38results about How to "Pressure won't drop" patented technology

The invention discloses synthetic diesel engine oil. The synthetic diesel engine oil comprises, in percentage by mass, 68%-71% of group III base oil, 14%-16% of high-viscosity group IV base oil, 14%-16% of a compound additive and 0.3% of a pour point depressant. In the diesel engine oil, the group III base oil has good oxidation stability, the shear resistance of lubricating oil is guaranteed without any viscosity index improver, the pressure cannot be reduced in the long oil change period, the oil film strength of the lubricating oil is enhanced by use of high-viscosity synthetic base oil, and strong enough oil film protection can be provided in the long-kilometer driving process of an engine.

The invention discloses an efficient energy-saving electromagnetic pump for pumping lubricating oil, and belongs to lubricating equipment of an internal combustion machine. An upper magnet and a lower magnet of the efficient energy-saving electromagnetic pump are arranged on the outer face of an oil pump shell, and a protection shell is fixed to the oil pump shell; annular floating bodies are fixed to the lower face of the protection shell, and a filter is fixed to an oil inlet of the lower end of the oil pump shell; an oil outlet valve is fixed into a center hole of the oil pump shell, and a magnetism induction piston is arranged in the oil pump shell; a lubricating oil inlet channel of an oil inlet cavity is sealed by a sealing ball or sealing cone, and a lubricating oil inlet channel of an extrusion cavity is sealed by a sealing cap; a fixed piston is fixed into a piston hole inside the magnetism induction piston, and the sealing ball or sealing cone is mounted in an inner conical hole; and a containing hole is formed in the lower end of the magnetism induction piston. The efficient energy-saving electromagnetic pump for pumping the lubricating oil is compact in structure, small in vibration, high in electric energy utilization rate and strong in power. When the internal combustion machine is not started, the lubricating oil can also be pumped to the surface required to be lubricated, and when the rotating speed of the internal combustion machine is reduced, the pressure of the lubricating oil will not be reduced, so that the efficient energy-saving electromagnetic pump is suitable for use of mounting of the internal combustion machine.

The invention discloses an efficient, energy-saving and environment-friendly pump for pumping lubricating oil, and belongs to lubricating equipment of an internal combustion machine. An upper magnet and a lower magnet of the efficient, energy-saving and environment-friendly pump for pumping the lubricating oil are arranged on the outer face of an oil pump shell, and a protection shell is fixed to the oil pump shell; annular floating bodies are fixed to the lower face of the protection shell, and a filter is fixed to an oil inlet of the lower end of the oil pump shell; an oil outlet valve is fixed into a center hole of the oil pump shell, and a magnetism induction piston is arranged in the oil pump shell; a lubricating oil inlet channel of an oil inlet cavity is sealed by a sealing ball or sealing cone, and a lubricating oil inlet channel of an extrusion cavity is sealed by a sealing plate; a fixed piston is fixed into a piston hole inside the magnetism induction piston, and the sealing ball or sealing cone is mounted in an inner conical hole; and a containing hole is formed in the lower end of the magnetism induction piston. The efficient, energy-saving and environment-friendly pump for pumping the lubricating oil is compact in structure, small in vibration, high in electric energy utilization rate and strong in power. When the internal combustion machine is not started, the lubricating oil can also be pumped to the surface required to be lubricated, and when the rotating speed of the internal combustion machine is reduced, the pressure of the lubricating oil will not be reduced, so that the efficient, energy-saving and environment-friendly pump for pumping the lubricating oil is suitable for use of mounting of the internal combustion machine.

A high-efficiency pumping lubricating oil environmental protection device, which belongs to the lubrication equipment of internal combustion engines; its electromagnetic coil is outside the oil pump casing, the protective casing is fixed on the oil pump casing, the buoyancy chamber is fixed under the protective casing, and the filter is fixed on the oil pump casing The oil inlet hole at the lower end; the oil outlet valve is fixed in the center hole of the oil pump casing, and there are thrust springs and magnetic pistons in the oil pump casing. The passage of lubricating oil, the sealing ball or sealing cone seals the passage of lubricating oil in the extrusion cavity; the plug hole in the magnetic piston is fixed with a fixed plug, and the sealing ball or sealing cone is installed in the inner cone hole. High-efficiency pumping lubricating oil environmental protection device has compact structure, low vibration, high power utilization rate and strong power. It can also pump lubricating oil to the surface that needs to be lubricated when the internal combustion engine is not started, and the lubricating oil pressure will not drop when the internal combustion engine speed decreases. , suitable for installation and use of internal combustion engines.

The invention relates to a high-efficiency energy-saving lubricating oil pumping electromagnetic device, belonging to lubricating equipment of internal combustion engines. An electromagnetic coil is fixed outside an oil pump housing, a protective shell is fixed to the oil pump housing, a buoyancy chamber is fixed to the lower surface of the protective shell, and a filter is fixed to an oil inlet on the lower end of the oil pump housing; an oil discharge valve is fixed into a center hole in the oil pump housing, a thrust spring and a magnetic piston are arranged in the oil pump housing, the thrust spring abuts against the lower end surface of the magnetism induced piston, and sealing caps respectively seal lubricating oil inlet channels of an oil inlet cavity and an extrusion cavity; and a fixed plug is fixed in a plug hole in the magnetism induced piston, and a ball sealer or cone sealer is installed in an inner cone hole. The high-efficiency energy-saving lubricating oil pumping electromagnetic device has the advantages of compact structure, small vibrations, high electric energy utilization ratio and strong power, and can pump lubricating oil to the surface in need of lubrication when the internal combustion engine is not started; the lubricating oil pressure can not decrease even when the rotating speed of the internal combustion engine decreases; and thus, the device is suitable for the installation and use of the internal combustion engine.

The invention discloses an energy conservation and environmental protection pump capable of pumping lubricating oil efficiently and belongs to lubricating equipment of internal combustion engines.An upper magnet and a lower magnet of the pump are located outside an oil pump shell, a protecting shell is fixed to the oil pump shell, an annular floater is fixed to the position below the protecting shell, and an oil filter is fixed to the position of an oil inlet in the lower end of the oil pump shell; an oil out valve is fixed into a central hole of the oil pump shell, a magnetic induction piston is arranged in the oil pump shell, an oil inlet cavity is sealed through a sealing plate, and a lubricating oil inlet channel of a squeezing cavity is sealed through a sealing cap; a fixed piston is fixed into a piston hole in the magnetic induction piston, a seal ball or a seal cone is mounted in an inner conical hole, and a containing hole is formed in the lower end of the magnetic induction piston.The energy conservation and environmental protection pump capable of pumping lubricating oil efficiently is compact in structure, small in vibration, high in electric energy utilization rate and great in power, when an internal combustion engine is not started, lubricating oil can also be pumped to the surface in need of lubrication, the pressure of lubricating oil cannot be lowered when the rotating speed of the internal combustion engine is lowered, and the energy conservation and environmental protection pump is suitable for being mounted and used in the internal combustion engine.

The invention belongs to lubricating equipment of internal combustion engines, and relates to efficient and environment-friendly equipment for pumping lubricating oil. An electromagnetic coil of the equipment is arranged on the outer portion of a lubricating oil pump shell, a protection shell is fixed to the lubricating oil pump shell, an annular floating body is fixed to the lower portion of the protection shell, and a filter is fixed to an oil inlet hole in the lower end of the lubricating oil pump shell. An oil outlet valve is fixed in a center hole of the lubricating oil pump shell, an iron core spring and a magnetic induction piston are arranged in the lubricating oil pump shell, the iron core spring is pressed on the magnetic induction piston, a lubricating oil inlet channel of an oil inlet cavity is sealed by a sealing cap, and a lubricating oil inlet channel of an extrusion cavity is sealed by a sealing ball or sealing cone. A fixed plug is fixed in a plug hole in the magnetic induction piston, another sealing ball or sealing cone is mounted in an inner cone hole, and a containing hole is formed in the lower end of the magnetic induction piston. The efficient and environment-friendly equipment for pumping the lubricating oil is compact in structure, small in vibration, high in electric energy utilization rate and strong in power; the equipment is suitable for being mounted and used in an internal combustion engine; and metal pins or sediment does not enter a lubricating oil pump when the lubricating oil is pumped.

The invention relates to a high-efficiency environment-friendly energy-saving lubricating oil pumping device, belonging to lubricating equipment of internal combustion engines. An electromagnetic coil is fixed outside an oil pump housing, a protective shell is fixed to the oil pump housing, a buoyancy chamber is fixed to the lower surface of the protective shell, and a filter is fixed to an oil inlet on the lower end of the oil pump housing; an oil discharge valve is fixed into a center hole in the oil pump housing, a thrust spring and a magnetic piston are arranged in the oil pump housing, the thrust spring abuts against the lower end surface of the magnetism induced piston, a sealing plate seals an oil inlet cavity, and an oil-passing sealing plate seals a lubricating oil inlet channel of an extrusion cavity; and a fixed plug is fixed in a plug hole in the magnetism induced piston, and a ball sealer or cone sealer is installed in an inner cone hole. The high-efficiency environment-friendly energy-saving lubricating oil pumping device has the advantages of compact structure, small vibrations, high electric energy utilization ratio and strong power, and can pump lubricating oil to the surface in need of lubrication when the internal combustion engine is not started; the lubricating oil pressure can not decrease even when the rotating speed of the internal combustion engine decreases; and thus, the device is suitable for the installation and use of the internal combustion engine.

The invention relates to a high-efficiency energy-saving pump lubricating oil environment-friendly device, belonging to lubricating equipment of internal combustion engines. An electromagnetic coil of the device is arranged outside an oil pump housing, a protective shell is fixed onto the oil pump housing, a buoyancy chamber is fixed to the lower surface of the protective shell, and a filter is fixed to an oil inlet on the lower end of the oil pump housing; an oil discharge valve is fixed into a center hole in the oil pump housing, a thrust spring and a magnetic piston are arranged in the oil pump housing, the thrust spring abuts against the lower end surface of the magnetism induced piston, a ball sealer or cone sealer seals a lubricating oil inlet channel of an oil inlet cavity, and a sealing plate seals a lubricating oil inlet channel of an extrusion cavity; and a fixed plug is fixed into a plug hole in the magnetism induced piston, and a ball sealer or cone sealer is installed in an inner cone hole. The high-efficiency energy-saving pump lubricating oil environment-friendly device has the advantages of compact structure, small vibrations, high electric energy utilization ratio and strong power, and can pump lubricating oil to the surface in need of lubrication when the internal combustion engine is not started; the lubricating oil pressure can not decrease even when the rotating speed of the internal combustion engine decreases; and thus, the device is suitable for the installation and use of the internal combustion engine.

An energy-saving, high-efficiency and environment-friendly lubricating oil equipment belongs to the lubricating equipment for internal combustion engines; its electromagnetic coil is outside the lubricating oil pump casing, the protective casing is fixed on the lubricating oil pump casing, the annular floating body is fixed under the protective casing, and the filter is fixed on the lubricating oil pump casing. The oil inlet hole at the lower end of the oil pump casing; the oil outlet valve is fixed in the center hole of the lubricating oil pump casing. There is an iron core spring and a magnetic piston in the lubricating oil pump casing. The iron core spring is pressed on the magnetic piston and sealed by the oil sealing plate. The lubricating oil passage of the oil inlet chamber and the lubricating oil passage of the sealing extrusion chamber; a fixed plug is fixed in the plug hole in the magnetic piston, and a sealing cap is installed on the annular sealing surface of the magnetic piston. Energy-saving, high-efficiency and environmentally-friendly lubricating oil equipment has compact structure, low vibration, high power utilization rate, and strong power. It can also pump lubricating oil to the surface that needs to be lubricated when the internal combustion engine is not started. When the speed of the internal combustion engine decreases, the lubricating oil pressure will not drop. Suitable for installation and use of internal combustion engines.

The invention discloses an efficient, environment-friendly and energy-saving pump for pumping lubricating oil, and belongs to lubricating equipment of an internal combustion machine. An upper magnet and a lower magnet of the efficient, environment-friendly and energy-saving pump are arranged on the outer face of an oil pump shell, and a protection shell is fixed to the oil pump shell; annular floating bodies are fixed to the lower face of the protection shell, and a filter is fixed to an oil inlet of the lower end of the oil pump shell; an oil outlet valve is fixed into a center hole of the oil pump shell, and a magnetism induction piston is arranged in the oil pump shell; an oil inlet cavity is sealed by a sealing plate, and a lubricating oil inlet channel of an extrusion cavity is sealed by an oil passing sealing plate; a fixed piston is fixed into a piston hole inside the magnetism induction piston, and a sealing ball or sealing cone is mounted in an inner conical hole; and a containing hole is formed in the lower end of the magnetism induction piston. The efficient, environment-friendly and energy-saving pump for pumping the lubricating oil is compact in structure, small in vibration, high in electric energy utilization rate and strong in power. When the internal combustion machine is not started, the lubricating oil can also be pumped to the surface required to be lubricated, and when the rotating speed of the internal combustion machine is reduced, the pressure of the lubricating oil will not be reduced, so that the efficient, environment-friendly and energy-saving pump is suitable for use of mounting of the internal combustion machine.

A high-efficiency energy-saving pump lubricating oil pump, which belongs to the lubrication equipment of internal combustion engines; its upper magnet and lower magnet are respectively outside the oil pump casing, the protective casing is fixed on the oil pump casing, the annular floating body is fixed under the protective casing, and the filter is fixed At the oil inlet hole at the lower end of the oil pump casing; the oil outlet valve is fixed in the center hole of the oil pump casing, and there is a magnetic piston in the oil pump casing, the sealing cap seals the lubricating oil passage in the oil inlet chamber, and the sealing plate seals the extrusion chamber The channel for entering lubricating oil; a fixed plug is fixed in the plug hole in the magnetic piston, a sealing ball or a sealing cone is installed in the inner cone hole, and there is a receiving hole at the lower end of the magnetic piston. Pump lubricating oil with high efficiency and energy saving The pump has compact structure, low vibration, high power utilization rate, and strong power. It can also pump lubricating oil to the surface that needs to be lubricated when the internal combustion engine is not started, and the lubricating oil pressure will not decrease when the internal combustion engine speed decreases. Suitable for installation and use of internal combustion engines.

The invention provides an environment-friendly energy-saving lubricating oil pumping device and belongs to lubricating devices for internal combustion engines. An electromagnetic coil of the environment-friendly energy-saving lubricating oil pumping device is located on the outer face of a lubricating oil pump shell, a protective shell is fixed to the lubricating oil pump shell, an annular floating body is fixed to the lower face of the protective shell, and a filter is fixed to the position of an oil inflow hole in the lower end of the lubricating oil pump shell. An oil outflow valve is fixed into a center hole of the lubricating oil pump shell, an iron core spring and a magnetism induction piston are arranged in the lubricating oil pump shell, the iron core spring presses the magnetism induction piston, a lubricating oil inflow channel of an oil inflow cavity is sealed through an oil passing sealing board, and a lubricating oil inflow channel of an extrusion cavity is sealed through a sealing ball or a sealing cone. A fixing plug is fixed into a plug hole in the magnetism induction piston, and the sealing ball or the sealing cone is installed in an inner conic hole of the magnetism induction piston. The environment-friendly energy-saving lubricating oil pumping device is compact in structure, small in vibration, high in electric energy use rate, strong in power and suitable for being installed and used on an internal combustion engine, wherein metal chips and sediment cannot enter a lubricating oil pump in the lubricating oil pumping process.

The invention relates to an energy-saving high-efficiency lubricating oil pumping electromagnetic device, belonging to lubricating equipment of internal combustion engines. An electromagnetic coil is fixed outside an oil pump housing, a protective shell is fixed to the oil pump housing, a buoyancy chamber is fixed to the lower surface of the protective shell, and a filter is fixed to an oil inlet on the lower end of the oil pump housing; an oil discharge valve is fixed into a center hole in the oil pump housing, a thrust spring and a magnetic piston are arranged in the oil pump housing, the thrust spring abuts against the lower end surface of the magnetism induced piston, a sealing cap seals an oil inlet cavity, and an oil-passing sealing plate seals an extrusion cavity; and a fixed plug is fixed in a plug hole in the magnetism induced piston, and a ball sealer or cone sealer is installed in an inner cone hole. The energy-saving high-efficiency lubricating oil pumping electromagnetic device has the advantages of compact structure, small vibrations, high electric energy utilization ratio and strong power, and can pump lubricating oil to the surface in need of lubrication when the internal combustion engine is not started; the lubricating oil pressure can not decrease even when the rotating speed of the internal combustion engine decreases; and thus, the device is suitable for the installation and use of the internal combustion engine.

A high-efficiency lubricating oil energy-saving pump belongs to the lubrication equipment of internal combustion engines; its upper magnet and lower magnet are respectively outside the oil pump casing, the protective casing is fixed on the oil pump casing, the annular floating body is fixed under the protective casing, and the filter is fixed At the oil inlet hole at the lower end of the oil pump casing; the oil outlet valve is fixed in the center hole of the oil pump casing, and there is a magnetic piston in the oil pump casing, and the sealing plate seals the lubricating oil passages of the oil inlet chamber and the extrusion chamber respectively; A fixed plug is fixed in the plug hole in the piston, a sealing ball or a sealing cone is installed in the inner taper hole, and there is a receiving hole at the lower end of the magnetic piston. High-efficiency pump Lubricating oil energy-saving pump has compact structure, low vibration, high power utilization rate, and strong power. It can also pump lubricating oil to the surface that needs to be lubricated when the internal combustion engine is not started, and the lubricating oil pressure will not decrease when the internal combustion engine speed decreases. Suitable for installation and use of internal combustion engines; metal pins and sediments do not enter the lubricating oil pump when pumping lubricating oil.

The invention discloses a lubricating oil pumping electromagnetic efficient energy-saving device and belongs to lubricating equipment of internal combustion engines. An electromagnetic coil of the lubricating oil pumping electromagnetic efficient energy-saving device is located outside an oil pump shell. A protection shell is fixed to the oil pump shell. A buoyancy force cavity is fixed under the protection shell. A filter is fixed to an oil inlet of the lower end of the oil pump shell. An oil outlet valve is fixed in a central hole. A pushing spring and a magnetic inducing piston are arranged in the oil pump shell. The pushing spring is pressed on the lower end face of the magnetic inducing piston in an abutting mode. A sealing ball or a sealing cone seals a lubricating oil inlet channel of an oil inlet cavity. An oil-passing sealing plate seals a lubricating oil inlet channel of an extrusion cavity. A fixing plug is fixed in a plug hole in the magnetic inducing piston. A sealing ball or a sealing cone is installed in an inner conical hole. The lubricating oil pumping electromagnetic efficient energy-saving device is compact in structure, small in vibration, high in electric energy utilization rate, strong in power, capable of pumping lubricating oil to the surface needing to be lubricated when an internal combustion engine is not started and suitable for installation and application of the internal combustion engine, and the lubricating oil pressure is not decreased when the rotation speed of the internal combustion engine is decreased.

The invention discloses a lubricating oil pumping electromagnetic efficient energy-saving pump and belongs to lubricating equipment of internal combustion engines. An upper magnetic body and a lower magnetic body of the lubricating oil pumping electromagnetic efficient energy-saving pump are located outside an oil pump shell. A protection shell is fixed to the oil pump shell. An annular floating body is fixed under the protection shell. A filter is fixed to an oil inlet of the lower end of the oil pump shell. An oil outlet valve is fixed in a central hole. A magnetic inducing piston is arranged in the oil pump shell. A sealing ball or a sealing cone seals a lubricating oil inlet channel of an oil inlet cavity, and an oil-passing sealing plate seals a lubricating oil inlet channel of an extrusion cavity. A fixing plug is fixed in a plug hole in the magnetic inducing piston, and a sealing ball or a sealing cone is installed in an inner conical hole. A containing hole is formed in the lower end of the magnetic inducing piston. The lubricating oil pumping electromagnetic efficient energy-saving pump is compact in structure, small in vibration, high in electric energy utilization rate, strong in power, capable of pumping lubricating oil to the surface needing to be lubricated when an internal combustion engine is not started and suitable for installation and application of the internal combustion engine, and the lubricating oil pressure is not decreased when the rotation speed of the internal combustion engine is decreased.

The invention belongs to lubricating equipment of internal combustion engines, and relates to efficient, environment-friendly and energy-saving equipment for pumping lubricating oil. An electromagnetic coil of the equipment is arranged on the outer portion of a lubricating oil pump shell, a protection shell is fixed to the lubricating oil pump shell, an annular floating body is fixed to the lower portion of the protection shell, and a filter is fixed to an oil inlet hole in the lower end of the lubricating oil pump shell. An oil outlet valve is fixed in a center hole of the lubricating oil pump shell, an iron core spring and a magnetic induction piston are arranged in the lubricating oil pump shell, the iron core spring is pressed on the magnetic induction piston, and a lubricating oil inlet channel of an oil inlet cavity and a lubricating oil inlet channel of an extrusion cavity are sealed by sealing balls or sealing cones. A fixed plug is fixed in a plug hole in the magnetic induction piston, another sealing ball or sealing cone is mounted in an inner cone hole, and a containing hole is formed in the lower end of the magnetic induction piston. The efficient, environment-friendly and energy-saving equipment for pumping the lubricating oil is compact in structure, small in vibration, high in electric energy utilization rate and strong in power; the lubricating oil can be pumped to the surface needing to be lubricated when an internal combustion engine is not started, and the pressure of the lubricating oil cannot be decreased when the rotating speed of the internal combustion engine is decreased; and the equipment is suitable for being mounted and used in the internal combustion engine.

The invention discloses an energy-saving efficient electromagnetic pump for pumping lubricating oil, and belongs to lubricating equipment of an internal combustion machine. An upper magnet and a lower magnet of the energy-saving efficient electromagnetic pump for pumping the lubricating oil are arranged on the outer face of an oil pump shell, and a protection shell is fixed to the oil pump shell; annular floating bodies are fixed to the lower face of the protection shell, and a filter is fixed to an oil inlet of the lower end of the oil pump shell; an oil outlet valve is fixed into a center hole of the oil pump shell, and a magnetism induction piston is arranged in the oil pump shell; an oil inlet cavity is sealed by a sealing cap, and an extrusion cavity is sealed by an oil passing sealing plate; a fixed piston is fixed into a piston hole inside the magnetism induction piston, and a sealing ball or sealing cone is mounted in an inner conical hole; and a containing hole is formed in the lower end of the magnetism induction piston. The energy-saving efficient electromagnetic pump for pumping the lubricating oil is compact in structure, small in vibration, high in electric energy utilization rate and strong in power. When the internal combustion machine is not started, the lubricating oil can also be pumped to the surface required to be lubricated, and when the rotating speed of the internal combustion machine is reduced, the pressure of the lubricating oil will not be reduced, so that the energy-saving efficient electromagnetic pump for pumping the lubricating oil is suitable for use of mounting of the internal combustion machine; and when the lubricating oil is pumped, metal pins and sediment cannot enter the lubricating oil pump.

The invention belongs to lubricating equipment of internal combustion engines, and relates to efficient and energy-saving electromagnetic equipment for pumping lubricating oil. An electromagnetic coil of the equipment is arranged on the outer portion of a lubricating oil pump shell, a protection shell is fixed to the lubricating oil pump shell, an annular floating body is fixed to the lower portion of the protection shell, and a filter is fixed to an oil inlet hole in the lower end of the lubricating oil pump shell. An oil outlet valve is fixed in a center hole of the lubricating oil pump shell, an iron core spring and a magnetic induction piston are arranged in the lubricating oil pump shell, the iron core spring is pressed on the magnetic induction piston, a lubricating oil inlet channel of an oil inlet cavity is sealed by a sealing ball or sealing cone, and a lubricating oil inlet channel of an extrusion cavity is sealed by a sealing cap. A fixed plug is fixed in a plug hole in the magnetic induction piston, another sealing ball or sealing cone is mounted in an inner cone hole, and a containing hole is formed in the lower end of the magnetic induction piston. The efficient and energy-saving electromagnetic equipment for pumping the lubricating oil is compact in structure, small in vibration, high in electric energy utilization rate and strong in power; and the equipment is suitable for being mounted and used in an internal combustion engine.

The invention discloses an efficient lubricating oil pumping energy-saving electromagnetic device and belongs to lubricating equipment of internal combustion engines. An electromagnetic coil of the efficient lubricating oil pumping energy-saving electromagnetic device is located outside an oil pump shell. A protection shell is fixed to the oil pump shell. A buoyancy force cavity is fixed under the protection shell. A filter is fixed to an oil inlet of the lower end of the oil pump shell. An oil outlet valve is fixed in a central hole of the oil pump shell. A pushing spring and a magnetic inducing piston are arranged in the oil pump shell. The pushing spring is pressed on the lower end face of the magnetic inducing piston in an abutting mode. A sealing ball or a sealing cone seals a lubricating oil inlet channel of an oil inlet cavity. A sealing cap seals a lubricating oil inlet channel of an extrusion cavity. A fixing plug is fixed in a plug hole in the magnetic inducing piston. A sealing ball or a sealing cone is installed in an inner conical hole. The efficient lubricating oil pumping energy-saving electromagnetic device is compact in structure, small in vibration, high in electric energy utilization rate, strong in power, capable of pumping lubricating oil to the surface needing to be lubricated when an internal combustion engine is not started and suitable for installation and application of the internal combustion engine, and the lubricating oil pressure is not decreased when the rotation speed of the internal combustion engine is decreased.