CN111577604A - Series pump - Google Patents

Series pump Download PDF

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Publication number
CN111577604A
CN111577604A CN202010587174.8A CN202010587174A CN111577604A CN 111577604 A CN111577604 A CN 111577604A CN 202010587174 A CN202010587174 A CN 202010587174A CN 111577604 A CN111577604 A CN 111577604A
Authority
CN
China
Prior art keywords
pump
oil
shaft
cavity
oil pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010587174.8A
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Chinese (zh)
Inventor
刘振
董仁泽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Tengzhi Electromechanical Co ltd
Original Assignee
Hunan Tengzhi Electromechanical Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Tengzhi Electromechanical Co ltd filed Critical Hunan Tengzhi Electromechanical Co ltd
Priority to CN202010587174.8A priority Critical patent/CN111577604A/en
Publication of CN111577604A publication Critical patent/CN111577604A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • 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
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • 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
    • F16N23/00—Special adaptations of check valves
    • 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
    • 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
    • F01M2001/0284—Pressure lubrication using lubricating pumps mounting of the pump
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Abstract

The invention provides a series pump which comprises a pump body, a first pump cover, blades, a rotor, a vacuum pump transmission shaft, a vacuum pump transmission gear, an oil pump driving wheel, a second pump cover, an oil pump transmission shaft, an oil pump driven wheel and an oil pump driven shaft, wherein the pump body is provided with a first pump cavity and a second pump cavity. Relevant parts of the oil pump are arranged in the first pump cavity and are sealed through the first pump cover, relevant parts of the vacuum pump are arranged in the second pump cavity and are sealed through the second pump cover, and therefore the oil pump and the vacuum pump are integrated on the same pump body, the weight of the whole engine can be reduced, the power consumption of the engine can be reduced, and meanwhile, machining and assembling procedures can be reduced.

Description

Series pump
Technical Field
The invention relates to the technical field of engine lubricating systems and vacuum pumps, in particular to a series pump.
Background
Automobile engines are generally equipped with oil pumps to provide oil pressure for engine lubrication systems, and vacuum pumps are widely used as vacuum sources of brake systems along with popularization of supercharged engines, GDI engines, diesel engines and other types. The vacuum pump and the oil pump are generally provided with respective drive forms, such as: the camshaft drives the vacuum pump through a coupling or a belt wheel, and the oil pump is driven by a crankshaft through a gear, a belt and the like.
At present, a mechanical vacuum pump matched with an engine is designed by matching a single rotary vane or double vanes with an oval or Pascal vortex line cavity, but if the mechanical vacuum pump is linked with an oil pump and meets the requirement of a vacuum source during braking of a commercial vehicle, a common matching structure taking PF or PPS as the rotary vane and PEEK as the sliding vane cannot meet the working condition above 5000rpm (the maximum rotating speed of the common mechanical vacuum pump is about 3000 rpm), and a common failure mode is that the rotary vane is rapidly abraded or broken.
The rotor, the rotor vane and the vane need lubricating oil to provide lubrication and take away heat generated by friction between the rotor vane and the inner wall of the rotor, the sliding vane and the inner wall of the pump cavity when rotating at high speed, the single-rotor vane or double-rotor vane mechanical vacuum pump has a simple structure, a lubricating oil passage is usually directly designed on the pump body to lead to the small end of the rotor and then flow into the pump cavity, and the design control points are the lubricating oil pressure and the diameter of a lubricating oil path. After the rotating speed exceeds 5000rpm, in order to meet the requirement that the lubricating oil can timely and fully lubricate the rotor and the blades and take away heat, a special lubricating oil path design is needed.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a series pump which can simultaneously supply oil to an engine lubricating system and provide a vacuum source for a braking system, thereby reducing the weight of the whole engine and reducing the power consumption of the engine.
In order to solve the technical problems, the technical scheme of the invention is as follows: a series pump comprises a pump body, a first pump cover, blades, a rotor, a vacuum pump transmission shaft, a vacuum pump transmission gear, an oil pump driving wheel, a second pump cover, an oil pump transmission shaft, an oil pump driven wheel and an oil pump driven shaft; the pump body is provided with a first pump cavity and a second pump cavity, the blades and the rotor are arranged in the first pump cavity through a vacuum pump transmission shaft, the inner side end of the vacuum pump transmission shaft is rotatably arranged in a blind hole at the bottom of the first pump cavity, the outer side end of the vacuum pump transmission shaft penetrates out of a shaft hole of the first pump cover and is fixedly arranged in a shaft hole of a vacuum pump transmission gear, and the first pump cover covers the first pump cavity and is fixed on the pump body through screws; the oil pump driving wheel is fixedly arranged on the oil pump driving shaft, the oil pump driven wheel is fixedly arranged on the oil pump driven shaft, the inner side ends of the oil pump driving shaft and the oil pump driven shaft are respectively and rotatably arranged in two blind holes at the bottom of the second pump cavity, the outer side end of the oil pump driving shaft penetrates out of a shaft hole of the second pump cover and is fixedly arranged in the shaft hole of the oil pump transmission gear, the outer side end of the oil pump driven shaft is rotatably arranged in the blind hole of the second pump cover, the oil pump driving wheel and the oil pump driven wheel are mutually meshed in the second pump cavity, and the second pump cover covers the second; the vacuum pump transmission gear and the oil pump transmission gear are meshed with each other outside the pump body; the first pump cover is also provided with a valve hole, a damping valve is arranged in the valve hole, the damping valve comprises a valve body, a rubber spring and a support ring, the tail part of the valve body is inserted into the damping hole on the pump body, and the rubber spring is used for being pressed on an engine cylinder body and is attached to a lubricating oil channel of the cylinder body; and the damping valve is communicated with the inner section of the shaft hole of the first pump cover through a lubricating oil passage.
According to the technical scheme, the oil pump and the vacuum pump are integrated on the same pump body, so that the weight of the whole engine can be reduced, the power consumption of the engine can be reduced, and the machining and assembling procedures can be reduced. When the engine crankshaft end gear is used, the engine crankshaft end gear is meshed with the oil pump transmission gear, and the oil pump driving wheel and the oil pump transmission gear are coaxially assembled, so that the oil pump transmission gear is meshed with the vacuum pump transmission gear simultaneously, and power can be transmitted to the vacuum pump and the oil pump simultaneously. Because the damping valve and the lubricating oil channel are arranged on the first pump cover, lubricating oil can flow into the end face and the central part of the rotor through the lubricating oil channel on the first pump cover and flows into the first pump cavity and the blade groove through the end face gap between the pump cover and the rotor to lubricate the large end faces on the two sides of the blade, and after the lubricating oil flows into the bottom of the first pump cavity, the lubricating oil can be stored and maintained on the lower end face of the rotor, so that the lubricating problem of the vacuum pump is solved.
Furthermore, the bottom of the first pump cavity is provided with an oil duct which is convenient for lubricating oil to enter the blind hole, so that the transmission shaft of the vacuum pump is cooled and lubricated.
Further, two blind holes at the bottom of the second pump cavity are communicated with the oil inlet through oil passages. When the transmission gear of the oil pump rotates, a negative pressure is generated at an oil inlet of the oil pump, and lubricating oil enters the second pump cavity and the blind hole at the bottom, so that the lubrication and the cooling of the driving shaft and the driven shaft of the oil pump are realized.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a tandem pump according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a damping valve according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a first pump cover lubrication gallery in an embodiment of the present invention;
FIG. 4 is a cross-sectional axial end view of a vacuum pump drive shaft in an embodiment of the present invention;
FIG. 5 is a schematic diagram of a lubrication circuit of a vacuum pump according to an embodiment of the present invention;
the reference signs are:
1-one-way valve 2-pump body 3-damping valve
3 a-valve body 3 b-rubber spring 3 c-support ring
4-first pump cover 5-blade 6-rotor
7-vacuum pump transmission shaft 8-vacuum pump transmission gear
9-engine oil pump transmission gear 10-engine oil pump driving wheel
11-second pump cover 12-oil pump transmission shaft
13-driven wheel of oil pump 14-driven shaft of oil pump
15-lubricating oil duct.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
As shown in fig. 1 to 3, the preferred embodiment of the present invention is: a series pump comprises a one-way valve 1, a pump body 2, a first pump cover 4, blades 5, a rotor 6, a vacuum pump transmission shaft 7, a vacuum pump transmission gear 8, an oil pump transmission gear 9, an oil pump driving wheel 10, a second pump cover 11, an oil pump transmission shaft 12, an oil pump driven wheel 13 and an oil pump driven shaft 14; the pump body 2 is provided with a first pump cavity and a second pump cavity, the blades 5 and the rotor 6 are arranged in the first pump cavity through a vacuum pump transmission shaft 7, the inner side end of the vacuum pump transmission shaft 7 is rotatably arranged in a blind hole at the bottom of the first pump cavity, the outer side end of the vacuum pump transmission shaft 7 penetrates out of a shaft hole of the first pump cover 4 and is fixedly arranged in a shaft hole of a vacuum pump transmission gear 8, and the first pump cover 4 covers the first pump cavity and is fixed on the pump body 2 through screws; the oil pump driving wheel 10 is fixedly arranged on an oil pump driving shaft 12, the oil pump driven wheel 13 is fixedly arranged on an oil pump driven shaft 14, the inner side ends of the oil pump driving shaft 12 and the oil pump driven shaft 14 are respectively and rotatably arranged in two blind holes at the bottom of a second pump cavity, the outer side end of the oil pump driving shaft 7 penetrates out of a shaft hole of the second pump cover 11 and is fixedly arranged in the shaft hole of an oil pump transmission gear 9, the outer side end of the oil pump driven shaft 14 is rotatably arranged in the blind hole of the second pump cover 11, the oil pump driving wheel 10 and the oil pump driven wheel 13 are mutually meshed in the second pump cavity, and the second pump cover 11 covers the second pump; the vacuum pump transmission gear 8 and the oil pump transmission gear 9 are meshed with each other outside the pump body; the first pump cover 4 is also provided with a valve hole, a damping valve 3 is installed in the valve hole, the damping valve 3 comprises a valve body 3a, a rubber spring 3b and a support ring 3c, the tail part of the valve body 3a is inserted into the damping hole on the pump body 2, and the rubber spring 3b is used for being pressed on an engine cylinder body and is attached to a lubricating oil channel of the cylinder body; and the damping valve 3 is communicated with the inner section of the shaft hole of the first pump cover through a lubricating oil passage 15.
When the engine crankshaft end gear is used, the engine crankshaft end gear is meshed with the oil pump transmission gear 9, and the oil pump driving wheel 10 and the oil pump transmission gear 9 are coaxially assembled, so that the oil pump transmission gear 9 is meshed with the vacuum pump transmission gear 8 at the same time, and power can be transmitted to the vacuum pump and the oil pump at the same time.
As shown in fig. 5, the lubricating oil flows into the end face and the central part of the rotor through the lubricating oil channel 15 on the first pump cover 4, so as to lubricate and cool the vacuum pump; as shown in fig. 4, the bottom of the first pump chamber is provided with an oil passage for facilitating the lubricating oil to enter the blind hole, so as to cool and lubricate the transmission shaft 7 of the vacuum pump.
As shown in fig. 1, the two blind holes at the bottom of the second pump cavity are communicated with the oil inlet through oil passages, when the transmission gear 9 of the oil pump rotates, the oil inlet of the oil pump generates negative pressure, and lubricating oil enters the second pump cavity and simultaneously enters the blind holes at the bottom, so that the lubrication and cooling of the driving shaft and the driven shaft of the oil pump are realized.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit and scope of the present invention.
Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.

Claims (3)

1. An in-line pump characterized by: the pump comprises a pump body (2), a first pump cover (4), blades (5), a rotor (6), a vacuum pump transmission shaft (7), a vacuum pump transmission gear (8), an oil pump transmission gear (9), an oil pump driving wheel (10), a second pump cover (11), an oil pump transmission shaft (12), an oil pump driven wheel (13) and an oil pump driven shaft (14); the pump body (2) is provided with a first pump cavity and a second pump cavity, the blades (5) and the rotor (6) are installed in the first pump cavity through a vacuum pump transmission shaft (7), the inner side end of the vacuum pump transmission shaft (7) is rotatably installed in a blind hole in the bottom of the first pump cavity, the outer side end of the vacuum pump transmission shaft (7) penetrates out of a shaft hole of the first pump cover (4) and is fixedly installed in a shaft hole of a vacuum pump transmission gear (8), and the first pump cover (4) covers the first pump cavity and is fixed on the pump body (2) through screws; the oil pump driving wheel (10) is fixedly arranged on the oil pump driving shaft (12), the oil pump driven wheel (13) is fixedly arranged on the oil pump driven shaft (14), the inner side ends of the oil pump driving shaft (12) and the oil pump driven shaft (14) are respectively and rotatably arranged in two blind holes at the bottom of the second pump cavity, the outer side end of the oil pump driving shaft (12) penetrates out of the shaft hole of the second pump cover (11) and is fixedly arranged in the shaft hole of the oil pump transmission gear (9), the outer side end of the oil pump driven shaft (14) is rotatably arranged in the blind hole of the second pump cover (11), the oil pump driving wheel (10) and the oil pump driven wheel (13) are mutually meshed in the second pump cavity, and the second pump cover (11) covers the second pump cavity and is fixed on the; the vacuum pump transmission gear (8) and the oil pump transmission gear (9) are meshed with each other outside the pump body; the first pump cover (4) is further provided with a valve hole, a damping valve (3) is installed in the valve hole, the damping valve (3) comprises a valve body (3 a), a rubber spring (3 b) and a support ring (3 c), the tail part of the valve body (3 a) is inserted into the damping hole in the pump body (2), and the rubber spring (3 b) is used for being pressed on an engine cylinder body and is attached to a lubricating oil channel of the cylinder body; and the damping valve (3) is communicated with the inner section of the shaft hole of the first pump cover through a lubricating oil passage (15).
2. The tandem pump of claim 1 wherein: the bottom of the first pump cavity is provided with an oil passage which is convenient for lubricating oil to enter the blind hole, so that the vacuum pump transmission shaft (7) is cooled and lubricated.
3. The tandem pump according to claim 1 or 2, wherein: and the two blind holes at the bottom of the second pump cavity are communicated with the oil inlet through oil ducts.
CN202010587174.8A 2020-06-24 2020-06-24 Series pump Pending CN111577604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010587174.8A CN111577604A (en) 2020-06-24 2020-06-24 Series pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010587174.8A CN111577604A (en) 2020-06-24 2020-06-24 Series pump

Publications (1)

Publication Number Publication Date
CN111577604A true CN111577604A (en) 2020-08-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010587174.8A Pending CN111577604A (en) 2020-06-24 2020-06-24 Series pump

Country Status (1)

Country Link
CN (1) CN111577604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114909290A (en) * 2022-04-18 2022-08-16 金华市威科工贸有限公司 Oil inlet quantity adjustable vacuum pump

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4586468A (en) * 1984-10-05 1986-05-06 General Motors Corporation Tandem pump assembly
DE102006030917A1 (en) * 2006-06-26 2007-12-27 Pierburg Gmbh Oil pump and vacuum pump module for e.g. petrol engine, has driven gears connected with each other for collectively driving oil and vacuum pumps that are arranged in common housing with common mounting surface
CN102900519A (en) * 2012-09-24 2013-01-30 长城汽车股份有限公司 Integrated structure of oil pump and vacuum pump of automobile engine
CN204783654U (en) * 2015-05-12 2015-11-18 南京依维柯汽车有限公司 Sundstrand pump
CN106014909A (en) * 2016-05-18 2016-10-12 宁波圣龙汽车动力系统股份有限公司 Double pump
CN208364382U (en) * 2018-06-22 2019-01-11 富奥汽车零部件股份有限公司 Lubrication and vacuum one pumps in series
DE202019107293U1 (en) * 2018-12-31 2020-03-30 Stackpole International Engineered Products, Ltd. Pump assembly with two pumps arranged in a single housing
CN212454826U (en) * 2020-06-24 2021-02-02 湖南腾智机电有限责任公司 Series pump

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4586468A (en) * 1984-10-05 1986-05-06 General Motors Corporation Tandem pump assembly
DE102006030917A1 (en) * 2006-06-26 2007-12-27 Pierburg Gmbh Oil pump and vacuum pump module for e.g. petrol engine, has driven gears connected with each other for collectively driving oil and vacuum pumps that are arranged in common housing with common mounting surface
CN102900519A (en) * 2012-09-24 2013-01-30 长城汽车股份有限公司 Integrated structure of oil pump and vacuum pump of automobile engine
CN204783654U (en) * 2015-05-12 2015-11-18 南京依维柯汽车有限公司 Sundstrand pump
CN106014909A (en) * 2016-05-18 2016-10-12 宁波圣龙汽车动力系统股份有限公司 Double pump
CN208364382U (en) * 2018-06-22 2019-01-11 富奥汽车零部件股份有限公司 Lubrication and vacuum one pumps in series
DE202019107293U1 (en) * 2018-12-31 2020-03-30 Stackpole International Engineered Products, Ltd. Pump assembly with two pumps arranged in a single housing
CN212454826U (en) * 2020-06-24 2021-02-02 湖南腾智机电有限责任公司 Series pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114909290A (en) * 2022-04-18 2022-08-16 金华市威科工贸有限公司 Oil inlet quantity adjustable vacuum pump
CN114909290B (en) * 2022-04-18 2023-09-08 金华市威科工贸有限公司 Vacuum pump with adjustable oil inlet quantity

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