US20110223050A1 - Vane pump apparatus - Google Patents
Vane pump apparatus Download PDFInfo
- Publication number
- US20110223050A1 US20110223050A1 US12/997,888 US99788809A US2011223050A1 US 20110223050 A1 US20110223050 A1 US 20110223050A1 US 99788809 A US99788809 A US 99788809A US 2011223050 A1 US2011223050 A1 US 2011223050A1
- Authority
- US
- United States
- Prior art keywords
- vane pump
- housing
- hydraulic oil
- reservoir tank
- pump apparatus
- 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.)
- Abandoned
Links
Images
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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
-
- 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
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 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 more than one line or surface
-
- 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
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/007—General arrangements of parts; Frames and supporting elements
-
- 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
- F04C13/008—Pumps for submersible use, i.e. down-hole pumping
-
- 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
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
-
- 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
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- 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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
-
- 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
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/48—Conditions of a reservoir linked to a pump or machine
Definitions
- the present disclosure relates to a vane pump apparatus and, more particularly, to a vane pump apparatus which includes a vane pump disposed inside a reservoir tank, thereby preventing an increase in manufacturing costs of the vane pump.
- a body of the vane pump is provided with a cam ring, a vane, and a rotor, which is coupled to a shaft rotated by a drive unit and is thereby rotated by the shaft.
- a reservoir tank for supplying the hydraulic oil to the vane pump is disposed independent of the vane pump and is connected thereto via a connection pipe.
- the reservoir tank may be directly mounted on the vane pump.
- the present disclosure is directed to solving such problems of the related art and an aspect of the present disclosure is to provide a vane pump apparatus that can prevent an increase in manufacturing costs relating to installation of a sealing member for preventing oil leakage from a vane pump, an increase in the difficulty of assembly resulting from the installation of the sealing member, and additional overhaul relating to oil leakage.
- a vane pump apparatus includes: a housing having an outlet channel; a reservoir tank coupled to the housing and receiving hydraulic oil; and a vane pump disposed inside the reservoir tank and discharging the compressed hydraulic oil to the outlet channel.
- the housing may be a sidewall body or a motor housing.
- the vane pump apparatus may further include a sealing ring between the housing and the reservoir tank to prevent leakage of the oil.
- the vane pump may be formed at a front side thereof with a suction port, through which the hydraulic oil is suctioned into the vane pump, and a discharge port communicating with the outlet channel.
- the vane pump may further include a suction connecting channel defined around the suction port and separated from the housing.
- the vane pump apparatus may further include a valve housing, which is integrally formed with the vane pump and on which a relief valve is mounted.
- the vane pump since a vane pump is disposed inside a reservoir tank, which accommodates hydraulic oil, in order to cope with any possible problem related to oil leakage from the vane pump, the vane pump may eliminate a sealing member, thereby reducing manufacturing costs through a decrease in the number of overhaul operations and components of the vane pump apparatus.
- FIG. 1 is an exploded perspective view of a vane pump apparatus according to an exemplary embodiment of the present disclosure
- FIG. 2 shows a suction port and a discharge port of a vane pump of FIG. 1 ;
- FIG. 3 is an assembled perspective view of the vane pump apparatus of FIG. 1 ;
- FIG. 4 is a side-sectional view of the vane pump apparatus taken along line A-A in FIG. 3 ;
- FIG. 5 is a side-sectional view of the vane pump apparatus taken along line B-B in FIG. 3 ;
- FIG. 6 is a cross-sectional view of the vane pump apparatus taken along line C-C in FIG. 4 ;
- FIG. 7 is a front view of the vane pump apparatus taken along line D-D in FIG. 4 , showing a front body of the vane pump apparatus;
- FIG. 8 is a front view of the vane pump apparatus taken along line E-E in FIG. 4 , showing a side plate of the vane pump apparatus.
- FIG. 1 is an exploded perspective view of a vane pump apparatus according to an exemplary embodiment
- FIG. 2 shows a suction port and a discharge port of a vane pump of FIG. 1
- FIG. 3 is an assembled perspective view of the vane pump apparatus of FIG. 1
- FIG. 4 is a side-sectional view of the vane pump apparatus taken along line A-A in FIG. 3
- FIG. 5 is a side-sectional view of the vane pump apparatus taken along line B-B in FIG. 3
- FIG. 6 is a cross-sectional view of the vane pump apparatus taken along line C-C in FIG. 4
- FIG. 7 is a front view of the vane pump apparatus taken along line D-D in FIG. 4 , showing a front body of the vane pump apparatus
- FIG. 8 is a front view of the vane pump apparatus taken along line E-E in FIG. 4 , showing a side plate of the vane pump apparatus.
- the vane pump apparatus includes a housing 70 defining an outlet channel 74 therein, a reservoir tank 1 coupled to the housing 70 and receiving hydraulic oil 90 , and a vane pump 10 disposed inside the reservoir tank 1 and discharging the hydraulic oil 90 to the outside through the outlet channel 74 after compressing the hydraulic oil 90 .
- the housing 70 may be a sidewall or a motor housing, which remains stationary.
- any member may be used as the housing 70 so long as the member can be coupled to the reservoir tank 1 and store the hydraulic oil 90 .
- the housing 70 is formed with the outlet channel 74 connected to a discharge port 84 of the vane pump 10 to receive the compressed hydraulic oil 90 and a hydraulic supply hole 72 connected to the outlet channel 74 to supply the hydraulic oil 90 to a hydraulic line.
- the surface of the housing 70 coupled to the vane pump 10 is formed with fastening holes 77 , to which fastening bolts 18 of the vane pump 10 are coupled, and the outlet channel 74 connected to the discharge port 84 of the vane pump 10 .
- the housing 70 is provided with a shaft connecting hole 76 into which a shaft 80 of the vane pump 10 to be coupled to the housing 70 is inserted.
- the shaft 80 may be operated by a motor secured to a sidewall through the shaft connecting hole 76 or may be directly connected to the motor to be operated by the motor.
- the shaft 80 may be connected to other power sources instead of the motor and may receive rotating power therefrom.
- the reservoir tank 1 is coupled to the housing 70 to define a space in which the hydraulic oil 90 is stored, and may have a variety of shapes including a cylindrical shape.
- the reservoir tank 1 is provided at one side thereof with a connection pipe 3 , which defines a channel for receiving hydraulic oil 90 from outside.
- a sealing ring 79 is disposed between the housing 70 and the reservoir tank 1 to prevent oil leakage.
- a mounting groove is formed on an outer surface of the housing 70 adjoining a side surface of the reservoir tank 1 such that the sealing ring 79 made of a resilient material is mounted on the mounting groove.
- Interfaces between the housing 70 and the reservoir tank 1 may be formed with threads for fastening the housing 70 and the reservoir tank 1 to each other.
- the housing 70 and the reservoir tank 1 may be coupled to each other in a variety of other ways.
- the vane pump 10 includes a cam ring 50 having an inner surface of a major arc portion and an inner surface of a minor arc portion, a rotor 14 mounted inside the cam ring 50 and having guide grooves radially formed on the rotor 14 , and a plurality of vanes 34 inserted into the guide grooves and moving along the inner surfaces of the cam ring 50 .
- the vane pump 10 is divided into a front body 60 and a rear cover 12 which are coupled to each other by the fastening bolts 18 and define an outer appearance of the vane pump 10 .
- the cam ring 50 accommodating the rotor 14 therein is mounted on an upper side of the front body 60 , and a side plate 40 , a leaf spring 32 and the rear cover 12 are sequentially mounted on the upper side of the cam ring 50 and the rotor 14 .
- the front body 60 constituting a front side of the vane pump 10 is formed with suction ports 82 , through which the hydraulic oil 90 is suctioned into the vane pump 10 , and the discharge port 84 which communicates with the outlet channel 74 to discharge the compressed hydraulic oil 90 to the outside.
- a step is formed around the discharge port 84 and secured to the housing 70 while adjoining the housing 70 to allow the compressed hydraulic oil 90 to be supplied through the discharge port 84 which communicates with the outlet channel 74 .
- the shaft 80 is rotated by a power source and is coaxially connected to the rotor 14 , so that the rotor 14 and the vanes 34 are rotated when the shaft 80 is rotated.
- the cam ring 50 is formed in a ring shape and an inner surface thereof has an elliptic cylindrical shape, which has two major arcs and two minor arcs residing on orthogonal axes, respectively.
- An inner surface of the cam ring 50 defining the minor arcs has a smaller diameter than an inn surface of the cam ring 50 defining the major arcs.
- the cam ring 50 is formed with suction communication holes 52 communicating with the respective suction ports 82 of the front body 60 and with a discharge communication hole 54 communicating with the discharge port 84 of the front body 60 .
- a discharge path 86 is disposed between the cam ring 50 and the rear cover 12 to define a path through which a fluid flows from a pressure compartment 30 towards the discharge port 84 .
- an inner surface of the front body 60 facing the rotor 14 is formed with two first discharge grooves 65 , 65 ′ such that the discharge port 84 is connected to the first discharge groove 65 ′ located at one side of the inner surface of the front body 60 .
- the front body 60 is also formed on the inner surface thereof with two first suction grooves 66 , 66 ′, which are respectively connected to the suction ports 82 , to guide the hydraulic oil 90 into the vane pump 10 .
- one side of the side plate 40 facing the rotor 14 is formed with second discharge grooves 42 , 42 ′ and second suction grooves 43 , 43 ′.
- a connection hole 44 is provided to the second discharge groove 42 of the side plate 40 so that a portion of the discharged fluid flows to the pressure compartment 30 therethrough.
- the leaf spring 32 is disposed between the side plate 40 and the rear cover 12 to define a space in the pressure compartment 30 while causing the front body 60 , cam ring 50 and side plate 40 to come into close contact with one another by elastic force of the leaf spring 32 .
- the rear cover 12 of the vane pump 10 is integrally formed with a pipe-shaped valve housing 16 , in which a relief valve 20 is integrally formed.
- the relief valve 20 communicates with the pressure compartment 30 , to which the fluid compressed by the vanes 34 is supplied, to maintain a preset hydraulic pressure in the pressure compartment 30 .
- the relief valve 20 includes a valve sheet 22 which is press-fitted into a rear side of the rear cover 12 , a ball member 24 which prevents the compressed fluid from escaping upon rotation of the vanes 34 , a retainer 26 which holds the ball member 24 , a valve spring 27 which compresses the ball member 24 , and an adjustment screw 28 which adjusts a compression force of the valve spring 27 .
- the adjustment screw 28 is formed with an outlet opening, so that the fluid in the relief valve 20 is discharged through the outlet opening and mixed with the hydraulic oil 90 inside the reservoir tank 1 .
- Fastening bolts 19 are inserted into the front body 60 through the rear cover 12 and prevent the side plate 40 and the cam ring 50 from rotating.
- the cam ring 50 , rotor 14 having the vanes 34 mounted thereon, side plate 40 , leaf spring 32 and rear cover 12 are sequentially coupled to the front body 60 to constitute the vane pump 10 according to the embodiment.
- other devices may also be disposed inside the reservoir tank 1 to compress the hydraulic oil 90 and employed as the vane pump 10 according to the embodiment of the present disclosure.
- the vane pump 10 is coupled to the housing 70 by coupling the fastening bolts 18 of the vane pump 10 to the fastening holes 77 of the housing 70 .
- the discharge port 84 of the vane pump 10 is secured to the housing 70 so as to communicate with the outlet channel 74 of the housing 70 and the suction ports 82 of the vane pump 10 are separated from the housing 70 to thereby facilitate introduction of hydraulic oil 90 from the reservoir tank 1 into the suction ports 82 .
- the hydraulic oil 90 stored inside the reservoir tank 1 flows into the suction ports 82 of the front body 60 through the suction connecting channel 88 and is then supplied to suction regions S of the rotor 14 through the second suction grooves 43 , 43 ′ of the side plate 40 via the first suction grooves 66 , 66 ′ of the front body 60 and the suction communication holes 52 of the cam ring 50 .
- the compressed hydraulic oil 90 in the first discharge groove 65 ′ and the second discharge groove 42 ′ communicating with the discharge port 84 is directly discharged into the discharge port 84 through the discharge communication hole 54 .
- the hydraulic oil 90 in the first discharge groove 65 and the second discharge groove 42 which do not directly communicate with the discharge port 84 , flows into the pressure compartment 30 through the connection hole 44 and is then supplied to the discharge port 84 though the discharge path 86 disposed between the cam ring 50 and the rear cover 12 .
- the hydraulic oil 90 flowing into the outlet channel 74 along the discharge port 84 is conveyed to a hydraulic line through the hydraulic supply hole 72 .
- the vane pump 10 is disposed inside the reservoir tank 1 to eliminate a sealing member for preventing oil leakage from the vane pump 10 , thereby enabling a reduction in size and weight of the vane pump 10 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Disclosed herein is a vane pump apparatus. The disclosed vane pump apparatus comprises a housing having an outlet channel; a reservoir tank which stores working oil and which is coupled to the housing; and a vane pump installed inside the reservoir tank to discharge the compressed working oil to the outlet channel.
Description
- The present disclosure relates to a vane pump apparatus and, more particularly, to a vane pump apparatus which includes a vane pump disposed inside a reservoir tank, thereby preventing an increase in manufacturing costs of the vane pump.
- In general, vehicles and other apparatuses using hydraulic pressure are provided with a vane pump to supply hydraulic pressure.
- A body of the vane pump is provided with a cam ring, a vane, and a rotor, which is coupled to a shaft rotated by a drive unit and is thereby rotated by the shaft.
- When the rotor and the vane are rotated, hydraulic oil is suctioned into and compressed by the vane pump and is then supplied to a hydraulic line.
- A reservoir tank for supplying the hydraulic oil to the vane pump is disposed independent of the vane pump and is connected thereto via a connection pipe. Alternatively, the reservoir tank may be directly mounted on the vane pump.
- It should be noted that the above description is provided for understanding of the background art and is not a description of a well-known conventional technique.
- Since a conventional vane pump is entirely or partially exposed to an atmosphere, a rubber sealing member is provided to the vane pump to prevent leakage of oil from the vane pump and it is necessary to overhaul the sealing member to prevent oil leakage from the vane pump, thereby increasing manufacturing costs of the vane pump. Therefore, there is a need for an improved vane pump which does not suffer from such problems.
- The present disclosure is directed to solving such problems of the related art and an aspect of the present disclosure is to provide a vane pump apparatus that can prevent an increase in manufacturing costs relating to installation of a sealing member for preventing oil leakage from a vane pump, an increase in the difficulty of assembly resulting from the installation of the sealing member, and additional overhaul relating to oil leakage.
- In accordance with one aspect, a vane pump apparatus includes: a housing having an outlet channel; a reservoir tank coupled to the housing and receiving hydraulic oil; and a vane pump disposed inside the reservoir tank and discharging the compressed hydraulic oil to the outlet channel.
- The housing may be a sidewall body or a motor housing.
- The vane pump apparatus may further include a sealing ring between the housing and the reservoir tank to prevent leakage of the oil.
- The vane pump may be formed at a front side thereof with a suction port, through which the hydraulic oil is suctioned into the vane pump, and a discharge port communicating with the outlet channel.
- The vane pump may further include a suction connecting channel defined around the suction port and separated from the housing.
- The vane pump apparatus may further include a valve housing, which is integrally formed with the vane pump and on which a relief valve is mounted.
- In the vane pump apparatus according to embodiments of the present disclosure, since a vane pump is disposed inside a reservoir tank, which accommodates hydraulic oil, in order to cope with any possible problem related to oil leakage from the vane pump, the vane pump may eliminate a sealing member, thereby reducing manufacturing costs through a decrease in the number of overhaul operations and components of the vane pump apparatus.
-
FIG. 1 is an exploded perspective view of a vane pump apparatus according to an exemplary embodiment of the present disclosure; -
FIG. 2 shows a suction port and a discharge port of a vane pump ofFIG. 1 ; -
FIG. 3 is an assembled perspective view of the vane pump apparatus ofFIG. 1 ; -
FIG. 4 is a side-sectional view of the vane pump apparatus taken along line A-A inFIG. 3 ; -
FIG. 5 is a side-sectional view of the vane pump apparatus taken along line B-B inFIG. 3 ; -
FIG. 6 is a cross-sectional view of the vane pump apparatus taken along line C-C inFIG. 4 ; -
FIG. 7 is a front view of the vane pump apparatus taken along line D-D inFIG. 4 , showing a front body of the vane pump apparatus; and -
FIG. 8 is a front view of the vane pump apparatus taken along line E-E inFIG. 4 , showing a side plate of the vane pump apparatus. - Exemplary embodiments will now be described in detail with reference to the accompanying drawings. For convenience of description, a vane pump apparatus designed to compress hydraulic oil though rotation of vanes will be illustrated herein. It should be noted that the drawings are not to precise scale and may be exaggerated in thickness of lines or sizes of components for descriptive convenience and clarity. Furthermore, the terms as used herein are defined by taking functions of the present disclosure into account and can be changed according to the custom or intention of users or operators. Therefore, definition of the terms should be made according to the overall disclosure set forth herein.
-
FIG. 1 is an exploded perspective view of a vane pump apparatus according to an exemplary embodiment,FIG. 2 shows a suction port and a discharge port of a vane pump ofFIG. 1 ,FIG. 3 is an assembled perspective view of the vane pump apparatus ofFIG. 1 ,FIG. 4 is a side-sectional view of the vane pump apparatus taken along line A-A inFIG. 3 ,FIG. 5 is a side-sectional view of the vane pump apparatus taken along line B-B inFIG. 3 ,FIG. 6 is a cross-sectional view of the vane pump apparatus taken along line C-C inFIG. 4 ,FIG. 7 is a front view of the vane pump apparatus taken along line D-D inFIG. 4 , showing a front body of the vane pump apparatus, andFIG. 8 is a front view of the vane pump apparatus taken along line E-E inFIG. 4 , showing a side plate of the vane pump apparatus. - Referring to
FIGS. 1 to 3 , the vane pump apparatus according to one embodiment includes ahousing 70 defining anoutlet channel 74 therein, areservoir tank 1 coupled to thehousing 70 and receivinghydraulic oil 90, and avane pump 10 disposed inside thereservoir tank 1 and discharging thehydraulic oil 90 to the outside through theoutlet channel 74 after compressing thehydraulic oil 90. - In one embodiment, the
housing 70 may be a sidewall or a motor housing, which remains stationary. Here, it should be understood that any member may be used as thehousing 70 so long as the member can be coupled to thereservoir tank 1 and store thehydraulic oil 90. - As shown in
FIG. 4 , thehousing 70 is formed with theoutlet channel 74 connected to adischarge port 84 of thevane pump 10 to receive the compressedhydraulic oil 90 and ahydraulic supply hole 72 connected to theoutlet channel 74 to supply thehydraulic oil 90 to a hydraulic line. - In
FIG. 1 , the surface of thehousing 70 coupled to thevane pump 10 is formed withfastening holes 77, to which fasteningbolts 18 of thevane pump 10 are coupled, and theoutlet channel 74 connected to thedischarge port 84 of thevane pump 10. - Further, the
housing 70 is provided with ashaft connecting hole 76 into which ashaft 80 of thevane pump 10 to be coupled to thehousing 70 is inserted. Theshaft 80 may be operated by a motor secured to a sidewall through theshaft connecting hole 76 or may be directly connected to the motor to be operated by the motor. - Alternatively, the
shaft 80 may be connected to other power sources instead of the motor and may receive rotating power therefrom. - The
reservoir tank 1 is coupled to thehousing 70 to define a space in which thehydraulic oil 90 is stored, and may have a variety of shapes including a cylindrical shape. - The
reservoir tank 1 is provided at one side thereof with aconnection pipe 3, which defines a channel for receivinghydraulic oil 90 from outside. - A
sealing ring 79 is disposed between thehousing 70 and thereservoir tank 1 to prevent oil leakage. Advantageously, a mounting groove is formed on an outer surface of thehousing 70 adjoining a side surface of thereservoir tank 1 such that the sealingring 79 made of a resilient material is mounted on the mounting groove. - Interfaces between the
housing 70 and thereservoir tank 1 may be formed with threads for fastening thehousing 70 and thereservoir tank 1 to each other. Thehousing 70 and thereservoir tank 1 may be coupled to each other in a variety of other ways. - Referring to
FIGS. 1 , 2 and 6, thevane pump 10 includes acam ring 50 having an inner surface of a major arc portion and an inner surface of a minor arc portion, arotor 14 mounted inside thecam ring 50 and having guide grooves radially formed on therotor 14, and a plurality ofvanes 34 inserted into the guide grooves and moving along the inner surfaces of thecam ring 50. - The
vane pump 10 is divided into afront body 60 and arear cover 12 which are coupled to each other by thefastening bolts 18 and define an outer appearance of thevane pump 10. - Since the
vane pump 10 is disposed in thehydraulic oil 90, a separate sealing member is not provided between thefront body 60 and therear cover 12. - As shown in
FIGS. 4 and 5 , thecam ring 50 accommodating therotor 14 therein is mounted on an upper side of thefront body 60, and aside plate 40, aleaf spring 32 and therear cover 12 are sequentially mounted on the upper side of thecam ring 50 and therotor 14. - Referring again to
FIG. 2 , thefront body 60 constituting a front side of thevane pump 10 is formed withsuction ports 82, through which thehydraulic oil 90 is suctioned into thevane pump 10, and thedischarge port 84 which communicates with theoutlet channel 74 to discharge the compressedhydraulic oil 90 to the outside. - A step is formed around the
discharge port 84 and secured to thehousing 70 while adjoining thehousing 70 to allow the compressedhydraulic oil 90 to be supplied through thedischarge port 84 which communicates with theoutlet channel 74. - In the
vane pump 10, since a step or protrusion is not formed around thesuction ports 82 such that thesuction ports 82 are separated from thehousing 70 to thereby form asuction connecting channel 88, thehydraulic oil 90 in thereservoir tank 1 is easily introduced into thesuction ports 82 of thevane pump 10 through thesuction connecting channel 88. - The
shaft 80 is rotated by a power source and is coaxially connected to therotor 14, so that therotor 14 and thevanes 34 are rotated when theshaft 80 is rotated. - As shown in
FIG. 6 , thecam ring 50 is formed in a ring shape and an inner surface thereof has an elliptic cylindrical shape, which has two major arcs and two minor arcs residing on orthogonal axes, respectively. - An inner surface of the
cam ring 50 defining the minor arcs has a smaller diameter than an inn surface of thecam ring 50 defining the major arcs. - The
cam ring 50 is formed withsuction communication holes 52 communicating with therespective suction ports 82 of thefront body 60 and with adischarge communication hole 54 communicating with thedischarge port 84 of thefront body 60. - A
discharge path 86 is disposed between thecam ring 50 and therear cover 12 to define a path through which a fluid flows from apressure compartment 30 towards thedischarge port 84. - As shown in
FIG. 7 , an inner surface of thefront body 60 facing therotor 14 is formed with twofirst discharge grooves discharge port 84 is connected to thefirst discharge groove 65′ located at one side of the inner surface of thefront body 60. - The
front body 60 is also formed on the inner surface thereof with twofirst suction grooves suction ports 82, to guide thehydraulic oil 90 into thevane pump 10. - As shown in
FIG. 8 , one side of theside plate 40 facing therotor 14 is formed withsecond discharge grooves second suction grooves - A
connection hole 44 is provided to thesecond discharge groove 42 of theside plate 40 so that a portion of the discharged fluid flows to thepressure compartment 30 therethrough. - The
leaf spring 32 is disposed between theside plate 40 and therear cover 12 to define a space in thepressure compartment 30 while causing thefront body 60,cam ring 50 andside plate 40 to come into close contact with one another by elastic force of theleaf spring 32. - The
rear cover 12 of thevane pump 10 is integrally formed with a pipe-shapedvalve housing 16, in which arelief valve 20 is integrally formed. - The
relief valve 20 communicates with thepressure compartment 30, to which the fluid compressed by thevanes 34 is supplied, to maintain a preset hydraulic pressure in thepressure compartment 30. - The
relief valve 20 includes avalve sheet 22 which is press-fitted into a rear side of therear cover 12, aball member 24 which prevents the compressed fluid from escaping upon rotation of thevanes 34, aretainer 26 which holds theball member 24, avalve spring 27 which compresses theball member 24, and anadjustment screw 28 which adjusts a compression force of thevalve spring 27. - The
adjustment screw 28 is formed with an outlet opening, so that the fluid in therelief valve 20 is discharged through the outlet opening and mixed with thehydraulic oil 90 inside thereservoir tank 1. - Fastening
bolts 19 are inserted into thefront body 60 through therear cover 12 and prevent theside plate 40 and thecam ring 50 from rotating. - As such, the
cam ring 50,rotor 14 having thevanes 34 mounted thereon,side plate 40,leaf spring 32 andrear cover 12 are sequentially coupled to thefront body 60 to constitute thevane pump 10 according to the embodiment. However, it should be understood that other devices may also be disposed inside thereservoir tank 1 to compress thehydraulic oil 90 and employed as thevane pump 10 according to the embodiment of the present disclosure. - Next, operation of the vane pump apparatus according to the embodiment will be described with reference to the accompanying drawings.
- The
vane pump 10 is coupled to thehousing 70 by coupling thefastening bolts 18 of thevane pump 10 to the fastening holes 77 of thehousing 70. - Here, the
discharge port 84 of thevane pump 10 is secured to thehousing 70 so as to communicate with theoutlet channel 74 of thehousing 70 and thesuction ports 82 of thevane pump 10 are separated from thehousing 70 to thereby facilitate introduction ofhydraulic oil 90 from thereservoir tank 1 into thesuction ports 82. - When rotating force is transmitted to the
shaft 80 through theshaft connecting hole 76, therotor 14 is rotated inside thecam ring 50 by rotation of theshaft 80. - The
hydraulic oil 90 stored inside thereservoir tank 1 flows into thesuction ports 82 of thefront body 60 through thesuction connecting channel 88 and is then supplied to suction regions S of therotor 14 through thesecond suction grooves side plate 40 via thefirst suction grooves front body 60 and the suction communication holes 52 of thecam ring 50. - As the
rotor 14 is rotated in the counterclockwise direction (seeFIG. 6 ), thehydraulic oil 90 flowing into the suction regions S is compressed therein and is then discharged through discharge regions D of therotor 14. - Specifically, the compressed
hydraulic oil 90 in thefirst discharge groove 65′ and thesecond discharge groove 42′ communicating with thedischarge port 84 is directly discharged into thedischarge port 84 through thedischarge communication hole 54. - The
hydraulic oil 90 in thefirst discharge groove 65 and thesecond discharge groove 42, which do not directly communicate with thedischarge port 84, flows into thepressure compartment 30 through theconnection hole 44 and is then supplied to thedischarge port 84 though thedischarge path 86 disposed between thecam ring 50 and therear cover 12. - The
hydraulic oil 90 flowing into theoutlet channel 74 along thedischarge port 84 is conveyed to a hydraulic line through thehydraulic supply hole 72. - In the embodiment with the structure described above, the
vane pump 10 is disposed inside thereservoir tank 1 to eliminate a sealing member for preventing oil leakage from thevane pump 10, thereby enabling a reduction in size and weight of thevane pump 10. - Further, periodic inspection for oil leakage from the
vane pump 10 according to the embodiment is not necessary, thereby improving operability and reducing manufacturing costs thereof through simplification of an overhaul process. - Although some embodiments have been provided to illustrate the present disclosure in conjunction with the drawings, it will be apparent to those skilled in the art that these embodiments are given by way of illustration only and that various modifications, changes, and alternations can be made without departing from the spirit and scope of the present disclosure. The scope of the present disclosure should be limited only by the accompanying claims and equivalents thereof.
Claims (4)
1. A vane pump apparatus comprising:
a housing having an outlet channel;
a reservoir tank coupled to the housing and receiving hydraulic oil; and
a vane pump disposed inside the reservoir tank and discharging the compressed hydraulic oil to the outlet channel,
wherein the vane pump is formed at a front side thereof with a suction port, through which the hydraulic oil is suctioned into the vane pump, and a discharge port communicating with the outlet channel, and
wherein a portion around the suction port is separated from the housing to define a suction connecting channel.
2. The apparatus of claim 1 , wherein the housing is a sidewall body or a motor housing.
3. The apparatus of claim 1 , wherein a sealing ring is disposed between the housing and the reservoir tank to prevent oil leakage.
4. The apparatus of claim 1 , wherein the vane pump is integrally formed with a valve housing on which a relief valve is mounted.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2008-0123967 | 2008-12-08 | ||
KR1020080123967A KR100914241B1 (en) | 2008-12-08 | 2008-12-08 | Vane pump device |
PCT/KR2009/005286 WO2010067946A1 (en) | 2008-12-08 | 2009-09-17 | Vane pump apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110223050A1 true US20110223050A1 (en) | 2011-09-15 |
Family
ID=41210303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/997,888 Abandoned US20110223050A1 (en) | 2008-12-08 | 2009-09-17 | Vane pump apparatus |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110223050A1 (en) |
KR (1) | KR100914241B1 (en) |
CN (1) | CN102016318A (en) |
BR (1) | BRPI0913788A2 (en) |
DE (1) | DE112009002029T5 (en) |
WO (1) | WO2010067946A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110311387A1 (en) * | 2010-06-22 | 2011-12-22 | Gm Global Technoloby Operations, Inc. | High efficiency fixed displacement vane pump |
US20160160809A1 (en) * | 2014-12-05 | 2016-06-09 | Denso Corporation | Vane pump and leakage detecting device using the same |
JP2020023967A (en) * | 2018-07-31 | 2020-02-13 | 株式会社ショーワ | Vane pump device |
WO2021019938A1 (en) * | 2018-07-31 | 2021-02-04 | 株式会社ショーワ | Vane pump device |
US11286927B2 (en) * | 2017-03-23 | 2022-03-29 | Nidec Tosok Corporation | Pump device |
US11560891B2 (en) * | 2017-12-27 | 2023-01-24 | Kyb Corporation | Electric hydraulic actuator |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101321777B1 (en) | 2011-12-12 | 2013-10-28 | 주식회사 신우 | Gear pump |
CN104295491B (en) * | 2014-09-01 | 2017-07-07 | 浙江维新汽车配件有限公司 | A kind of engine of boat and ship rubber impeller formula water pump |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2797647A (en) * | 1954-01-19 | 1957-07-02 | Detroit Harvester Co | Hydraulic pump |
US2827854A (en) * | 1953-03-16 | 1958-03-25 | New York Air Brake Co | Variable speed pump with non-graduating by-pass valve control |
US2984186A (en) * | 1957-07-11 | 1961-05-16 | Thompson Ramo Wooldridge Inc | Multiple pump unit |
US3349714A (en) * | 1965-10-11 | 1967-10-31 | Ford Motor Co | Power steering pump |
US3961758A (en) * | 1974-08-23 | 1976-06-08 | Peabody Barnes, Inc. | Centrifugal pump with integral grinder |
US4408964A (en) * | 1979-11-13 | 1983-10-11 | Kayaba Kogyo Kabushiki-Kaisha | Vane pump |
US4575322A (en) * | 1983-11-30 | 1986-03-11 | Compagnie Industrielle Des Telecommunications Cit-Alcatel | Oil-sealed vane pump |
US5616020A (en) * | 1993-08-09 | 1997-04-01 | Quik Pump, Inc. | Rotary vane pump |
US6012904A (en) * | 1994-05-17 | 2000-01-11 | Walbro Corporation | Vented fuel module reservoir with two-stage pump |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5523358A (en) * | 1978-08-07 | 1980-02-19 | Jidosha Kiki Co Ltd | Rotary liquid compressor |
JPS5724485A (en) * | 1980-07-22 | 1982-02-09 | Kayaba Ind Co Ltd | Vane pump |
KR970027845A (en) * | 1995-11-17 | 1997-06-24 | 황동일 | Hermetic vane pump |
JP3326386B2 (en) * | 1998-04-23 | 2002-09-24 | 小島プレス工業株式会社 | Reservoir tank fixing structure |
JP4484746B2 (en) | 2005-04-01 | 2010-06-16 | 日立オートモティブシステムズ株式会社 | Power steering device |
-
2008
- 2008-12-08 KR KR1020080123967A patent/KR100914241B1/en active IP Right Grant
-
2009
- 2009-09-17 WO PCT/KR2009/005286 patent/WO2010067946A1/en active Application Filing
- 2009-09-17 CN CN2009801166730A patent/CN102016318A/en active Pending
- 2009-09-17 US US12/997,888 patent/US20110223050A1/en not_active Abandoned
- 2009-09-17 BR BRPI0913788A patent/BRPI0913788A2/en not_active IP Right Cessation
- 2009-09-17 DE DE112009002029T patent/DE112009002029T5/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2827854A (en) * | 1953-03-16 | 1958-03-25 | New York Air Brake Co | Variable speed pump with non-graduating by-pass valve control |
US2797647A (en) * | 1954-01-19 | 1957-07-02 | Detroit Harvester Co | Hydraulic pump |
US2984186A (en) * | 1957-07-11 | 1961-05-16 | Thompson Ramo Wooldridge Inc | Multiple pump unit |
US3349714A (en) * | 1965-10-11 | 1967-10-31 | Ford Motor Co | Power steering pump |
US3961758A (en) * | 1974-08-23 | 1976-06-08 | Peabody Barnes, Inc. | Centrifugal pump with integral grinder |
US4408964A (en) * | 1979-11-13 | 1983-10-11 | Kayaba Kogyo Kabushiki-Kaisha | Vane pump |
US4575322A (en) * | 1983-11-30 | 1986-03-11 | Compagnie Industrielle Des Telecommunications Cit-Alcatel | Oil-sealed vane pump |
US5616020A (en) * | 1993-08-09 | 1997-04-01 | Quik Pump, Inc. | Rotary vane pump |
US6012904A (en) * | 1994-05-17 | 2000-01-11 | Walbro Corporation | Vented fuel module reservoir with two-stage pump |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110311387A1 (en) * | 2010-06-22 | 2011-12-22 | Gm Global Technoloby Operations, Inc. | High efficiency fixed displacement vane pump |
US9127674B2 (en) * | 2010-06-22 | 2015-09-08 | Gm Global Technology Operations, Llc | High efficiency fixed displacement vane pump including a compression spring |
US20160160809A1 (en) * | 2014-12-05 | 2016-06-09 | Denso Corporation | Vane pump and leakage detecting device using the same |
US11286927B2 (en) * | 2017-03-23 | 2022-03-29 | Nidec Tosok Corporation | Pump device |
US11560891B2 (en) * | 2017-12-27 | 2023-01-24 | Kyb Corporation | Electric hydraulic actuator |
JP2020023967A (en) * | 2018-07-31 | 2020-02-13 | 株式会社ショーワ | Vane pump device |
WO2021019938A1 (en) * | 2018-07-31 | 2021-02-04 | 株式会社ショーワ | Vane pump device |
CN113950580A (en) * | 2018-07-31 | 2022-01-18 | 日立安斯泰莫株式会社 | Vane pump device |
Also Published As
Publication number | Publication date |
---|---|
BRPI0913788A2 (en) | 2015-10-20 |
CN102016318A (en) | 2011-04-13 |
DE112009002029T5 (en) | 2012-07-26 |
KR100914241B1 (en) | 2009-08-26 |
WO2010067946A1 (en) | 2010-06-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20110223050A1 (en) | Vane pump apparatus | |
CA2514769A1 (en) | System, method, and apparatus for valve stop assembly in a reciprocating pump | |
US20200208629A1 (en) | Pump assembly having two pumps provided in a single housing | |
CN104763610A (en) | Electric compressor | |
US20080075615A1 (en) | Power steering pump | |
US11092149B2 (en) | Dual diaphragm pump having a pressure pulsation pad | |
EP1806475A1 (en) | Rotary compressor | |
US20060127248A1 (en) | Air pump | |
JP2001027186A (en) | Vane pump | |
US6109883A (en) | Coupling construction of compressor housing and method for manufacturing compressor | |
KR20130094655A (en) | Scroll compressor | |
US20100272583A1 (en) | Valve plate of reciprocating compressor | |
US11773848B2 (en) | Cartridge vane pump and pump device including same | |
KR101964588B1 (en) | Vane rotary compressor | |
KR200392423Y1 (en) | Structure of sealing for twin rotary compressor | |
US6857863B1 (en) | Power steering pump | |
CN111207052A (en) | Oil pump assembly | |
KR20080070550A (en) | Application liquid supply device | |
JP2005155609A (en) | Variable capacity rotary compressor | |
KR101584233B1 (en) | diaphragm type pump | |
KR20080029077A (en) | Compressor | |
CN213598623U (en) | Air valve and pneumatic double-diaphragm pump | |
KR20090131447A (en) | With plate where shaft is penetrated the pump where sylinder where is combined is one body | |
CN109268236B (en) | Miniature air pump | |
KR20020023517A (en) | Valve assembly of hermetic compressor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SHIN WOO CO., LTD., KOREA, DEMOCRATIC PEOPLE'S REP Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PARK, HYUN WOO;REEL/FRAME:025486/0337 Effective date: 20101206 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |