CN111980916A - Auxiliary pneumatic motor driving single-pair gear type oil pump - Google Patents
Auxiliary pneumatic motor driving single-pair gear type oil pump Download PDFInfo
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- CN111980916A CN111980916A CN202010919428.1A CN202010919428A CN111980916A CN 111980916 A CN111980916 A CN 111980916A CN 202010919428 A CN202010919428 A CN 202010919428A CN 111980916 A CN111980916 A CN 111980916A
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- oil pump
- pneumatic motor
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- engine
- roller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
- F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F01C1/3441—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C13/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01C13/04—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby for driving pumps or compressors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
- F01K3/02—Use of accumulators and specific engine types; Control thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/001—Pumps for particular liquids
- F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/008—Prime movers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
- F01M2001/0238—Rotary pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0253—Pressure lubrication using lubricating pumps characterised by the pump driving means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0253—Pressure lubrication using lubricating pumps characterised by the pump driving means
- F01M2001/0269—Pressure lubrication using lubricating pumps characterised by the pump driving means driven by the crankshaft
Abstract
The invention discloses an auxiliary pneumatic motor driving single-pair gear type oil pump, belonging to the technical field of oil pumps, which comprises: the engine oil pump comprises an engine oil pump shell, an auxiliary gear shaft, a semicircular key, a transmission gear, a locking nut, a main gear shaft, a semicircular key, a first bolt, an engine oil pump cover, a main gear, a first roller, a pneumatic motor shell, a blade, a rotor, a second roller, a second bolt, a high-pressure air tank, an ECU and an electromagnetic valve. The auxiliary pneumatic motor drives the single-pair gear type oil pump, when the engine needs to be started, the ECU controls the electromagnetic valve to be opened, so that the pneumatic motor drives the oil pump to pump oil, after ten seconds, the electromagnetic valve is automatically disconnected, thus the pre-lubrication process before the engine is started is completed, the electric energy of an automobile storage battery is not consumed, the engine can be completely pre-lubricated only by installing one oil pump, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of oil pumps, in particular to an auxiliary pneumatic motor driven single-pair gear type oil pump.
Background
According to statistics, about 30% of energy in the world is consumed by various types of friction, the engine is the same, the internal abrasion loss power of the engines in different technical states accounts for 20% -25% of the indicated power, and the abrasion loss power of the engines in serious conditions can even reach about 35%. The wear of the vehicle engine is mainly manifested in the starting moment, particularly in cold and hot starts. Common tests by the society of automotive engineers and the dow gras company have shown that the wear of an engine at cold start accounts for between 60% and 80% of the total wear.
In the traditional gear type oil pump, when an engine is in cold start, the rotating speed is slow, a crankshaft cannot provide sufficient power for the oil pump, and the operation time of about 10 seconds is needed for establishing proper oil lubrication pressure. During which the surfaces of the friction pairs inside the engine are in a semi-dry friction or dry friction state. Over the long term, wear of moving parts of the engine is accelerated, reducing the service life of the parts, and therefore it is necessary to increase the pre-lubrication device of the engine.
The existing pre-lubrication devices mainly have the following forms:
a starter drive type. The lubricating device is characterized in that an oil pump is additionally arranged at one end of a commutator of an engine starter armature shaft, and a control circuit is additionally arranged. Before starting, the starter drives the additional engine oil pump to work, and the engine oil in the oil pan is pressed into the main oil duct to provide lubricating oil for the friction pairs of various moving parts.
Driven by an independent motor. The structure and principle of the pre-lubricating device are different from those of a starter driving type, and the pre-lubricating device mainly differs from a starter driving type in that a power source is changed into a direct current motor, and a control circuit is also greatly different.
The two pre-lubrication devices have the disadvantages that an additional oil pump, a power source, a lubrication oil way and the like are required to be added, the device is complex in structure and high in manufacturing cost, the direct current motor can greatly depend on the power of a storage battery during working, and pre-lubrication cannot be well completed when the power of the storage battery is insufficient in winter.
And (4) an energy storage type. The pre-lubricating device does not need to additionally arrange an oil pump and a motor, only needs to arrange an electric control type pressure engine oil accumulator on the main oil duct of the engine, stores oil when the engine normally runs, and releases pressure engine oil from the accumulator into the main oil duct to provide lubricating engine oil for each friction pair when the engine is started next time. The disadvantage of this approach is that a large oil reservoir is required, the space occupied is large and the oil reservoir is limited, and when the engine is not started successfully for the first time, the accumulator cannot be pre-lubricated for the second engine start without the oil reservoir process.
A pneumatic motor is a pneumatic actuator in a pneumatic transmission that converts the pressure of compressed gas into mechanical energy and produces rotational motion. Compared with the motor, the energy source of the motor is compressed air stored in a high-pressure air tank when the whole vehicle is braked, the starting torque is large, the vehicle can be started with load, and the work is stable and safe. If the pneumatic motor driven by the high-pressure gas tank is considered to be used for providing power for the lubricating system before the engine is started to perform starting pre-lubrication, the abrasion among the friction pairs can be reduced, and the service lives of the engine and parts thereof are effectively prolonged.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems occurring in the prior art oil pump.
Therefore, the invention aims to provide an auxiliary pneumatic motor driving single-pair gear type oil pump, when an engine needs to be started, an ECU controls the electromagnetic valve to be opened, so that the pneumatic motor drives the oil pump to pump oil, and after ten seconds, the electromagnetic valve is automatically switched off, so that the pre-lubrication process before the engine is started is completed, the electric energy of an automobile storage battery does not need to be consumed, the engine can be completely pre-lubricated only by installing one oil pump, and the cost is saved.
To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:
an auxiliary pneumatic motor driven single pair gear type oil pump comprising: the device comprises an oil pump shell, an auxiliary gear shaft, a semicircular key, a transmission gear, a locknut, a main gear shaft, a semicircular key, a first bolt, an oil pump cover, a main gear, a first roller, a pneumatic motor shell, a blade, a rotor, a second roller, a second bolt, a high-pressure gas tank, an ECU and an electromagnetic valve;
the transmission gear is connected with the main gear shaft through a semicircular key and is fixed by a locking nut and a shaft shoulder of the main gear shaft;
the main gear is connected with the main gear shaft through an overrunning clutch A and is meshed with the auxiliary gear during rotation;
the pinion is connected with the pinion shaft through a semicircular key;
the oil pump cover and the oil pump shell are fixedly connected by six bolts;
the rotor of the pneumatic motor is connected with the auxiliary gear shaft through an overrunning clutch B;
the blades of the pneumatic motor are positioned in grooves in the rotor;
the pneumatic motor shell is fixedly connected to the oil pump through three bolts;
and high-pressure gas in the high-pressure gas tank flows through the electromagnetic valve and the air inlet of the pneumatic motor through the pipeline and is discharged from the primary and secondary exhaust ports.
As a preferable aspect of the auxiliary pneumatic motor driving single-pair gear type oil pump of the present invention, wherein: the three first bolts and the three second bolts fix the oil pump cover and the oil pump shell, and the three second bolts fix the pneumatic motor shell and the oil pump.
As a preferable aspect of the auxiliary pneumatic motor driving single-pair gear type oil pump of the present invention, wherein: the overrunning clutch A is formed by trapezoid grooves in the main gear shaft, the first roller and the main gear, the overrunning clutch B is formed by trapezoid grooves in the auxiliary gear shaft, the second roller and the pneumatic motor rotor, the first roller and the second roller have two working states, one of the two working states can freely roll in the trapezoid grooves, the first roller and the second roller cannot transfer force at the moment, and the other one of the two working states is clamped by the outer surfaces of the main gear shaft and the auxiliary gear shaft and the inner surfaces of the trapezoid grooves, so that the force transfer between the main gear shaft and the auxiliary gear shaft and between the main gear and the auxiliary gear or the rotor is realized.
As a preferable aspect of the auxiliary pneumatic motor driving single-pair gear type oil pump of the present invention, wherein: the electromagnetic valve is preset with ten-second automatic closing time.
As a preferable aspect of the auxiliary pneumatic motor driving single-pair gear type oil pump of the present invention, wherein: and high-pressure gas in the high-pressure gas tank is stored when the whole vehicle is braked.
As a preferable aspect of the auxiliary pneumatic motor driving single-pair gear type oil pump of the present invention, wherein: and high-pressure gas in the high-pressure gas tank is controlled by a solenoid valve to enter a gas inlet of the pneumatic motor.
As a preferable aspect of the auxiliary pneumatic motor driving single-pair gear type oil pump of the present invention, wherein: and lubricating oil at an oil inlet of the oil pump shell is from an oil pan of the engine.
Compared with the prior art: when the vehicle is ready to start and the key is ON, the ECU controls the electromagnetic valve to open, high-pressure gas stored in the high-pressure gas tank enters the air inlet of the pneumatic motor through the pipeline, the pneumatic motor drives the oil pump to rotate at a high speed, and the oil pump rapidly pumps the oil in the oil pan into an engine oil channel at a high rotating speed to pre-lubricate the engine during starting. After ten seconds, the electromagnetic valve is automatically closed, the pneumatic motor gradually stops working, the pre-lubrication process is finished, and the lubricating oil film between the pressure engine oil in the oil duct and the friction pair can meet the requirement of starting the engine. When the key rotates to START, the engine is started by the starting motor, the oil pump is driven by the crankshaft to run, oil pressure is continuously provided for the lubricating system, the auxiliary pneumatic motor drives the single-pair gear type oil pump, when the engine needs to be started, the ECU controls the electromagnetic valve to be opened, so that the pneumatic motor drives the oil pump to pump oil, after ten seconds, the electromagnetic valve is automatically switched off, thus the pre-lubricating process before the engine is started is finished, the electric energy of an automobile storage battery does not need to be consumed, the engine can be completely pre-lubricated only by installing one oil pump, and the cost is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:
FIG. 1 is a cross-sectional view of an auxiliary pneumatic motor driven single-pair gear type oil pump according to the present invention;
FIG. 2 is a schematic structural view of a section A-A of the pneumatic motor shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a section B-B of the single-pair gear type oil pump shown in FIG. 1;
fig. 4 is a schematic connection diagram of the high-pressure gas tank, the solenoid valve and the pneumatic motor.
In the figure: the engine oil pump comprises an engine oil pump shell 1, a pinion 2, a pinion shaft 3, a semi-circular key 4, a transmission gear 5, a locknut 6, a main gear shaft 7, a semi-circular key 8, a first bolt 9, an engine oil pump cover 10, a main gear 11, a first roller 12, a pneumatic motor shell 13, a blade 14, a rotor 15, a second roller 16, a second bolt 17, a high-pressure air tank 18, an ECU19 and an electromagnetic valve 20.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The invention provides an auxiliary pneumatic motor driving single-pair gear type oil pump, when an engine needs to be started, an ECU controls an electromagnetic valve to be opened, so that the pneumatic motor drives the oil pump to pump oil, after ten seconds, the electromagnetic valve is automatically switched off, thus completing the pre-lubrication process before the engine is started, the electric energy of an automobile storage battery is not consumed, the engine can be completely pre-lubricated by only installing one oil pump, and the cost is saved, please refer to the figure 1, the figure 2, the figure 3 and the figure 4, and the auxiliary pneumatic motor driving single-pair gear type oil pump comprises the following steps: the engine oil pump comprises an engine oil pump shell 1, a pinion 2, a pinion shaft 3, a semi-circular key 4, a transmission gear 5, a locknut 6, a main gear shaft 7, a semi-circular key 8, a first bolt 9, an engine oil pump cover 10, a main gear 11, a first roller 12, a pneumatic motor shell 13, a blade 14, a rotor 15, a second roller 16, a first bolt 17, a high-pressure air tank 18, an ECU19 and an electromagnetic valve 20;
referring to fig. 1, 2, 3 and 4 again, the transmission gear 5 is connected to the main gear shaft 7 through a half-round key 8 and is fixed by the lock nut 6 and a shoulder of the main gear shaft 7;
the main gear 11 is connected with the main gear shaft 7 through an overrunning clutch A and is meshed with the pinion 2 during rotation;
the pinion 2 is connected with a pinion shaft through a semicircular key 4;
the oil pump cover 10 and the oil pump shell 1 are fixedly connected by six bolts;
the rotor 15 of the pneumatic motor is connected with the pinion shaft 3 through an overrunning clutch B;
the blades 14 of the pneumatic motor are located in grooves in the rotor 15;
the pneumatic motor shell 13 is fixedly connected to the oil pump through three bolts;
the high-pressure gas in the high-pressure gas tank 18 flows through the electromagnetic valve 20 and the air inlet of the pneumatic motor through pipelines and is discharged from the primary and secondary exhaust ports;
the overrunning clutch realizes the good matching of two power sources of the engine crankshaft and the pneumatic motor. The main gear shaft 7, the first roller 12 and the trapezoidal groove in the main gear 11 form an overrunning clutch A, and the auxiliary gear shaft 3, the second roller 16 and the trapezoidal groove in the pneumatic motor rotor 15 form an overrunning clutch B. When the pneumatic motor works, the rotor 15 rotates clockwise relative to the pinion shaft 3, the second roller 16 is clamped in an acute angle formed by the surface of the pinion shaft 3 and the inner surface of the trapezoid groove, the main gear 11 moves anticlockwise relative to the main gear shaft 7, and the first roller 12 freely rolls in an obtuse angle formed by the inner surface of the trapezoid groove and the surface of the main gear shaft 11, so that transmission between the pneumatic motor and the oil pump and separation between the oil pump and the main gear shaft 7 are realized. Similarly, when the crankshaft drives the oil pump through the transmission gear 5, the main gear shaft 7 moves anticlockwise relative to the main gear 11, the pinion shaft 3 rotates clockwise relative to the rotor 15, the first roller 12 is blocked, and the second roller 16 rolls freely, so that transmission between the oil pump and the main gear shaft 7 and separation between the oil pump and the pneumatic motor are realized.
When the vehicle is ready to start and the key is turned ON, the ECU19 controls the electromagnetic valve 20 to open, the high-pressure gas stored in the high-pressure gas tank 18 enters the air inlet of the pneumatic motor through the pipeline, the pneumatic motor drives the oil pump to rotate at high speed, and the oil pump rapidly pumps the oil in the oil pan into the oil channel of the engine at high rotating speed to pre-lubricate the engine during starting. After ten seconds, the electromagnetic valve 20 is automatically closed, the pneumatic motor gradually stops working, the pre-lubrication process is finished, and the lubricating oil film between the pressure engine oil in the oil passage and the friction pair can meet the requirement of starting the engine. When the key rotates to START, the engine is started by the starter motor, the oil pump is driven by the crankshaft to run, and oil pressure is continuously provided for the lubricating system.
Referring to fig. 1 again, the oil pump cover 10 and the oil pump housing 1 are fixed by three first bolts 9 and three first bolts 17, and the air motor housing 13 and the oil pump are fixed by three first bolts 17.
Referring again to fig. 1, 2 and 3, the main gear shaft 7, the first rollers 12, and the trapezoidal grooves in the main gear 11 form an overrunning clutch a, and the pinion shaft 3, the second rollers 16, and the trapezoidal grooves in the pneumatic motor rotor 15 form an overrunning clutch B. The first roller 12 and the second roller 16 have two working states, one can freely roll in the trapezoidal groove, the first roller 12 and the second roller 16 cannot transmit force, and the other is clamped by the outer surfaces of the main gear shaft 7 and the pinion shaft 3 and the inner surface of the trapezoidal groove, so that the force transmission between the main gear shaft 7 and the pinion shaft 3 and between the main gear 11 and the pinion 2 or the rotor 15 is realized.
Referring again to fig. 4, the solenoid valve 20 is preset for a ten second auto-close time, and when the key is ON, the ECU19 controls the solenoid valve 20 to open.
Referring again to fig. 4, the high pressure gas from the high pressure gas tank 18 is stored during vehicle braking.
Referring again to fig. 4, the high pressure gas from the high pressure gas tank 18 is controlled by a solenoid valve 20 to enter the air inlet of the air motor.
Referring to fig. 3 again, the lubricating oil at the oil inlet of the oil pump housing 1 comes from the engine oil pan.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. An auxiliary pneumatic motor driving single-pair gear type oil pump is characterized by comprising: the engine oil pump comprises an engine oil pump shell (1), an auxiliary gear (2), an auxiliary gear shaft (3), a half-round key (4), a transmission gear (5), a locknut (6), a master gear shaft (7), a half-round key (8), a first bolt (9), an engine oil pump cover (10), a master gear (11), a first roller (12), a pneumatic motor shell (13), blades (14), a rotor (15), a second roller (16), a second bolt (17), a high-pressure air tank (18), an ECU (19) and an electromagnetic valve (20);
the transmission gear (5) is connected with the main gear shaft (7) through a semicircular key (8) and is fixed by a locking nut (6) and a shaft shoulder of the main gear shaft (7);
the main gear (11) is connected with the main gear shaft (7) through an overrunning clutch A and is meshed with the pinion (2) during rotation;
the pinion (2) is connected with a pinion shaft through a semicircular key (4);
the oil pump cover (10) and the oil pump shell (1) are fixedly connected through six bolts;
the rotor (15) of the pneumatic motor is connected with the pinion shaft (3) through an overrunning clutch B;
the blades (14) of the pneumatic motor are located in grooves in the rotor (15);
the pneumatic motor shell (13) is fixedly connected to the oil pump through three bolts;
high-pressure gas in the high-pressure gas tank (18) flows through the electromagnetic valve (20) and the air inlet of the air motor through pipelines and is discharged from the primary exhaust port and the secondary exhaust port.
2. The auxiliary air motor drive single-pair oil pump according to claim 1, characterized in that three first bolts (9) and three second bolts (17) fix the oil pump cover (10) and the oil pump housing (1), and three second bolts (17) fix the air motor housing (13) and the oil pump.
3. An auxiliary pneumatic motor driven single pair gear oil pump according to claim 1, it is characterized in that the main gear shaft (7), the first roller (12) and the trapezoidal groove in the main gear (11) form an overrunning clutch A, the auxiliary gear shaft (3), the second roller (16) and the trapezoidal groove in the pneumatic motor rotor (15) form an overrunning clutch B, the first roller (12) and the second roller (16) have two working states, one can freely roll in the trapezoidal groove, the first roller (12) and the second roller (16) cannot transmit force at the moment, and the other is clamped by the outer surfaces of the main gear shaft (7) and the pinion shaft (3) and the inner surface of the trapezoidal groove, so that the force transmission between the main gear shaft (7) and the pinion shaft (3) and between the main gear (11) and the pinion (2) or the rotor (15) is realized.
4. An auxiliary pneumatic motor-driven single-pinion oil pump according to claim 1, characterized in that the electromagnetic valve (20) is preset with an automatic closing time of ten seconds.
5. The auxiliary pneumatic motor-driven single-pinion oil pump according to claim 1, characterized in that the high-pressure gas of the high-pressure gas tank (18) is stored at the time of vehicle braking.
6. An auxiliary air motor drive single pair oil pump according to claim 1, characterized in that the high pressure gas of the high pressure gas tank (18) is controlled by a solenoid valve (20) into the air intake of the air motor.
7. An auxiliary pneumatic motor driven single-pinion oil pump according to claim 1, characterized in that the lubricating oil at the oil inlet of the oil pump housing (1) comes from the engine oil sump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010919428.1A CN111980916A (en) | 2020-09-04 | 2020-09-04 | Auxiliary pneumatic motor driving single-pair gear type oil pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010919428.1A CN111980916A (en) | 2020-09-04 | 2020-09-04 | Auxiliary pneumatic motor driving single-pair gear type oil pump |
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| Publication Number | Publication Date |
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| CN111980916A true CN111980916A (en) | 2020-11-24 |
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| CN202010919428.1A Pending CN111980916A (en) | 2020-09-04 | 2020-09-04 | Auxiliary pneumatic motor driving single-pair gear type oil pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006897A (en) * | 2021-04-26 | 2021-06-22 | 吉林大学 | Engine gear pump structure with pre-lubrication function and control method thereof |
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| US5474428A (en) * | 1992-12-10 | 1995-12-12 | Honda Giken Kogyo Kabushiki Kaisha | Oil pump driving device for transmission |
| JPH0956009A (en) * | 1995-06-06 | 1997-02-25 | Aqueous Res:Kk | Hybrid vehicle |
| CN110274143A (en) * | 2018-12-21 | 2019-09-24 | 吉林大学 | A kind of engine oil pump with air motor driving pre-lubrication device |
| CN110966182A (en) * | 2019-12-25 | 2020-04-07 | 吉林大学 | Vane type oil pump and application thereof in engine lubricating system |
| CN110985372A (en) * | 2019-12-25 | 2020-04-10 | 吉林大学 | Oil pump and application thereof in engine lubricating system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5474428A (en) * | 1992-12-10 | 1995-12-12 | Honda Giken Kogyo Kabushiki Kaisha | Oil pump driving device for transmission |
| JPH0956009A (en) * | 1995-06-06 | 1997-02-25 | Aqueous Res:Kk | Hybrid vehicle |
| CN110274143A (en) * | 2018-12-21 | 2019-09-24 | 吉林大学 | A kind of engine oil pump with air motor driving pre-lubrication device |
| CN110966182A (en) * | 2019-12-25 | 2020-04-07 | 吉林大学 | Vane type oil pump and application thereof in engine lubricating system |
| CN110985372A (en) * | 2019-12-25 | 2020-04-10 | 吉林大学 | Oil pump and application thereof in engine lubricating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113006897A (en) * | 2021-04-26 | 2021-06-22 | 吉林大学 | Engine gear pump structure with pre-lubrication function and control method thereof |
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Application publication date: 20201124 |