82results about "Lubrication for crankcase compression engines" patented technology

A supply assembly 1 for a gaseous-fuel engine (60,fig.5).The supply assembly comprises a fuel rail 12 for conveying a gaseous fuel to a plurality of injector units 13. Each injector unit comprising a fuel injector 20 that is at least indirectly connected to the fuel rail and is adapted to inject fuel into the engine. The supply assembly further comprises a lubricant-supply system 30 comprising at least one lubricant doser 31 with an outlet port (38,fig.2), the lubricant doser being adapted to controllably release a liquid lubricant through the outlet port into an injector unit and is mounted to the injector unit. The doser may be a volumetric doser comprising a pump chamber (35,fig.2) communicating with the outlet port and a pump plunger (34,fig.2) that is adapted to displace lubricant into the injector unit during a release process. The supply system may increase a fluid pressure at an inlet port 36 and decrease pressure at a control port (42,fig.2) to introduce lubricant from the inlet to the pump chamber, and decrease fluid pressure at the inlet and increase fluid pressure at the control port to eject lubricant from the chamber.

A fuel supply device includes a fuel tank, a delivery pipe in which gas fuel to be supplied to a fuel injection valve is stored, a supply passage through which the fuel gas supplied from the fuel tank to the delivery pipe flows, a shut-off valve provided in the supply passage, an oil supply device that supplies oil to a downstream portion of the supply passage, and a controller. The controller executes an oil supply process during operation of the internal combustion engine to close the shut-off valve to stop the supply of the gas fuel to the delivery pipe, and supply the oil to the downstream portion by the oil supply device when the pressure in the delivery pipe has dropped.

To make oil surely interpose between a rotor housing and a rotor even in cold starting.SOLUTION: An engine system 12 comprises: a rotary engine 14 having a rotor housing 16, side housings 18, and a rotor 20 that is housed in a rotor accommodation chamber surrounded by the rotor housing and the side housings and forms three working chambers 24, in which the rotary engine is driven by a starter generator 10 at the time of starting to increase in rotation speed, and drives the starter generator during operation; a water temperature sensor 64 for detecting a cooling water temperature of the rotary engine; and a PCM 84 and an SGCM 86, which are configured to control rotation speed of the starter generator at the time of engine starting. The PCM 84 and the SGCM 86 control the starter generator such that when the cooling water temperature at the time of rotary engine starting is relatively low, the rate of increase in engine rotation speed becomes low as compared with that when the cooling water temperature is relatively high.SELECTED DRAWING: Figure 7

The invention relates to a system for supplying gaseous fuel, in particular hydrogen, for an internal combustion engine, the supply system comprising a fuel rail (12) for receiving pressurised gaseous fuel and a plurality of fuel injectors (14) connected to the fuel rail, wherein: each injector (14) is connected to the rail via a respective supply tube (16); the connection between each injector and its supply tube is established via an adapter (14) defining a gas passage (15), one end of which is connected to the supply tube (16) and the other end of which is coupled to the injector. An oil dosing device (31) is mounted on each adapter (14) and is configured to selectively inject controlled amounts of oil into the gas passage (15).

A method for producing one or more cylinder oils having various kinematic viscosities for use in marine reciprocating internal combustion engines is disclosed, the method comprising providing a first fluid having a first kinematic viscosity and a first BN, providing a second fluid having a second kinematic viscosity different from the first kinematic viscosity and a second BN, blending the first and second fluids in a first ratio to produce a cylinder oil having a viscosity of 14 mm at 100° C. 2 and producing a first cylinder oil having a kinematic viscosity of no more than 1 / s.

To lower a concentration of moisture included in oil stored in an oil storage part.SOLUTION: An engine system 100 includes an internal combustion engine 10, a hydrogen generator 50, and a heat exchange mechanism 70. The internal combustion engine 10 is an internal combustion engine using hydrogen as fuel. The internal combustion engine 10 has an oil pan 25 storing oil. The hydrogen generator 50 generates hydrogen by heating a material of hydrogen. The heat exchange mechanism 70 exchanges heat between the hydrogen generator 50 and the oil that is stored in the oil pan 25.SELECTED DRAWING: Figure 1

A fuel conditioning system for an engine comprises a plurality of mixing vessels that include an input mixing vessel and an output mixing vessel, at least one inlet for receiving fuel and water into the input mixing vessel and at least one outlet for supplying the fuel and water from the output mixing vessel to the engine. A conduit system is arranged to transfer the fuel and water through each of the mixing vessels from the input mixing vessel to the output mixing vessel. Each of the mixing vessels comprises an internal chamber containing a plurality of nebulizing members. The nebulizing members are configured to rotate about a rotational axis extending through the internal chamber to nebulize the fuel and water therein. One or more magnets disposed in the internal chamber to attract ferromagnetic substances present in the fuel and / or water.

A fuel supply device includes a fuel tank, a delivery pipe in which gas fuel to be supplied to a fuel injection valve is stored, a supply passage through which the fuel gas supplied from the fuel tank to the delivery pipe flows, a shut-off valve provided in the supply passage, an oil supply device that supplies oil to a downstream portion of the supply passage, and a controller. The controller executes an oil supply process during operation of the internal combustion engine to close the shut-off valve to stop the supply of the gas fuel to the delivery pipe, and supply the oil to the downstream portion by the oil supply device when the pressure in the delivery pipe has dropped.

A method for producing cylinder oil for a marine reciprocating internal combustion engine is disclosed, the method includes providing a first fluid having a first kinematic viscosity and a first BN, providing a second fluid having a second kinematic viscosity and a second BN, providing a third fluid having a third kinematic viscosity and a third BN, obtaining data specifying a target kinematic viscosity of the produced cylinder oil, obtaining data specifying a target BN of the produced cylinder oil, and obtaining data specifying a kinematic viscosity and a BN of each of the first, second, and third fluids. Based on at least the kinematic viscosities and BNs of each of the first, second, and third fluids, the method further includes determining a ratio of the first, second, and third fluids to produce a cylinder oil having a kinematic viscosity corresponding to the target kinematic viscosity and / or a BN corresponding to the target BN, and blending the first, second, and third fluids in the determined ratio to produce the cylinder oil.

A two-stroke engine includes a cylinder and a piston configured to reciprocate in a bore portion along an axial direction. An intake port is opened and closed by the piston. A two-stroke engine includes a crankcase connected to the cylinder and having a crank chamber, a crank mechanism disposed in the crank chamber and configured to rotate about a crankshaft, a connecting rod having a small end connected to the piston and a large end connected to the crank mechanism, and a fuel injector attached to the crankcase and configured to inject mixed fuel in a tangential direction of a circumferential trajectory of the large end to spray the mixed fuel to the large end.

A gaseous fuel supply system, particularly for hydrogen, for an internal combustion engine, the supply system comprising a fuel rail (12) for receiving pressurized gaseous fuel and a plurality of fuel injectors (14) connected to the fuel rail, wherein: each injector (14) is connected to the rail via a respective supply tube (16); the connection between each injector and its supply tube is made via an adapter (14) defining a gas passage (15), one end of which is connected to the supply tube (16), and the other end of which is coupled to the injector. An oil metering device (31) is mounted on each adapter (14) and configured to selectively inject controlled quantities of oil into the gas passage (15). (Fig. 2)

A system is provided. The system includes a reciprocating engine configured to consume oil at or less than 0.25 g / kw-hr and use makeup oil. The reciprocating engine includes an engine oil sump. The system is configured to maintain the oil volume in the reciprocating engine during operation such that the residence time of the oil in the reciprocating engine is at or less than 1000 hours.

Engine lubrication structure configured to supply oil from an oil pump to individual components of an engine (1) in which a balance shaft (33, 34) is arranged parallel to a crankshaft (30) in a crankcase (4), wherein: the engine (1) has a turbocharger (2) which is configured to compress intake air using exhaust gas from the engine (1), a main gallery (43) which supplies oil to a crankshaft bearing (30) via a first oil channel (44) and to a balance shaft bearing (33, 34) via a second oil channel (45), and a sub-gallery (48) which receives oil that has first been supplied to the balance shaft bearing (33, 34) via a third oil channel (49) extending from the balance shaft bearing (33, 34) to the sub-gallery (48), and which supply individual engine components that have received oil supplied to the balance shaft bearing (33, 34) are provided in the crankcase (4), and a fourth oil channel (24a), which supplies oil to the turbocharger (2), is connected to the subgallery (48).

A supply assembly (fig.1,1) for a gaseous-fuel engine (fig.4,60). The assembly has a fuel-supply system (fig.1,10) comprising a fuel rail (fig.1,12) conveying a gaseous fuel and a plurality of injecto

A crankcase scavenged two-stroke engine (200, 900) comprising a cylinder wall (260) with an intake port (250) and an exhaust port (251 ), where the engine (200, 900) is associated with an idle mode of operation and an active mode of operation, where a speed (w) of the engine (200, 900) is higher in the active mode of operation compared to the idle mode of operation, the engine (200, 900) comprising at least one engine vibration sensor (270) arranged to sense vibration by the engine (200, 900) and to output an engine vibration signal (275), and a control unit (280) configured to detect a lubrication deficiency in the engine (200, 900) based on the engine vibration signal (275), where the lubrication deficiency detection by the control unit (280) is conditioned on that the engine (200, 900) is operating in the active mode of operation.

A two-stroke engine includes a cylinder having an intake port, a piston configured to open and close the intake port by reciprocating in the cylinder, a crankcase connected to the cylinder and including a crank chamber, a crank assembly located in the crank chamber, a connecting rod having a first end connected to the piston and a second end connected to the crank assembly, and a fuel injector attached to the crankcase and configured to inject mixed fuel to the second end.

Disclosed is a method for producing one or more cylinder oils of varying kinematic viscosity for a marine reciprocating internal combustion engine. The method comprises providing a first fluid having a first kinematic viscosity and a first BN, providing a second fluid having a second kinematic viscosity and a second BN, the second kinematic viscosity different from the first kinematic viscosity, and blending the first fluid and the second fluid in a first ratio to produce a first cylinder oil having a kinematic viscosity equal to or less than 14 mm2 / s at 100° C.

According to the oil injector for lubricating the diesel engine starting air distributor, the upper end of a base is detachably and fixedly connected with a base flange above the base, a flow-adjustable oil injection device is fixed between the base and the base flange, and an oil tank with the filtering and dustproof functions is arranged at the upper end of the base flange in a sealed mode; an oil outlet hole in the lower end of the oil tank is communicated with an oil inlet in the flow-adjustable oil injection device through a one-way valve assembly arranged on the base flange; a compressed air hole and a lubricating oil hole are formed in the base, a hole opening in the other end of the compressed air hole is located in the upper end face of the base and communicated with a compressed air inlet of the flow-adjustable oil injection device in a sealed mode, and the other end of the lubricating oil hole is communicated with a lubricating oil outlet of the flow-adjustable oil injection device through a one-way valve set device. The problems that the oil injection amount of a traditional oil injector cannot be adjusted, and the oil injector is blocked are solved, the situation that abnormal abrasion occurs between the distribution disc and the shell of the mechanical air distributor is avoided, and the starting reliability of a diesel engine is protected.

A two-stroke engine includes a cylinder and a piston configured to reciprocate in a bore portion along an axial direction. An intake port is opened and closed by the piston. A two-stroke engine includes a crankcase connected to the cylinder and having a crank chamber, a crank mechanism disposed in the crank chamber and configured to rotate about a crankshaft, a connecting rod having a small end connected to the piston and a large end connected to the crank mechanism, and a fuel injector attached to the crankcase and configured to inject mixed fuel in a tangential direction of a circumferential trajectory of the large end to spray the mixed fuel to the large end.

A system. The system includes a power source, a control module of a machine, and a fluid component. The fluid component is configured to establish an electrical connection between the power source and the control module during performance of a fluid operation on the machine when the machine is powered down.

To provide a fuel supply device capable of supplying oil into a delivery pipe without complicating a device configuration.SOLUTION: A fuel supply device 15 comprises a fuel tank 21, a delivery pipe 22 in which gas fuel to be supplied to a fuel injection valve 14 is stored, a supply passage 23 through which the fuel gas supplied from the fuel tank 21 to the delivery pipe 22 flows, a shut-off valve 26 provided in the supply passage 23, an oil supply device 30 that supplies oil to a downstream portion 23A of the supply passage 23, and a control unit 50. The control unit 50 executes oil supply processing during operation of an internal combustion engine 10 to close the shut-off valve 26 to stop the supply of the gas fuel to the delivery pipe 22, and to supply the oil to the downstream portion 23A by the oil supply device 30 under the situation where the pressure in the delivery pipe 22 drops.SELECTED DRAWING: Figure 1

To provide a two cycle engine which enables lubrication and cooling to be performed at a large end with a small amount of a mixed fuel.SOLUTION: An engine 1 includes: a crank case 6 connected to a cylinder 2; a crank mechanism 7 which is disposed in a crank chamber 6a and rotates around a crank shaft 7a; a connecting rod 10 having a small end part 21 connected to a piston 4 and a large end part 22 connected to the crank mechanism 7; and a fuel injection nozzle 30 which is attached to the crank case 6 and injects a mixed fuel in a tangential direction of a circular track of the large end part 22 to spray the mixed fuel to the large end part 22.SELECTED DRAWING: Figure 1

A system with active pressure control includes a sensor, a valve, and a controller. The sensor interfaces with and senses a pressure within a cavity of system component. The valve is disposed along a gas discharge path in fluid communication with a gas outlet port of a separator. The controller varies open area of the valve based on the pressure measured by the sensor.

A lubricant dosing device 10 for a gaseous fuel delivery system of an internal combustion engine, in particular a hydrogen engine, comprises a body 12 having a pumping bore 20 and defining a pumping c

A supply assembly 1 for a hydrogen internal combustion engine (50, fig.2), comprising a lubricating device 10 with a gas duct 15 for conveying a gas stream (F) from an inlet 16 to an outlet 17, a lubr

A fuel conditioning system for an engine comprises a plurality of mixing vessels, including an inlet mixing vessel and an outlet mixing vessel, at least one inlet for receiving fuel and water into the inlet mixing vessel, and at least one outlet for supplying fuel and water from the outlet mixing vessel to the engine. A piping system is arranged such that the fuel and water are conveyed through each of the mixing vessels from the inlet mixing vessel to the outlet mixing vessel. Each of the mixing vessels includes an inner chamber containing a plurality of atomizing elements. The atomizing elements are configured to rotate about an axis of rotation passing through the inner chamber to atomize the fuel and water within it. One or more magnets are arranged in the inner chamber to attract ferromagnetic substances present in the fuel and / or water.

The present invention provides a control device for an electric vehicle engine that can accelerate the warm-up of the engine before starting, in an engine installed in an electric vehicle. [Solution] A first warm-up control is performed when the temperature of the coolant in the motor-side cooling passage 11 rises to a predetermined determination temperature, and the coolant supply device 17 supplies the coolant to the engine body 21. A second warm-up control is performed after the first warm-up control has been performed and when the battery's SOC has dropped to a predetermined first SOC, and the heater 52 raises the temperature of the engine oil. A third warm-up control is performed after the second warm-up control has been performed and when the battery's SOC has dropped to a second SOC, and the EGR valve 35B is opened and the starter 4 motors the engine body 21.

A fuel conditioning system for an engine includes a plurality of mixing vessels including an input mixing vessel and an output mixing vessel, at least one inlet for receiving fuel and water into the input mixing vessel and at least one outlet for supplying the fuel and water from the output mixing vessel to the engine. A conduit system is arranged to transport the fuel and water from the input mixing vessel to the output mixing vessel through each of the mixing vessels. Each of the mixing vessels includes an internal chamber housing a plurality of atomizing members. The atomizing members are configured to rotate about an axis of rotation extending through the internal chamber to atomize the fuel and water in the internal chamber. One or more magnets are disposed within the internal chamber to attract ferromagnetic material present in the fuel and / or water.

The present invention provides a method for lubricating a large, slow-operating marine diesel engine having at least one cylinder with a piston having a ring pack. Lubricant injection is performed through an injection unit for each cylinder. Each injection unit is controlled by a control unit having multiple lubrication routines stored in memory. The control unit receives input from an input station or from one or more sensors. The input can determine the implementation of one of multiple possible lubrication routines, each lubrication routine being distinguished by duration, dosage adjustment as a percentage of the total lubricant required, and two or more distinct injection phases relative to piston position. Each of the two or more distinct injection phases injects a quantity of lubricant expressed as a percentage of the total amount of lubricant injected.

A fuel conditioning system for an engine comprises a plurality of mixing vessels that include an input mixing vessel and an output mixing vessel, at least one inlet for receiving fuel and water into the input mixing vessel and at least one outlet for supplying the fuel and water from the output mixing vessel to the engine. A conduit system is arranged to transfer the fuel and water through each of the mixing vessels from the input mixing vessel to the output mixing vessel. Each of the mixing vessels comprises an internal chamber containing a plurality of nebulizing members. The nebulizing members are configured to rotate about a rotational axis extending through the internal chamber to nebulize the fuel and water therein. One or more magnets disposed in the internal chamber to attract ferromagnetic substances present in the fuel and / or water.