided at any position in a portion of a cooling water circuit which leads from a first end portion to a second end portion via the second passage, the radiator, and the third passage. 1. A cooling apparatus for cooling an internal combustion engine of a motorcycle , the cooling apparatus comprising:a cooling passage provided in the internal combustion engine and including an inlet through which cooling water flows in, and an outlet through which the cooling water flows out;a water pump including a discharge port through which the cooling water is discharged, and a suction port through which the cooling water is drawn in;a radiator including an inlet through which the cooling water flows in, and an outlet through which the cooling water flows out;a first passage connected to the discharge port of the water pump and the inlet of the cooling passage;a second passage connected to the outlet of the cooling passage and the inlet of the radiator;a third passage connected to the outlet of the radiator and the suction port of the water pump;an oil cooler passage including a first end portion connected to the second passage and a second end portion connected to the third passage, the oil cooler passage including an oil cooler; anda thermostat provided in a portion of the second passage between the first end portion and the inlet of the radiator, in the radiator, or in a portion of the third passage between the outlet of the radiator and the second end portion, the thermostat being arranged to ...

Control of Remote Demolition Robot

A remote demolition robot (10) comprising a controller (17), drive means (14), an arm member (11) movably arranged on a tower (10a) rotatably arranged on a body (11b) of the remote demolition robot (10) and a remote control (22) for providing commands, that are interpreted by the controller (17) causing the controller (17) to control the operation of the remote demolition robot (10), wherein the remote control (22) comprises a first joystick (24a) and a second joystick (24b), wherein the remote control (22) is characterized in that each joystick (24) is provided with a thumb control switch (26).

POWERTRAIN COOLING SYSTEM WITH COOLING AND HEATING MODES FOR HEAT EXCHANGERS

A cooling system has an engine heat exchanger in thermal communication with engine oil in an engine. A transmission heat exchanger is in thermal communication with transmission oil in a transmission. A pump has a pump inlet and a pump outlet. A valve assembly is in fluid communication with the pump outlet and has a first and a second position that at least partially establish different coolant flow modes through a plurality of coolant flow passages. The valve assembly has a first inlet that receives coolant that flows from the pump outlet, to an engine inlet, then through the engine to an engine outlet. The valve assembly has a second inlet that receives coolant that flows from the pump outlet and bypasses the engine. The valve assembly has a single outlet that directs coolant flow to at least one of the engine heat exchanger and the transmission heat exchanger. 1. A cooling system for a powertrain; wherein the powertrain has an engine and a transmission driven by the engine , the cooling system comprising:an engine heat exchanger in thermal communication with engine oil in the engine;a transmission heat exchanger in thermal communication with transmission fluid in the transmission;a pump having a pump inlet and a pump outlet;a plurality of coolant flow passages through which coolant is pumped by the pump; a first inlet that receives coolant that flows from the pump outlet, to an engine inlet, then through the engine to an engine outlet;', 'a second inlet that receives coolant that flows from the pump outlet and bypasses the engine; and', 'a single outlet that directs coolant flow to at least one of the engine heat exchanger and the transmission heat exchanger, and then back to the pump inlet; and, 'a valve assembly in fluid communication with the pump outlet and having a first and a second position that at least partially establish different coolant flow modes through the coolant flow passages; wherein the valve assembly haswherein the first position of the valve ...

PUMP DEVICE AND HYDRAULIC ACTUATOR

A first case accommodating a first check valve of a switching valve switching a flow of hydraulic fluid to one of a first chamber and a second chamber of a cylinder device, an inside of which is segmented into the first chamber and the second chamber by a piston, and a second case which is stacked on the first case and in which a first actuation valve of the switching valve is accommodated to be displaced in a direction of stacking the first case are provided. A first valve chamber, accommodating the first actuation valve, of the second case has a pressure receiving surface on which pressure of hydraulic fluid that acts on the first valve chamber acts toward the first case. 1. A pump device comprising:a first case accommodating a check valve of a switching valve switching a flow of hydraulic fluid to one of a first chamber and a second chamber of a cylinder device, an inside of which is segmented into the first chamber and the second chamber by a piston; anda second case stacked on the first case and in which an actuation valve of the switching valve is accommodated to be displaced in a direction of stacking the first case,wherein a valve chamber, accommodating the actuation valve, of the second case has a surface on which pressure of the hydraulic fluid that acts on the valve chamber acts toward the first case.2. A pump device comprising:a first case accommodating a check valve of a switching valve switching a flow of hydraulic fluid to one of a first chamber and a second chamber of a cylinder device, an inside of which is segmented into the first chamber and the second chamber by a piston; anda second case which is stacked on the first case and in which an actuation valve of the switching valve is accommodated to be displaced in a direction of stacking the first case,wherein a portion, facing the first case, of a valve chamber, accommodating the actuation valve, of the second case has a diameter smaller than an inner diameter of a portion of the valve chamber ...

HANDHELD PNEUMATIC TOOLS HAVING PRESSURE REGULATOR

A handheld pneumatic tool includes an air supply port and a pressure regulator. The pressure regulator is configured to regulate the pressurized air and discharge regulated, pressurized air at a substantially constant pressure. 1. A handheld impact driver comprising:an air supply port configured for connection to an external source of pressurized air;a manifold assembly positioned downstream of the air supply port, the manifold assembly comprising a manifold, the manifold defining a manifold inlet port, the manifold inlet port being in selective fluid communication with the air supply port; anda pressure regulator positioned downstream of the manifold assembly, the pressure regulator comprising a housing and a diaphragm assembly movably coupled with the housing, the housing and the diaphragm assembly cooperating to define a discharge chamber, the housing at least partially defining an inlet chamber, the inlet chamber and the discharge chamber being in at least intermittent fluid communication; wherein:when the manifold assembly is in a first configuration, the manifold inlet port is in fluid communication with the inlet chamber defined by the pressure regulator to permit the flow of pressurized air to the inlet chamber, the pressure regulator being operable to regulate the pressurized air and discharge regulated, pressurized air at a substantially constant, predetermined pressure; andwhen the manifold assembly is in a second configuration, the pressure regulator is bypassed.2. The handheld impact driver of claim 1 , wherein:the manifold assembly further comprises a first porting valve and a second porting valve, each of the first porting valve and the second porting valve being rotatably coupled with the manifold and being rotatable between a first position and a second position;when the manifold assembly is in the first configuration, each of the first porting valve and the second porting valve is in the first position; andwhen the manifold assembly is in the ...

HYDRAULIC PERCUSSION APPARATUS EQUIPPED WITH A SEALING DEVICE

This hydraulic percussion apparatus, includes a guide body; a striking piston which is slidably mounted inside the guide body; a sealing device which is mounted in an annular retaining groove provided on the guide body so as to produce a sealing between a first fluid passage and a second fluid passage. The sealing device comprises includes an inner sealing ring including an inner sealing portion provided with a sealing lip sealingly cooperating with the striking piston, an annular protection portion which is internally delimited by a converging protection surface converging towards the sealing lip, an annular groove which is disposed between the sealing lip and the converging protection surface, and a balancing channel comprising first and second ends opening respectively into the annular groove and into an outer surface of the annular protection portion.

STEPLESS VARIABLE AUTO STROKE HYDRAULIC BREAKER SYSTEM

Provided is a stepless variable auto stroke hydraulic breaker system capable of reducing impact energy reflected in the event of an idle blow by detecting a frequency of vibrations generated when a chisel breaks objects such as bedrocks using a vibration sensor, operating according to a short stroke if the frequency of vibrations does not exceed a preset frequency, and automatically switching the short stroke into a long stroke if the frequency of vibrations exceeds the preset frequency. The breaker system includes a vibration sensor configured to detect vibrations generated when a chisel breaks rocks, a transmitter provided with the vibration sensor and configured to transmit signals generated from the vibration sensor, a receiver configured to receive the signals transmitted from the transmitter, and a stepless variable auto stroke hydraulic breaker controlled by a reception micro controller unit (MCU) of the receiver. 1. A stepless variable auto stroke hydraulic breaker system comprising:a vibration sensor configured to detect vibrations generated when a chisel breaks rocks;a transmitter provided with the vibration sensor and configured to transmit signals generated from the vibration sensor;a receiver configured to receive the signals transmitted from the transmitter; anda stepless variable auto stroke hydraulic breaker controlled by a reception micro controller unit (MCU) of the receiver.2. The stepless variable auto stroke hydraulic breaker system according to claim 1 , wherein the stepless variable auto stroke hydraulic breaker includes:a cylinder;a piston that is housed in the cylinder to axially reciprocate in the cylinder and is provided with a first piston face that is directed such that an applied pressure acts in a return stroke direction, a second piston face directed such that the applied pressure acts in a working stroke direction, and a circumferential recess located between the first piston face and the second piston face;a pressure conduit that ...

Percussion Device For A Hydraulic Rock Drilling Machine, Method Of Operation Of A Percussion Device And Hydraulic Rock Drilling Machine Including A Percussion Device

A percussion device for a hydraulic rock drilling machine () including, inside a cylinder (), a to and fro moveable impact piston (), which is provided with a land portion () for cooperation with a braking recess () in the cylinder () for the establishment of a braking chamber in advanced positions of the impact piston, wherein a throttle slit () is arranged to be established between the land portion () and the braking recess (). A pressure channel (), being connected to a pressure medium source, is arranged to debouch in the cylinder () between the piston guiding device () and a position of the land portion () in a most advanced position of the impact piston (). The invention also concerns a method and a hydraulic rock drilling machine. 114312114171211611. Percussion device for a hydraulic rock drilling machine () inducting , inside a cylinder () , a to and fro moveable impact piston () , which Is provided with a land portion () for co-operation with a braking recess () in the cylinder () for the establishment of a braking chamber in advanced positions of the impact piston relative to a normal impact position , as seen In an impact direction (R) of the percussion device , wherein a throttle slit () is established between wall portions of the land portion () and the braking recess () , and wherein the percussion device includes a piston guiding device () which is positioned in front of the braking recess () as seen in the impact direction (R) , wherein:{'b': 14', '4', '6', '12', '3, 'a pressure channel (), being connected to a pressure medium source, is arranged to debouch in the cylinder () between the piston guiding device () and a position of the land portion () In a most advanced position of the impact piston ().'}21413116. Percussion device according to claim 1 , wherein the pressure channel () is arranged to debouch in an equalizing chamber () being arranged between the braking recess () and the piston guiding device ().313. Percussion device according to ...

DEVICES AND METHODS FOR ACTUATING VALVES

Apparatuses and methods overcoming the technical challenges in actuating valves of reciprocating compressors used in oil and gas industry are provided. A valve assembly includes an actuator, a shaft, a collar and a thrust bushing. The actuator is configured to generate a displacement. The shaft configured to receive a rotating motion caused by the displacement and to penetrate inside a compressor body of the reciprocating compressor. The collar is located close to a location where the shaft penetrates inside the compressor body. The thrust bushing is located between the collar and the compressor body. The rotating motion actuates a valve closing member of a valve inside the compressor body. 1. A valve assembly useable in a reciprocating compressor for oil and gas industry , the valve assembly comprising:an actuator configured to generate a displacement;a shaft configured to receive a rotating motion caused by the displacement and to penetrate inside a compressor body of the reciprocating compressor;a collar located close to a location where the shaft penetrates inside the compressor body; anda thrust bushing located between the collar and the compressor body,wherein the rotating motion actuates a valve closing member of a valve inside the compressor body.2. The valve assembly of claim 1 , further comprising:one or more dynamic seals at an interface between the shaft and the compressor body at the location where the shaft penetrates inside the compressor body.3. The valve assembly of claim wherein:if the displacement is an angular displacement and the valve is a linear valve, the valve assembly further comprises a displacement transmission mechanism located inside the compressor body and configured to convert the angular displacement causing the rotating motion into a linear displacement to actuate the valve closing member of the linear valve, andif the actuator generates a linear displacement, the valve assembly further comprises a linear-to-rotational convertor ...

HYDRAULIC PERCUSSION DEVICE

The invention relates to a hydraulic percussion device intended to be fitted on a base vehicle, the device comprising: a housing comprising a closing plate; a power cell mounted in the housing; and a damper connecting the power cell and the closing plate, the damper comprising a body rigidly connected to the power cell opposite the closing plate; a chamber provided inside the body; and a closing piston which is movable inside the chamber and capable of abutting against the closing plate in order to seal the chamber, the chamber being intended to contain a compressible fluid for damping the movements of the power cell in relation to the housing. 1. A hydraulic percussion device intended to be installed on a carrier machine , the device comprising:a housing comprising a closing plate,a power cell mounted in the housing comprising an impact piston that is movable in translation, anda damper connecting the power cell and the closing plate in such a way as to transmit the displacement forces applied on the housing to the power cell,wherein the damper comprises:a body rigidly connected to the power cell opposite the closing plate,a chamber provided inside the body, anda closing piston which is movable inside the chamber and capable of abutting against the closing plate in order to seal the chamber,the chamber being intended to contain a compressible fluid for damping the movements of the power cell in relation to the housing.2. The device according to claim 1 , wherein at least one portion of the impact piston is intended to penetrate into the chamber in such a way that claim 1 , when the chamber contains a compressible fluid claim 1 , the displacement of the impact piston inside the chamber is capable of compressing the compressible fluid claim 1 , and the decompression of the compressible fluid is capable of displacing the impact piston.3. The device according to claim 1 , wherein the power cell is connected to a pressure accumulator comprising a hydraulic circuit and a ...

Combined heat and power system and method of operation

A combined heat and power (CHP) system. The CHP system including a combustion chamber with an air inlet and an exhaust. The combustion chamber configured to receive a hot secondary gas for combustion. A heat exchanger coupled to the particle separator receives mixed combustion gases and transfers heat to a secondary gas. The CHP system also includes a turbine configured to receive and compress a secondary gas and direct the compressed secondary gas to the heat exchanger, the turbine is also configured to receive a heated compressed secondary gas and expand it to generate work therefrom, the expanded heated secondary gas is also used for combustion and to regulate the temperature of the combustion gases entering the heat exchanger. A generator is connected to the drive shaft of the turbine and configured to generate electricity with the work generated therein.

WORK VEHICLE AND METHOD OF CONTROLLING WORK VEHICLE

A work vehicle includes an engine, an exhaust gas purification apparatus, a reducing agent tank, an engine coolant circuit, a branch path, a valve, an accepting portion, a valve control unit, a fan, a radiator, a thermostat, and a fan control unit. The valve control unit gives an instruction for an opening operation of the valve in response to the operation instruction from the operator accepted by the accepting portion. The fan generates cooling wind in an engine room. The radiator cools the engine coolant with the cooling wind. The thermostat is provided between the circulation path and the radiator and operates to open for supplying the engine coolant to the radiator when a temperature of the engine coolant is equal to or higher than a prescribed temperature. The fan control unit increases the number of rotations of the fan in response to the operation instruction.

Device for providing access to a space

The present invention relates to a device for providing access to a space, wherein the space is provided with an access element, such as for instance a door or window, wherein the device is provided with pressing means for exerting an impact force on one or more parts of the access element, such as for instance a door frame, comprising: an elongate housing, an elongate impact element for exerting the impact force on the access element which is adjustably movable between a starting position and an end position by means of first drive means, the first drive means are adapted to produce the impact force, the impact element is comprised in a first guide extending along the impact element, the impact element is provided from close to the first outer end up to at least an exit opening with a narrowed portion, the first drive means comprise a first fluid reservoir provided with a first fluid suitable for high-pressure application, wherein in the starting position of the impact element the first fluid is arranged compressed in the first fluid reservoir and the first fluid reservoir is in fluid communication with a first side of the first outer end of the impact element, first activating means for activating the device.

ROCK BREAKING DEVICE

The invention concerns a rock breaking device comprising a striking cell having at least one actuation chamber, a striking piston, and a hydraulic circuit comprising a hydraulic supply source having a High Pressure circuit and a Low Pressure circuit, and an actuator configured to connect the High Pressure circuit or the Low Pressure circuit to the actuation chamber so as to move the piston in translation in the striking cell in a normal movement area of which the limits are variable depending on the pressure difference between the High Pressure circuit and the Low Pressure circuit, the striking cell comprising depressurizing means configured to control the establishment of hydraulic communication between the High Pressure circuit and the Low Pressure circuit when the striking piston exits a predefined movement area. 1. A rock breaking device , comprising:a power cell having at least one actuating chamber,an impact piston translatable in the power cell, anda hydraulic circuit comprising:a hydraulic supply source having a High-Pressure circuit and a Low-Pressure circuit, andan actuator configured to connect the High-Pressure circuit or the Low-Pressure circuit to the actuating chamber such as to translate the piston in the power cell in a normal movement zone wherein the boundaries are variable depending upon the pressure difference between the High-Pressure circuit and the Low-Pressure circuit, wherein the power cell comprises depressurization means configured to command a placement in hydraulic communication of the High-Pressure circuit with the Low-Pressure circuit when the power cell leaves a predetermined movement zone.2. The device according to claim 1 , wherein the depressurization means comprise:a groove arranged on the impact piston, anda regulating portion connected on the one hand to the High-Pressure circuit and on the other hand to the Low-Pressure circuit, the regulating portion being closed off by the impact piston when the impact piston is movable in ...

PERCUSSION APPARATUS

This percussion apparatus includes a body; a tool including a mounting portion slidably mounted in the body; and a striking piston mounted so as to be alternately displaced within the body and configured to strike the mounting portion. The mounting portion of the tool includes an annular retaining rib including a first bearing surface configured to cooperate with a first stop surface provided on the body so as to limit the displacement stroke of the tool towards the striking piston, and a second bearing surface opposite to the first bearing surface and configured to cooperate with a second stop surface provided on the body so as to limit the displacement stroke of the tool opposite to the striking piston and to retain the mounting portion of the tool in the body. 1. A percussion apparatus , including at least:a body comprising a first body portion and a second body portion,a tool including a mounting portion slidably mounted in the second body portion, the mounting portion being provided with a striking surface, anda striking piston mounted so as to be alternately displaced within the first body portion, and configured to strike the striking surface of the mounting portion,the mounting portion of the tool including an annular retaining rib including a first bearing surface configured to cooperate with a first stop surface provided in the second body portion so as to limit the displacement stroke of the tool towards the striking piston, and a second bearing surface opposite to the first bearing surface and configured to cooperate with a second stop surface provided in the second body portion so as to limit the displacement stroke of the tool opposite to the striking piston and to retain the mounting portion of the tool in the second body portion,characterized in that the percussion apparatus further includes:a first guide element and a second guide element mounted in the second body portion, and configured to slidably guide the mounting portion of the tool, the first ...

BLOW-BY GAS RETURN STRUCTURE

An improved blow-by gas return structure minimizes the occurrence of a drawback caused by freezing at a low temperature by bringing a state where freezing minimally occurs in a blow-bay gas passage such as a pipe disposed outside an engine. The blow-by gas return structure is configured such that a blow-by gas is introduced into an intake manifold through an inner passage formed in a head cover. The blow-by gas return structure includes an outer pipe which connects a blow-by gas outlet of the head cover and a blow-by gas inlet of a main pipe of the intake manifold in a communicable manner, and a temperature elevating mechanism configured to elevate a temperature of the blow-by gas inlet. The temperature elevating mechanism is configured such that a cooling water transfer passage is formed in a portion of the blow-by gas inlet of the main pipe. 1. A blow-by gas return structure configured such that a blow-by gas in a crankcase is introduced into an intake passage through a cover inner passage formed in a head cover , the blow-by gas return structure comprising:a pipe which connects a blow-by gas outlet of the head cover and a blow-by gas inlet of the intake passage in a communicable manner; anda temperature elevating mechanism configured to elevate a temperature of the blow-by gas inlet.2. The blow-by gas return structure according to claim 1 , wherein the temperature elevating mechanism is configured such that a cooling water transfer passage is formed in a portion of the blow-by gas inlet of the intake passage.3. The blow-by gas return structure according to claim 2 , wherein the intake passage is an intake manifold claim 2 , the blow-by gas inlet has a communication hole which penetrates a structural wall forming the intake manifold such that the communication hole opens to the inside and the outside of the structural wall claim 2 , and the transfer passage is formed on a wall outer side of the structural wall.4. The blow-by gas return structure according to claim ...

Impact Hammer

A hydraulic, pneumatic, gasoline, diesel, or electric tool may include a spindle that is adapted for rotational movement. A swing arm may be coupled to the spindle such that rotational motion of the spindle is transferred to the swing arm. The swing arm makes contact with a piston such that the rotational motion causes the piston to move along a linear path. The piston may interact with an energy storage medium when the swing arm moves the piston in the first direction, causing energy to be stored in the energy storage medium. As the swing arm continues to rotate, the swing arm may lose contact with the piston, thus allowing the energy storage medium to urge the piston in a second direction opposite the first direction to strike an anvil. The swing arm may be a multiple roller swing arm. The energy storage medium may be a compound spring assembly. 1. An impact hammer , comprising:a spindle adapted for rotational movement; a first end, the first end comprising a first swing arm to piston engagement roller; and', 'a second end, the second end comprising a second swing arm to piston engagement roller; and, 'a multiple roller swing arm comprisinga piston comprising a piston contact surface adapted to contact the first swing arm to piston engagement roller such that rotation of the multiple roller swing arm causes the piston to move in a first direction along a linear path, the piston interacting with an energy storage medium when the multiple roller swing arm moves the piston in the first direction causing energy to be stored in the energy storage medium;wherein continued rotation of the multiple roller swing arm causes the first swing arm to piston engagement roller to lose contact with the piston contact surface allowing the energy storage medium to urge the piston in a second direction opposite the first direction allowing the piston to strike an anvil impact surface for a first strike during a single rotation of the spindle;wherein continued rotation of the multiple ...

Hydraulic Hammering Device

A hydraulic hammering device includes a piston front chamber and a piston rear chamber defined between an outer circumferential surface of the piston and an inner circumferential surface of the cylinder and disposed separately from each other at front and rear, respectively, in an axial direction. A switching-valve mechanism drives the piston by switching at least one of the piston front chamber and the piston rear chamber into communication with at least one of a high pressure circuit and a low pressure circuit. An acceleration piston is disposed behind the piston and is configured to come into contact with the piston during a retreat stroke thereof to urge the piston forward, in which a timing where the acceleration piston itself starts to come in contact with the piston is set to be earlier than a timing where the piston is braked by the switching-valve mechanism. 1. A hydraulic hammering device comprising:a cylinder;a piston slidingly fitted in the cylinder;a piston front chamber and a piston rear chamber which are defined between an outer circumferential surface of the piston and an inner circumferential surface of the cylinder and disposed separately from each other at front and rear, respectively, in an axial direction of the piston;a switching-valve mechanism driving the piston by switching at least one of the piston front chamber and the piston rear chamber into communication with at least one of a high pressure circuit and a low pressure circuit; anda piston control port arranged between the piston front chamber and the piston rear chamber of the cylinder and connected to/disconnected from the high pressure circuit and the low pressure circuit by forward movement/backward movement of the piston, the switching-valve mechanism being driven by pressurized oil supplied/discharged from the piston control port,wherein the hydraulic hammering device comprises an urging unit disposed behind the piston and configured to come in contact with the piston during a ...

APPARATUS AND METHOD FOR DETECTING SHORTAGE OF COOLING WATER IN VEHICLE

In a urea injection system of a vehicle, to detect the shortage of the cooling water by using an electric water pump (EWP) to cool a dosing injector during the running of the vehicle engine, the apparatus for detecting shortage of the cooling water in the vehicle includes a urea injector that injects urea into an exhaust pipe of the vehicle, a pump that cools the urea injector, and a controller that applies a reference current to the pump, measures a time taken until a revolutions per minute (RPM) of the pump reaches a reference RPM, and detects the shortage of the cooling water in the pump by comparing the measured time and a reference time. 1. An apparatus for urea injection in a vehicle , the apparatus comprising:a urea injector configured to inject urea into an exhaust pipe of the vehicle;a pump configured to circulate cooling water for cooling the urea injector using the cooling water; anda controller configured to apply a reference current to the pump, measure a time taken until a revolutions per minute (RPM) of the pump reaches a reference RPM, and determine the shortage of the cooling water in the pump based on the measured time and a reference time.2. The apparatus of claim 1 , wherein the controller is configured to determine that the cooling water is insufficient in the pump when the measured time is not within a range preset based on the reference time.3. The apparatus of claim 1 , wherein the controller is configured to access a vehicle network to collect stage information of a gear shifter and position information of an accelerator pedal.4. The apparatus of claim 1 , wherein the controller is configured to access a vehicle network to collect stage information of a gear shifter claim 1 , and further configured to apply the reference current to the pump in a state that the gear shifter is in a neutral stage.5. The apparatus of claim 1 , wherein the controller is configured to access a vehicle network to collect stage information of an accelerator pedal ...

Method and device for influencing a compressor inlet valve

The control device (12) acts on the closure element (7) of the compressor suction valve (6) over part of the crank rotation, to provide forced opening of the valve shortly before reaching the pressure equalisation between the cylinder space and the suction space of the compressor. The forced opening is effected at a crank angle of between 0 and 20 degrees before reaching the pressure equalisation point. The control device may employ a hydraulic control cylinder with monitoring of the pressure for periodic opening of the closure element for indirect monitoring of the opening rate.

Improvements in reciprocating motors for actuation by a fluid supplied at substantially constant pressure

784,684. Engine valve-gear. KAMMER, G. S. Nov. 29, 1955 [Aug. 31, 1954], No. 25311/54. Class 122 (2). [Also in Group XXIX] At each end of a stroke of a piston 11 a plunger 29 on the piston rod enters a space in a plug 6 which closes the cylinder bore. With continued motion of the piston the fluid in the space is compressed until a shoulder 31 defining the end of a reduced portion 30 of the piston rod uncovers a duct 23 and fluid passes through this duct, past a valve 26 and through a duct 22 into a cavity 18 in a valve spool 13. The valve spool is thus driven into its other end position giving the reverse stroke. Each duct 22 is formed in a plug 19 closing the valve bore and passes through an extension 20 of the plug, the end of the extension remaining inside the cavity 18 for all positions of the valve spool.

Hammering device, controlled with pressure fluid

FIELD: mining. ^ SUBSTANCE: invention refers to hammering devices. The device consists of a case, of a tool installed in the case and designed to perform length travels relative to the case, of means for pressure fluid supply into the device and for pressure fluid withdrawing to a tank of pressure fluid, of means for generation of a mechanical surge in the tool by means of applying pressure of fluid, and of a transmitting piston. A charging pressure chamber is assembled from the side of the transmitting piston facing the tool; and a working pressurising chamber is assembled from the back side of the transmitting piston. Means for generating a mechanical surge contain a source of pressure fluid connected with the working pressurising chamber and designed to maintain pressure in the working pressurising chamber; they also contain facilities for intermittent supply of pressure fluid into the charging pressure chamber. The facilities for intermittent supply of pressure fluid into the charging pressure chamber facilitate travel of the transmitting piston in the direction to the working pressurising chamber and alternately facilitate quick discharge of pressure fluid from the charging pressure chamber. Also, created by pressure of compressed pressure fluid in the working pressurising chamber and by working fluid, flowing into the said chamber from the source of pressure fluid, force facilitates travel of the transmitting piston in the direction of the tool. ^ EFFECT: increased frequency of impacts of device. ^ 7 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 353 508 (13) C2 (51) МПК B25D 9/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006133905/02, 22.02.2005 (24) Дата начала отсчета срока действия патента: 22.02.2005 (45) Опубликовано: 27.04.2009 Бюл. № 12 (56) Список документов, цитированных в отчете о поиске: WO 03004822 A1, 16.01.2003. SU 1028840 A1, 15.07.1983. RU ...

空气马达

本发明提供一种空气马达（10），其能够接收压缩空气以被驱动。空气马达（10）包括气门组件（11），气门组件（11）具有整体结构的底座（12）。底座（12）具有相对的侧面（13），在该侧面上密封地附接有盖（14），盖（14）与柔性隔膜（15）协作以提供工作室（15，16）。

冲击锤

本发明冲击锤涉及石化设备领域，具体涉及冲击锤，包括气缸外缸和活塞杆，所述气缸外缸的一端连接有气缸端盖，另一端连接有一密封头，所述密封头中心处设置有一通孔，所述活塞杆一端滑动设置在气缸外缸内且连接有一活塞，另一端穿过密封头上的通孔伸出气缸外缸，所述活塞与气缸外缸气密连接，所述活塞杆为中空活塞杆；本发明结构简单，使用方便，利用从第一气孔进入的高压气体推动活塞向冲击头运动，直至冲击头与工件相抵，高压气体通过通气孔进入压力气腔内，实现储气加载，随着不断有高压气体进入，芯锤最终朝向冲击头高速运动，并将冲击力通过冲击头传递给工件。

液压式冲击装置

一种液压式冲击装置，在不变更油压回路配置并且维持冲击能量的同时，使活塞冲程短冲程化来增大冲击输出。所述液压式冲击装置具备：活塞前室(110)和活塞后室(111)，划分在活塞(200)的外周面和气缸(100)的内周面之间，并沿轴向的前后隔开配置；切换阀机构(130)，将活塞前室(110)和活塞后室(111)中的至少一方切换至高压回路(101)和低压回路(102)中的至少一方而驱动活塞；以及增速活塞(410)，设置于活塞后方，在其后退行程的中途抵接于活塞而对活塞(200)向前方施力，增速活塞(410)被设定为自身于活塞开始抵接的定时比活塞(200)通过切换阀机构(130)受到制动的定时早。

Stepless variable auto stroke hydraulic breaker system

본 발명은 치즐이 암반을 포함하는 파쇄 대상물을 파쇄할 시에 발생하는 진동을 진동센서를 이용하여 진동횟수를 감지하고 상기 진동횟수가 선정된 횟수를 초과하지 않으면 쇼트 스트로크(Short Stroke)로 작업을 진행하다가 상기 진동횟수가 선정된 횟수를 초과하면 쇼트 스트로크에서 롱 스트로크(Long Stroke)로 자동 전환시킴으로써, 공타시 반사되는 타격에너지를 저하시킬 수 있는 무단 가변 자동 스트로크 유압 브레이커 시스템에 관한 것으로, 치즐(308)이 암반을 포함하는 파쇄 대상물을 파쇄할 시에 발생하는 진동을 감지하기 위한 진동센서(110)와; 상기 진동센서(110)를 구비하고 상기 진동센서(110)로부터 발생된 신호를 전송하기 위한 송신부(100)와; 상기 송신부(100)에서 전송된 신호를 수신하기 위한 수신부(200); 및 상기 수신부(200)의 수신 MCU(240)에 의해 제어되는 무단 가변 자동스트로크 유압 브레이커(300);로 구성되고, 상기 무단 가변 자동스트로크 유압 브레이커(300)는 실린더(301)와, 상기 실린더(301) 내에 수용되어 내부에서 축방향으로 왕복운동하고, 인가된 압력이 복귀 스트로크 방향으로 작용하도록 배향된 제1 피스톤 면(302a)과, 인가된 압력이 작동 스트로크 방향으로 작용하도록 배향된 제2 피스톤 면(302b) 및, 상기 제1 피스톤 면(302a)과 제2 피스톤 면(302b) 사이에 위치되는 원주홈(303)을 구비한 피스톤(302)과, 상기 실린더(301)에 연결된 출구를 통하여 작동 압력을 제공하기 위한 압력도관(312)과, 상기 실린더(301)에 연결된 출구를 통하여 압력을 감압하기 위한 감압복귀 도관(317)과, 제어 플런저(309a)가 내부에 위치되고, 상기 제어 플런저(309a)를 복귀 스트로크 위치로 보내기 위한 작은 제어 플런저면(309b) 및, 상기 제어 플런저(309a)를 작동 스트로크 위치 및 복귀 스트로크 위치로 보내기 위한 큰 제어 플런저면(309c)을 구비한 제어밸브(309)와, 입력측이 스트로크 제어 압력도관(321)에 의해 유압펌프(311)에 연결된 압력 도관(312)에 연결되고, 출력측이 상기 제어 밸브(309)와 연결된 추가의 도관(322)에 의해 제어 밸브(309)용 전환 도관(313)에 연결되며, 하측이 수신 MCU(240)의 제어하게 작동되는 유압 제어 밸브(320)에 의해 유압펌프에 연결된 스트로크 밸브(319) 및 상기 스트로크 밸브(319)의 상부면(319a)에 설치되어 유압 변화에 따른 기계적 재설정 기능을 부여하기 위한 스프링(323)을 포함하는 것을 특징으로 한다. The present invention relates to a vibration sensor for detecting vibration generated when a crushing object including a rock is crushed by using a vibration sensor, and when the vibration frequency does not exceed the predetermined number of times, a short stroke Stroke hydraulic hydraulic breaker system capable of reducing the striking energy reflected at the time of striking by automatically switching from a short stroke to a long stroke when the number of times of vibration exceeds a predetermined number, 308) for detecting vibrations generated when the crushing object including the rock is crushed; A transmitter 100 having the vibration sensor 110 for transmitting a signal generated from the vibration ...

DEVICE FOR CREATING A RETURNING AND ACCESSIBLE MOVEMENT, VALVE BLOCK FOR HIM AND PNEUMATIC TOOL

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2004 128 390 (13) A B 25 D 9/20, 9/12 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2004128390/02, 01.03.2003 (71) Çà âèòåëü(è): ÀéÏèÒè Òåêíîëîäæèñ ÀÁ (SE) (30) Ïðèîðèòåò: 05.03.2002 EP 02445029.8 (72) Àâòîð(û): ÒÎÐÍÎÊÂÈÑÒ Ïèòåð (SE) (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 05.10.2004 (74) Ïàòåíòíûé ïîâåðåííûé: Ìîæàéñêèé Ìèõàèë Àíäðååâè÷ (86) Çà âêà PCT: EP 03/02118 (01.03.2003) Àäðåñ äë ïåðåïèñêè: 190000, Ñàíêò-Ïåòåðáóðã, íàá. Ìîéêè, 58, Ïàòåíòèêà, ïàò.ïîâ. Ì.À.Ìîæàéñêîìó (54) ÓÑÒÐÎÉÑÒÂÎ ÄËß ÑÎÇÄÀÍÈß ÂÎÇÂÐÀÒÍÎ-ÏÎÑÒÓÏÀÒÅËÜÍÎÃÎ ÄÂÈÆÅÍÈß, R U Ôîðìóëà èçîáðåòåíè 1. Óñòðîéñòâî äë ñîçäàíè âîçâðàòíî-ïîñòóïàòåëüíîãî äâèæåíè , ïðèâîäèìîå â äåéñòâèå ñæàòîé òåêó÷åé ñðåäîé, êîòîðîå ñîäåðæèò ïåðâóþ (5) è âòîðóþ (3) ÷àñòè, ñïîñîáíûå ïåðåìåùàòüñ â îñåâîì íàïðàâëåíèè îòíîñèòåëüíî äðóã äðóãà, è â êîòîðîì èìååòñ ðàáî÷à êàìåðà (7), âûïîëíåííà ñ âîçìîæíîñòüþ ïîâûøåíè â íåé äàâëåíè , ÷òî âûçûâàåò ïåðåìåùåíèå óêàçàííûõ ÷àñòåé îòíîñèòåëüíî äðóã äðóãà, èëè ñíèæåíè äàâëåíè ; â ïåðâîé ÷àñòè (5) èìååòñ ïåðâûé êàíàë (6) äë ïîäà÷è ðàáî÷åé òåêó÷åé ñðåäû â ðàáî÷óþ êàìåðó (7), à âî âòîðîé ÷àñòè (3) èìååòñ âòîðîé êàíàë (15) äë âûïóñêà òåêó÷åé ñðåäû èç ðàáî÷åé êàìåðû (7), ïðè÷åì êëàïàííûé áëîê (8), ñîäåðæàùèé êëàïàííûå çàòâîðû, óñòàíîâëåííûå ñ âîçìîæíîñòüþ ïåðåìåùåíè îòíîñèòåëüíî óêàçàííûõ ÷àñòåé, ïðåäíàçíà÷åí äë óïðàâëåíè ïîòîêîì òåêó÷åé ñðåäû â ïåðâîì è âòîðîì êàíàëàõ â çàâèñèìîñòè îò îòíîñèòåëüíîãî ïîëîæåíè óêàçàííûõ ÷àñòåé è, òàêèì îáðàçîì, äë óïðàâëåíè ïîâûøåíèåì äàâëåíè â ðàáî÷åé êàìåðå, îòëè÷àþùååñ òåì, ÷òî êëàïàííûé áëîê ñîäåðæèò ñðåäñòâà óïðàâëåíè , ïðèñîåäèíåííûå ïî ìåíüøåé ìåðå ê îäíîìó èç äâóõ êëàïàííûõ çàòâîðîâ, òàê ÷òî êëàïàííûå çàòâîðû îòäåëåíû äðóã îò äðóãà â îñåâîì íàïðàâëåíèè, â ðåçóëüòàòå ÷åãî âõîä òåêó÷åé ñðåäû â ðàáî÷óþ êàìåðó (7) èç ïåðâîãî êàíàëà îòäåëåí îò âûõîäà òåêó÷åé ñðåäû èç ðàáî÷åé êàìåðû (7) âî âòîðîé êàíàë (15). 2. Óñòðîéñòâî ïî ï. ...

Apparatus for providing reciprocation motion, valve unit for such apparatus and pneumatic tool with such apparatus

Изобретение относится к пневматическим инструментам, содержащим устройство для создания возвратно-поступательного движения, приводимого в действие сжатой текучей средой. Устройство для создания возвратно-поступательного движения содержит первую и вторую части, рабочую камеру и клапанный блок. Первая и вторая части устройства выполнены с возможностью перемещения друг относительно друга в осевом направлении. Рабочая камера выполнена с возможностью повышения в ней давления для перемещения указанных первой и второй частей устройства друг относительно друга или снижения в ней давления. Первая часть устройства имеет первый канал для подачи рабочей текучей среды в рабочую камеру. Вторая часть устройства имеет второй канал для выпуска текучей среды из рабочей камеры. Клапанный блок содержит клапанные затворы, установленные с возможностью перемещения относительно первой и второй частей устройства, и средства управления, присоединенные по меньшей мере к одному из двух клапанных затворов. Клапанные затворы отделены друг от друга в осевом направлении для обеспечения отделения входа текучей среды в рабочую камеру из первого канала от выхода текучей среды из рабочей камеры во второй канал. При этом клапанный блок обеспечивает управление потоком текучей среды в первом и втором каналах в зависимости от относительного положения первой и второй частей устройства, а также управление повышением давления в рабочей камере. В результате повышается эффективность работы, уменьшаются габариты устройства, обеспечивается простота и дешевизна его изготовления. 2 н. и 11 з.п. ф-лы, 5 ил. ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 317 191 (13) C2 (51) ÌÏÊ B25D 9/20 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2004128390/02, 01.03.2003 (72) Àâòîð(û): ÒÎÐÍÎÊÂÈÑÒ Ïèòåð (SE) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 01.03.2003 (73) Ïàòåíòîîáëàäàòåëü(è): ÀéÏèÒè Òåêíîëîäæèñ ÀÁ (SE) R U (30) Êîíâåíöèîííûé ...

Percussive device

A pressure-medium driven percussion device including a body, a drill shank gliding axially in the body for transmitting percussions to a drill rod and a percussion piston moving in the body for directing percussions axially to the drill shank. The drill shank includes a lifting piston which moves in a lifting cylinder within the body. The body further includes a channel passing to the lifting cylinder for supplying and removing pressure medium into and out of the lifting cylinder and seals located between the body and the drill shank at both sides of the lifting cylinder. An equalizing channel is located between each seal and a corresponding choking slot. A valve connects the equalizing channels to the source of pressure medium when a channel passing to lifting cylinder is connected to a pressure medium container, and, correspondingly, to the pressure medium container when the channel passing to the lifting cylinder is connected to the source of pressure.

Shocking hydraulic device

Device for hydraulic power supply of a rotary apparatus for percussive drilling

본 발명은, 충격식 회전 천공 장치에 유압을 공급하는 장치로서, 충격식 회전 천공 장치가, 일 방향 또는 다른 방향으로 회전 구동되는 천공 공구(3), 그 천공 공구를 회전 구동시키기 위한 회전 구동 장치(4), 상기 회전과는 독립하여 작동하는 충격 장치(5), 상기 천공 공구가 지면에 대한 지탱력을 발생할 수 있게 하는 유압 전진 장치(9), 및 유압 모터에 의해 구동되고 천공 암설(岩屑)을 빨아 올리기 위한 장치(14)를 포함하고, 여러 가지 유압 작동 부재들이 유압 흐름 분할기(16), 분배기(17, 18, 19, 20)들의 집합체, 및 장치 외부의 호스 또는 파이프들의 집합체를 통해 압력 하의 작동유원으로부터 구동되는 충격식 회전 천공 장치의 유압 공급 장치에 관한 것이다. 상기 유압 공급 장치는, 상기 회전 구동 장치(4)로부터의 복귀 흐름을 상기 충격 장치에 공급되는 흐름에 부가하도록, 상기 회전 구동 장치(4)의 복귀 파이프(22)를 상기 충격 장치(5)에의 공급 라인(23)에 접속하기 위해 장치 외부에 배치되는 파이프(24)를 포함한다. The present invention relates to a device for supplying hydraulic pressure to an impact rotary drilling machine, wherein the impact rotating punching device includes a drilling tool 3 which is rotationally driven in one direction or another direction, and a rotation driving device for rotationally driving the drilling tool. (4), an impact device (5) operating independently of the rotation, a hydraulic advancement device (9) that allows the drilling tool to generate bearing force against the ground, and a drilling motor Iii) a device 14 for sucking up, and various hydraulic actuating members are used to provide hydraulic flow divider 16, a collection of distributors 17, 18, 19, 20, and a collection of hoses or pipes outside the device. It relates to a hydraulic supply of an impact rotary perforation device driven from a working oil source under pressure. The hydraulic pressure supply device applies the return pipe 22 of the rotary drive device 4 to the impact device 5 so as to add the return flow from the rotation drive device 4 to the flow supplied to the impact device. A pipe 24 arranged outside the apparatus for connecting to the supply line 23. 충격식 회전 천공 장치, 천공 공구, 충격 장치 Impact rotary drill, drilling tool, impact device

Device for generating a reciprocating movement

본 문건은 왕복운동장치를 개시한다. 개시된 왕복운동장치의 실시예는, 메인캐비티와, 제1 서브캐비티와, 제2 서브캐비티를 구비한 실린더; 메인피스톤과, 제1 서브피스톤과, 제2 서브피스톤과, 제1 연결로드와, 제2 연결로드를 구비한 피스톤유닛; 상기 제1 서브캐비티와 인접한 상기 메인캐비티의 벽면에 형성되는 제1 에어배출홀과, 제1 에어공급홀; 상기 제2 서브캐비티와 인접한 상기 메인캐비티의 벽면에 형성되는 제2 에어배출홀과, 제2 에어공급홀; 내측에 에어이동홀이 형성되고, 상기 제1 연결로드의 외주에 슬라이딩되게 구비되는 제1 홀개폐디스크; 내측에 에어이동홀이 형성되고, 상기 제2 연결로드의 외주에 슬라이딩되게 구비되는 제2 홀개폐디스크; 및, 상기 피스톤유닛의 일측에 연장 형성되고, 일부분이 상기 실린더의 외부로 노출되는 출력로드;를 포함한다. 실시예에 따른 왕복운동장치는 구조와 구동 메커니즘이 매우 심플하다. 그에 따라, 종래 기술에 비하여, 내구성이 높고, 생산이 용이할 것으로 예측된다. This document discloses a reciprocating device. An embodiment of the reciprocating apparatus disclosed comprises a cylinder having a main cavity, a first sub-cavity, and a second sub-cavity; A piston unit having a main piston, a first sub-piston, a second sub-piston, a first connecting rod, and a second connecting rod; A first air vent hole formed in a wall surface of the main cavity adjacent to the first sub cavity; A second air vent hole formed in a wall surface of the main cavity adjacent to the second sub cavity; A first hole opening / closing disk having an air moving hole formed inside thereof and slidably mounted on an outer periphery of the first connecting rod; A second hole opening / closing disk having an air moving hole formed inside thereof and slidingly installed on an outer periphery of the second connecting rod; And an output rod extending from one side of the piston unit and partially exposed to the outside of the cylinder. The reciprocating motion device according to the embodiment has a very simple structure and a driving mechanism. Accordingly, it is expected that the durability is higher and the production is easier than the prior art.

Hydraulic shocking device

The intention is to be able to reduce the wear and permit easier starting. The percussion apparatus has a housing (1) to which a tool can be fastened. A piston (27) with a head (4) is axially movable in a reciprocating manner in a cylinder space in the housing. A sleeve-shaped, axially movable control valve (7) concentrically encloses the piston in such a way that the cylindrical inner face forms a cylindrical wall of the cylinder space surrounding the head. A front chamber (8) is formed in the cylinder space on the percussion side of the head. The front chamber (8) is separated from the control-valve space (6) of the control valve by a housing shoulder (28) surrounding the head. There is a passage (13) in the cylindrical surface of the head in order to produce a pressure-fluid connection between the front chamber and the control-valve space at the level of the end of the percussion movement of the piston. On the other hand, the pressure-fluid connection is interrupted near the end of the stroke movement of the piston (27) by the head (4) and by the shoulder (28). The pressure fluid required for the control of the control valve (7) can thus be obtained in a simple manner from the front chamber (8) of the cylinder space through the passage (13) in the piston head. <IMAGE>

Control for explosion engines by a pipe slide driven by a Maltese cross

Internal combustion engine of type injecting fuel into cylinders

Drive force transmitting device

Изобретение м.б, использовано в приводе клапанного узла дл  поршнеЙй х&amp;ж ку WfV-lfff- l-f i i&amp;r-V .Д ч. ..Н вого компрессора. Цель изобретени  - снижение габаритов устр-ва дл  передачи приводной силы с одного узла на другой. В корпусе (К) 1 с возможностью перемещени  между двум  крайними положени ми установлен первый узел, наход щийс  в зацеплении с уплотн ющей К 1 крышкой 3. Нл отвернутой от К I стороне крышка 3 находитс  в зацеплении с вторым узлом, установленным с возможностью поворота между двум  крайними положени ми и выполненным в виде пластинчатого клапанного элемента 5, перекрывакпцего отверсти  6, 7 К I. Первый узел 2 перемещаетс  в шлице 8 К 1 гидропнрв- мопргводом 9, в радиальном направле/7 3 (/ с с The invention, mb, is used in the drive of a valve assembly for a piston & x &w; wfV-lfff-l-f i i &amp; r-V. H. .. of the hr compressor. The purpose of the invention is to reduce the size of a device for transmitting driving force from one node to another. In the casing (K) 1, the first knot is engaged with movement between the two extreme positions, which is engaged with the lid 3, which seals K 1. On the side of the lid turned away from the I side, the lid 3 is engaged with the second node, which is rotatably mounted two extreme positions and made in the form of a plate valve element 5, blocking the 6, 7 K I hole. The first node 2 moves in the spline 8 K 1 with hydraulic drive 9, in the radial direction / 7 3 (/ s)

Impact device

INTERNAL COMBUSTION ENGINE WITH SUPPLY AND LIQUID COOLING

1. Двигатель (1) внутреннего сгорания с наддувом и жидкостным охлаждением, имеющийпо меньшей мере, одну головку (1a) блока цилиндров, которая может быть присоединена на торцевой стороне (1c) агрегата к блоку (1b) цилиндров, при этом для формирования контура (2) охлаждения предусмотрены насос (2a) для подачи охлаждающей жидкости, теплообменник и вентиляционный резервуар (2b), ипо меньшей мере, один турбонагнетатель (3) от отработавших газов, в котором компрессор и турбина расположены на одном и том же валу, который с возможностью вращения установлен в корпусе (4) подшипника с жидкостным охлаждением, причем для формирования системы жидкостного охлаждения корпус (4) подшипника присоединен к контуру (2) охлаждения двигателя (1) внутреннего сгорания посредством соединительной линии (5) и расположен между насосом (2a) и вентиляционным резервуаром (2b),при этомсоединительная линия (5) ведет в вентиляционный резервуар (2b), который, в дополнение к объему охлаждающей жидкости (2e), также содержит объем газа, в точке (2d), на которую воздействует охлаждающая жидкость.2. Двигатель (1) по п.1, в котором, в установленном положении двигателя (1) внутреннего сгорания, впускное отверстие (2d) соединительной линии (5) в вентиляционный резервуар (2b) находится на большей геодезической высоте, чем выпускное отверстие (4a) корпуса (4) подшипника, при этом к выпускному отверстию присоединена соединительная линия (5).3. Двигатель (1) по п.1 или 2, в котором соединительная линия (5) выполнена в виде восходящей линии.4. Двигатель (1) по п.1, в котором, в установленном положении двигателя (1) внутреннего сгорания, впускное отверстие (2d) соединительной линии (5) в вентиляционный резерв� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F01P 3/00 (11) (13) 2012 134 221 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012134221/06, 09.08.2012 (71) Заявитель(и): ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи (US) Приоритет(ы): (30) Конвенционный приоритет: 10 ...

Internal combustion engine with supercharging and liquid cooling

FIELD: engines. SUBSTANCE: invention can be used in internal combustion engines with supercharging and liquid cooling. Engine (1) has at least one cylinder block head (1a), which at unit end side (1c) is connected to cylinders block (1b). Cooling loop (2) consists of cooling liquid supply pump (2a), heat exchanger and ventilating vessel (2b). There is at least one supercharger (3), operating from exhaust gases, where compressor and turbine are arranged on one shaft. Supercharger (3) shaft is installed in liquid cooled bearing housing (4). To form liquid cooling system bearing housing (4) is connected to engine (1) cooling loop (2) by means of connecting line (5). Bearing housing (4) is located between pump (2a) and ventilating vessel (2b). Connecting line (5) leads into ventilating vessel (2b), which, in addition to cooling liquid (2e) volume, also contains volume of gas at point (2d), on which cooling fluid acts. Radiator (6) is located in connecting line (5) between pump (2a) and bearing housing (4). EFFECT: technical result consists in prevention of coolant intermittent feed into ventilating vessel. 14 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 607 143 C2 (51) МПК F01P 3/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2012134221, 09.08.2012 (24) Дата начала отсчета срока действия патента: 09.08.2012 (72) Автор(ы): БРИНКМАНН Бернд (DE), МЕРИНГ Ян (DE) 23.12.2016 Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: US 4958600 A, 25.09.1990 . US 10.08.2011 EP 11177050.9 4561387 A, 31.12.1985 . US 4928637 A, 29.05.1990. US 4107927 A, 22.08.1978. RU 2337248 C2, 27.10.2008. (45) Опубликовано: 10.01.2017 Бюл. № 1 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" 2 6 0 7 1 4 3 (43) Дата публикации заявки: 20.02.2014 Бюл. № 5 R U (73) Патентообладатель(и): ФОРД ...

Hydraulic drilling machine

A hydraulic drilling apparatus, especially a rock drill comprising a body, a cylinder in the body and a percussion piston reciprocating in the cylinder. A tool is connected to the body and a motor is provided for rotating the tool. A control valve is also provided for the percussion power. A control valve is also provided for regulating the motor speed. Both of these control valves are operated independently by one lever. A hydraulically operated flushing valve is also provided. A hydraulic pump and hydraulic channels coact to form a percussion circuit and a rotation circuit is parallelly coupled with the percussion circuit in relation to the hydraulic pump. A flushing valve circuit is controlled by the percussion circuit and a circuit for the free circulation of the hydraulic pump which is parallelly coupled with the percussion circuit in relation to the hydraulic pump. The circuits are connected to the hydraulic pump. The control valves are disposed in the body of the percussion apparatus with one of these valves being in the rotation circuit for controlling the flow rate which valve is a pressure-compensated flow control valve with a throttling control.

Thermoelectric generator of vehicle

열전현상을 이용하여 엔진의 배기가스의 열에너지를 전기에너지로 변환하는 차량용 열전발전기가 개시된다. 차량용 열전발전기는, 차량의 소음기의 양단을 폐쇄하며 배기가스가 유동하는 배기관의 외주면에 장착되고 상기 배기가스에 의해 가열되는 한 쌍의 고온부; 상기 한 쌍의 고온부의 각각의 외측면에 접촉되며 상기 배기관의 외주면에 장착되어 상기 한 쌍의 고온부에 의해 일측면이 가열되는 한 쌍의 열전모듈; 그리고 상기 한 쌍의 열전모듈의 외측에 장착되며 그 내부로 냉각수가 유동하여 상기 한 쌍의 열전모듈의 타측면을 냉각시키는 한 쌍의 저온부;를 포함하며, 상기 한 쌍의 열전모듈은 상기 일측면과 상기 타측면 사이의 온도차에 의한 열전현상을 이용하여 전기를 생산한다. 차량의 소음기에 장착됨으로써 그 장착공간이 축소되고, 배기가스의 열에너지 회수가 용이하며, 열효율이 향상되는 이점이 있다. A vehicular thermoelectric generator for converting thermal energy of an exhaust gas of an engine into electric energy using a thermoelectric phenomenon. The vehicle thermoelectric generator includes a pair of high temperature parts which are closed at both ends of a vehicle silencer and mounted on an outer circumferential surface of an exhaust pipe through which exhaust gas flows and are heated by the exhaust gas; A pair of thermoelectric modules contacting each outer surface of the pair of hot parts and mounted on an outer circumferential surface of the exhaust pipe so that one side of the pair of hot parts is heated by the pair of high temperature parts; And a pair of low temperature parts mounted on an outer side of the pair of thermoelectric modules to cool the other side of the pair of thermoelectric modules by cooling water flowing therein, wherein the pair of thermoelectric modules includes the one side surface. Produces electricity by using a thermoelectric phenomenon caused by the temperature difference between the and the other side. By mounting the vehicle silencer, the mounting space thereof is reduced, heat energy recovery of the exhaust gas is easy, and thermal efficiency is improved.

Hydraulic striking device

Impactor operated by fluid

Shock hydraulic machine

1507605 Recoil damped percussion tool ATLAS COPCO AB 12 March 1976 [18 March 1975] 09962/76 Heading B4C [Also in Division B3] A recoil damped percussion tool comprises a work tool 22, a machine housing coupled to the work tool and adapted to apply a feeding force to the work tool in a working direction, a hammer piston 17 which reciprocates in the machine housing to deliver impact energy to work tool 22, the work tool recoiling after an impact, and a recoil damping device comprising a retard chamber 70 in the machine housing containing pressurized hydraulic fluid, and a retard piston 68 which recoils with the work tool 22 and is acted upon by the hydraulic fluid in the retard chamber. Preferably, the retard piston has a piston surface 69 which forms the forward end of retard chamber 70 and the increase in pressure in chamber 70 when tool 22 recoils is damped by hydraulic fluid pressure reservoir 48 which is connected to retard chamber 70 by conduits 47 and 71. Driving means.-Hammer piston 17 is reciprocated to strike work tool 22 by hydraulic fluid supplied by inlet conduit 47 and controlled by distributing valve slide 46. In the position shown in Fig. 3 slide 46 allows fluid to enter conduit 55 and rear pressure chamber 39 to drive piston 17, whilst fluid driven from forward pressure chamber 43 flows through conduits 56 and 52 to a sump (not shown). Fluid from conduit 55 blows through passage 64 in slide 46 to act on annular piston surface 63 and maintains slide 46 in its left hand position. When the piston 17 has moved far enough to the left to allow high pressure fluid in conduit 55 to reach control line 62 via expanded rear chamber 39 and for control line 61 to be drained via middle chamber 15, valve slide 46 is pushed to the right. Chamber 43 is supplied with high pressure fluid and chamber 39 is drained to produce a return stroke of piston 17 until control line 61 is pressurized, control line 62 is drained and slide 46 shifted to the left to repeat the driving ...

Novel air intake and exhaust system applied to piston engine

本实用新型公开了一种应用于活塞发动机的新型进排气系统，包括设置在气缸上端面的中空圆柱形壳体，所述壳体的内圆面上设置有贯通至气缸的进排气孔，所述壳体的两端面在靠近进排气孔的位置上分别设置有进气槽和出气槽，所述壳体内部可转动配合安装有开关轮，该开关轮的外圆面设置有可连通进排气孔和进气槽的第一气槽以及可连通进排气孔和排气槽的第二气槽，所述第一气槽和第二气槽之间的间隔大于进排气孔的宽度，所述开关轮通过转轴与动力装置连接。本实用新型结构紧凑，成本低廉、高速运转时可靠性好，节能效果显著。

Discharge valve of a sealing type rotary compressor

PURPOSE: A discharge valve of a hermetic rotary compressor is provided to prevent the collision of a valve element with other elements when carrying out opening or closing operation since the valve element moves on an upper flange by sliding, thereby reducing the noise when opening and closing discharge holes. CONSTITUTION: A discharge valve of a hermetic rotary compressor includes a valve element(51) having a through hole(51a) at a side to be communicated with a discharge hole(31a) and mounted on a top surface of an upper flange(31) slidably, a working element(52) for moving the valve element to change a position of the through hole with respect to the discharge hole in response to a pressure of refrigerant to be compressed, thereby opening and closing the discharge hole, and a supporting element(53) for supporting the valve element not to be deviated from own position of the valve element.

A cooling system and method of turbocharger controlling

A cooling system of a turbocharger and a control method thereof are provided to allow a user to check overheat of the turbocharger by outputting an alarm with an alarm unit when temperature of the turbocharger exceeds a safety temperature. A cooling system of a turbocharger comprises a temperature sensor(42), an auxiliary coolant pipe(22), a directional valve(36), an auxiliary circulation pump(24), and a control valve(26), and a control unit(40). The temperature sensor is installed to the turbocharger to measure temperature of a turbine. The auxiliary coolant pipe is connected to a coolant pipe(12) of an engine(10) through an inlet(30) and an outlet(32) and form a passage around the turbocharger. The directional valve controls flow of coolant between the coolant pipe and the auxiliary coolant pipe. The auxiliary circulation pump feeds coolant to the auxiliary coolant pipe. The control valve is attached to the auxiliary coolant pipe to control flow of coolant fed to the turbocharger. The control unit compares the present temperature of the turbocharger with the predetermined safety temperature, connects the coolant pipe with the auxiliary coolant valve, stops the auxiliary circulation pump, closing the control valve so at to cool the turbocharger by circulating coolant of the coolant pipe through the auxiliary coolant pipe if the present temperature is less than the safety temperature.

System of hydraulic breaker with stepless autoregulation of stroke

FIELD: mining. SUBSTANCE: transmitter (100) is provided with a sensor (110) to detect vibrations generated by the bit. MCU (240) of the receiver (200) controls the crusher. The piston (302) is located in the crusher cylinder (301). The first (302a) and the second (302b) piston surface is directed so that the imposed pressure acts in the back stroke and the forward stroke respectively. An annular recess (303) is located between the piston surfaces. The control plunger (309a) is located in the control valve (309) with a small (309b) surface to shift the plunger in the back stroke position and a large (309s) surface to shift the plunger in the forward stroke position. The front side of the travel valve (319) is connected to a hydraulic pump (311) through the pressure pipeline with the pressure pipeline (321) of stroke control. The output side of the travel valve is connected to a switching pipeline (313) of the control valve via an additional pipeline (322). The lower side of the valve is connected to the pump through a the valve (320) of flow control. MCU controls the flow valve. The spring on the upper surface of the travel valve ensures reset when the pressure changes. According to the first version the pressure pipeline (312) of working pressure is connected to the cylinder through the first output. The return pipeline (317) of low-pressure is connected with the cylinder through the second output. According to the second version the pressure pipeline (312) of working pressure is connected to the front chamber (307) of the cylinder through the first output. The pipeline (318) of variable pressure connects the control valve (309) and back chamber (306) of the cylinder through the second output. The switching pipeline (313) connects the plunger large surface and the third output (313a) of the cylinder. The third output is located between the first and second outputs of the cylinder. The return pipeline (317) of low-pressure is connected to the cylinder through the ...

Method of control of suction valve feed, device for its embodiment, suction valve and piston compressor

FIELD: compressor engineering. SUBSTANCE: flat gate 3 of plate-type suction valve 1 is driven by electromagnet 9 positioned in catcher 6. Electromagnet 9 is controlled so that in the first phase 11a of control flat gate 3 is fitted tightly to catcher 6 or to damping plate 4 located between gate 3 and catcher and is interlocked. In the second phase 11b of control electromagnet net 9 is controlled by means of decaying alternating current. In this case, gate 3 is demagnetized at least partially and separated. Suction valve 1 has seat 2 and flat gate 3 with springs 5. Gate 3 and seat 2 are adjacent to each other directly. Suction valve 1 also includes device actuating flat gate 3. The device includes catcher 6 and electronic control device 8. Catcher 6 is formed by circular body 6a. Circular groove 6b accommodating magnetic coil 9 and passing in direction of circumference is provided in circular body 6a. The latter forms magnetic yoke 6c of electromagnet. Magnetic coil 9 is connected to control device 8 for attraction of gate 3 which serves as electromagnet armature. Piston compressor may include one of said devices or may be used in the way described. EFFECT: enhanced reliability of control, safety in operation. 15 cl, 9 dwg УЕ ЭЭ9Ес ПЧ с» (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ `” 2 166 144 (51) МПК” (13) С2 Е 16 К 31/02, Е 04 В 49/24 (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98108443/06, 01.10.1996 (24) Дата начала действия патента: 01.10.1996 (30) Приоритет: 03.10.1995 ЕР 95810621.3 (43) Дата публикации заявки: 20.02.2000 (46) Дата публикации: 27.04.2001 (56) Ссылки: ОЕ 679714 С, 20.07.1939. ОЕ 1251121 В, 28.09.1967. ОЕ 2302250 А, 01.08.1974. $Ч 225310 А, 29.08.1968. ЕР 06867170 А2, 13.12.1995. ВЕ 1205651 АЗ, 25.11.1965. (85) Дата перевода заявки РСТ на национальную фазу: 05.05.1998 (86) Заявка РСТ: СН 96/00340 (01.10.1996) (87) Публикация РСТ: М/О 97/13068 (10.04.1997) (98) Адрес для переписки: 129010, Москва, ул ...

Impact device with transfer member compressing elastic energy absorbing material

FIELD: plastic metal working; impulse impact action devices. SUBSTANCE: proposed device is connected with means for creating stress impulse in tool which include energy accumulation space arranged in impact device housing and limited by housing, and separate transfer member arranged for shifting tool in axial direction relative to housing of impact device. Energy accumulating space is filled up with flexible reversible energy accumulating material. Transfer member is made for arrangement in certain position relative to housing of impact device at preset stressed state of energy accumulating material and for displacement from said position relative to housing of impact device to tool. Means are provided to change over energy accumulating material into stressed state by increasing pressure, and means for sharp release of transfer member to provide its movement to tool. Device is made to provide strong pressing of tool end to transfer member in said position at preset stressed state of energy accumulating material either directly or through separate transfer part and deliver stresses in form of impulse wave trough transfer member to tool at sharp removal of stressed state of energy accumulating material. EFFECT: improved efficiency of operation owing to increased frequency of stroke impacts. 24 cl, 8 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 321 486 (13) C2 (51) ÌÏÊ B25D 9/04 (2006.01) E21C 31/00 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2004135818/02, 07.05.2003 (30) Êîíâåíöèîííûé ïðèîðèòåò: 08.05.2002 FI 20020881 (73) Ïàòåíòîîáëàäàòåëü(è): ÑÀÍÄÂÈÊ ÒÀÌÐÎÊ ÎÉ (FI) (43) Äàòà ïóáëèêàöèè çà âêè: 27.05.2005 R U (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 07.05.2003 (72) Àâòîð(û): ÊÅÑÊÈÍÈÂÀ Ìàðêêó (FI), ÀÕÎËÀ Ýðêêè (FI), ÊÎÒÀËÀ Àðè (FI) (45) Îïóáëèêîâàíî: 10.04.2008 Áþë. ¹ 10 2 3 2 1 4 8 6 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: SU 1789683 A1, 23.01.1993 ...

A chisel assembly for breaker with multi chisel rod

PURPOSE: A chisel assembly for a breaker with multiple chisel bars is provided to prevent chisel bars from slipping when a bedrock or concrete structure is crushed. CONSTITUTION: A chisel assembly(100) for a breaker with multiple chisel bars comprises a chisel body(110) and multiple chisel bars(120). A stopper pin is coupled to the outer surface of the chisel body so that the chisel body can be returned back to the original position thereof after the striking of a piston. The chisel bars are coupled to the chisel body and are exposed to the bottom of a front head(230).

Vehicle water cooling system

본 고안은 실린더와 연소실 주변을 개별적으로 냉각시킴으로서 연비를 향상시키고, 마찰손실의 감소 및 워터펌프에 대한 구동손실의 최소화로 출력성능을 향상시킴은 물론 난방성능 및 냉각효율을 극대화시킬수 있는 차량의 수냉식 냉각장치에 관한 것으로서, 냉각수를 냉각시키기 위한 라디에이터와, 냉각수 유입라인상에 장착되어 냉각수를 펌핑하는 워터펌프와, 연소실을 냉각시키기 위한 연소실 워터재킷을 갖는 실린더 헤드와, 실린더를 냉각시키기 위한 실린더 워터재킷을 갖는 실린더 블럭과, 냉각수 유출라인상에 장착되고 냉각수 바이패스라인에 의해 워터펌프와 연결되어 순환되는 냉각수의 온도를 조절하기 위한 수온조절장치를 구비하는 차량의 수냉식 냉각장치에 있어서, 상기 실린더 워터재킷과 워터펌프를 연결한 제1 유입라인과, 제1 유입라인에 연속하여 라디에이터에 연결된 제1유출라인과, 워터펌프와 연소실 워터재킷에 연결된 제2유입라인과, 상기 제1 유입라인상에 설치되는 수온조절장치와, 수온조절장치와 제1 유출라인을 연결하는 바이패스라인으로 이루어진 것을 특징으로 하는 차량의 수냉식 냉각장치를 제공하고자 한것이다.

hydraulic strike device

압유회로배치를 변경하지 않으며, 또한 타격에너지를 유지하면서 피스톤 스트로크를 쇼트 스트로크화하여 타격출력을 증대한다. 이 액압식 타격장치는, 피스톤(200)의 외주면과 실린더(100)의 내주면과의 사이에 구획되어 축방향의 전후로 이격 배치된 피스톤전실(110) 및 피스톤후실(111)과, 피스톤전실(110) 및 피스톤후실(111)의 적어도 한쪽을, 고압회로(101) 및 저압회로(102)의 적어도 한쪽으로 절환하여 피스톤을 구동하는 절환밸브기구(130)와, 피스톤후방에 마련되어 피스톤에 그 후퇴행정의 도중에서 맞닿아 피스톤(200)을 전방으로 부세하는 증속피스톤(410)을 구비하고, 증속피스톤(410)은 자신과 피스톤이 맞닿음을 개시하는 타이밍이, 피스톤(200)이 절환밸브기구(130)에 의해 제동을 받는 타이밍보다도 빠르게 설정되어 있다. The pressure oil circuit arrangement is not changed, and the striking power is increased by shortening the piston stroke while maintaining the striking energy. This hydraulic striking device is partitioned between the outer circumferential surface of the piston 200 and the inner circumferential surface of the cylinder 100 , the front and rear piston chamber 110 and the rear piston chamber 111 spaced apart in the axial direction, and the front piston chamber 110 ) and a switching valve mechanism 130 for driving the piston by switching at least one of the high-pressure circuit 101 and the low-pressure circuit 102 to at least one of the rear piston chamber 111, and a retracting stroke provided at the rear of the piston It has a speed-up piston 410 that abuts on the way and urges the piston 200 forward, and the speed-up piston 410 has a timing for starting contact between itself and the piston, and the piston 200 is a selector valve mechanism ( 130) is set earlier than the timing of receiving the brake.

Flap valve arrangement as throttles in intake channels in IC engines has power transmission shaft connecting flap valve wings, and injection-molded valve modules

The arrangement has two or more flap valves (14) with flap wings (15) injection-molded in flap frames (16), and a common rotary axis. The flap wings are connected to each other along the axis, by a shaft acting as power transmission. The bearing for the flap wings in the frame is conical on at least one side, and the cone decreases in size towards an assembly opening of the frame. The arrangement consists of flap modules, each with a flap valve and a shaft seat. An actuator shaft (32) is completely enclosed by injection-molded flap material.

Valve for alternately filling two working chambers of a piston-cylinder system of a pump

The invention relates to a valve for alternately filling two working chambers (A, B) of a piston-cylinder system (1, 2, 3) of a pump with a fluid, wherein the valve has two valve pump outlets (P A , P B ) for connecting to the working chambers (A, B) of the pump and has a valve control element (64) which is arranged in a displaceable manner, and which can be moved back and forth in a fluid-driven manner, in a chamber of a valve housing (60, 61, 76, 77), wherein the valve control element (64) has control ducts (67, 82, 83, 84) which interact with housing ducts (51, 71, 72, 80, 81) arranged in the valve housing (60), wherein the first valve pump outlet (P B ) is connected to the housing ducts (71, 80) and the second valve pump outlet (P A ) is connected to the housing ducts (72, 81), wherein in a central region between the two end positions, the valve pump outlets (P A , P B ) are connected to one another via control ducts (82, 83, 84) of the valve control element (64).

Patent FR2429320B1

ROTO-PERCUTANT HYDRAULIC DRILLING APPARATUS

Un piston frappeur est monté coulissant à l'intérieur d'un cylindre qui délimite une première chambre annulaire reliée à un clapet antiretour monté coulissant à l'intérieur d'une chambre reliée à un accumulateur à membrane, à laquelle aboutit un conduit d'arrivée de fluide hydraulique, et une seconde chambre annulaire reliée à une valve de commande. Cette valve, pilotée par les mouvements du piston, met ladite seconde chambre en communication alternativement avec la haute pression et le conduit de retour. Le clapet antiretour, réalisé sous la forme d'un manchon soumis à la poussée d'un ressort, présente selon l'invention un ajutage latéral permettant le passage direct du fluide vers le conduit de retour, tandis qu'un moteur de rotation est intercalé sur le conduit d'arrivée. On obtient ainsi le fonctionnement de la rotation seule, pour un débit inférieur à un certain seuil, et le fonctionnement rotopercutant, au-dessus de ce seuil. A striking piston is slidably mounted inside a cylinder which delimits a first annular chamber connected to a non-return valve slidably mounted inside a chamber connected to a membrane accumulator, to which an inlet duct ends. hydraulic fluid, and a second annular chamber connected to a control valve. This valve, controlled by the movements of the piston, puts said second chamber in communication alternately with the high pressure and the return duct. The non-return valve, produced in the form of a sleeve subjected to the pressure of a spring, has according to the invention a lateral nozzle allowing the direct passage of the fluid towards the return duct, while a rotation motor is inserted. on the arrival duct. The operation of rotation alone is thus obtained, for a flow rate below a certain threshold, and the rotary percussion operation, above this threshold.

Flat drawer unloading method without adjustment

REBOUND DAMPER FOR PERCUSSION TOOL

Percussion device driven by a pressure fluid

Improvements made to reciprocating motors in particular, for driving percussion tools

Induction valve for four stroke engine - has slide valve operated by twin cams giving positive timing

The slide valve has a moving slide (9), with an orifice (11), and runs in a guide (7). A reciprocating motion is given to the slide (9), by twin engine driven eccentric cams (C1 & C2). These revolve and activate rocker arms (21 & 22), moving the push rods (12 & 13), which are connected to either end of the valve. When the slide (9) is moved, the orifice (11) is aligned with a further orifice (8), in the valve body (3), above the combustion chamber (4). This allows the combustible mixture to flow into the engine from the carburettor (2). The cams return the slide to its original position, and cut off the fuel at the correct time.

PERCUSSION APPARATUS

Cet appareil à percussions (2) comporte un corps (3) ; un outil (7) comportant une partie de montage (8) montée coulissante dans le corps (3) ; et un piston de frappe (6) monté déplaçable de façon alternative dans le corps (3) et configuré pour venir frapper la partie de montage (8). La partie de montage (8) de l'outil (7) comporte une nervure de retenue annulaire (24) comportant une première surface d'appui configurée pour coopérer avec une première surface de butée prévue sur le corps (3) de manière à limiter la course de déplacement de l'outil (7) vers le piston de frappe (6), et une deuxième surface d'appui opposée à la première surface d'appui et configurée pour coopérer avec une deuxième surface de butée prévue sur le corps (3) de manière à limiter la course de déplacement de l'outil (7) à l'opposé du piston de frappe (6) et à retenir la partie de montage (8) de l'outil (7) dans le corps (3). This percussion apparatus (2) comprises a body (3); a tool (7) having a mounting portion (8) slidably mounted in the body (3); and a striking piston (6) mounted alternately movable in the body (3) and configured to strike the mounting portion (8). The mounting portion (8) of the tool (7) has an annular retaining rib (24) having a first bearing surface configured to cooperate with a first abutment surface provided on the body (3) to limit the movement of movement of the tool (7) towards the striking piston (6), and a second bearing surface opposite to the first bearing surface and configured to cooperate with a second abutment surface provided on the body ( 3) so as to limit the movement of movement of the tool (7) away from the striking piston (6) and to retain the mounting portion (8) of the tool (7) in the body (3). ).

Piston compressor

PERCUSSION HYDRAULIC DEVICE