WO2018208270A2 - A tandem pump having a stair - Google Patents

A tandem pump having a stair Download PDF

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Publication number
WO2018208270A2
WO2018208270A2 PCT/TR2017/050715 TR2017050715W WO2018208270A2 WO 2018208270 A2 WO2018208270 A2 WO 2018208270A2 TR 2017050715 W TR2017050715 W TR 2017050715W WO 2018208270 A2 WO2018208270 A2 WO 2018208270A2
Authority
WO
WIPO (PCT)
Prior art keywords
pump
primary
tandem
gear
drive gear
Prior art date
Application number
PCT/TR2017/050715
Other languages
French (fr)
Other versions
WO2018208270A3 (en
Inventor
Ahmet Sucu
Salim BOZKUŞ
Original Assignee
Hema Endüstri̇ Anoni̇m Şi̇rketi̇
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 Hema Endüstri̇ Anoni̇m Şi̇rketi̇ filed Critical Hema Endüstri̇ Anoni̇m Şi̇rketi̇
Publication of WO2018208270A2 publication Critical patent/WO2018208270A2/en
Publication of WO2018208270A3 publication Critical patent/WO2018208270A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical

Definitions

  • the present invention relates to a tandem pump having a primary pump and a secondary pump provided in the vicinity of the primary pump.
  • Tandem pumps are used for pumping fluid in vehicles, particularly in work machines. Tandem pumps can be generally defined as two serially connected hydraulic pumps. In other words, while the movement received from a drive source is used for pumping fluid in the primary pipe and at the same time, said movement is also transferred to the secondary pump. Thus, by means of the movement received from a single drive source, pluralities of pumps are operated.
  • the gear connected to the drive source in the primary pump is at the same time connected to a gear, provided in the secondary pump, by means of a connection element which is similar to coupler.
  • the present invention relates to a tandem pump, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.
  • An object of the present invention is to provide a tandem pump of which the assembly is facilitated in narrow areas.
  • the present invention is a tandem pump having a primary pump having a primary drive gear and a primary conjugate gear connected to an input shaft and a secondary pump provided in the vicinity of the primary pump and having a secondary drive gear and a secondary conjugate gear. Accordingly, there is at least one connection element connecting the primary conjugate gear and the secondary drive gear in order to transfer the drive, received from the input shaft and the primary drive gear, to the secondary pump.
  • the primary pump and the secondary pump can pump fluid in different directions.
  • At least one intermediate plate is provided between the primary pump and the secondary pump.
  • a stair is provided between the face of the primary pump facing the secondary pump and the lower side of the secondary pump.
  • the intermediate plate comprises a secondary suctioning port connected to the secondary pump by means of a connection channel.
  • the primary pump comprises a primary suctioning port and a primary output port.
  • the primary suctioning port and the primary output port are provided on the mutual two sides of the primary pump.
  • the primary suctioning port and the secondary suctioning port are provided on the same side of the tandem pump.
  • tandem pump (1 ) is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.
  • a primary pump (10) and a secondary pump (20) are connected to each other by means of an intermediate plate (30) provided in between.
  • An intermediate plate (30) provided in between.
  • An input shaft (41 ) passing through the front plate (40) extends into the primary pump (10).
  • a primary drive gear (1 1 ) provided inside the primary pump (10) and there is a primary conjugate gear (12) connected to the primary drive gear (1 1 ).
  • the primary drive gear (1 1 ) is connected to the input shaft (41 ).
  • the primary drive gear (1 1 ) and the input shaft (41 ) are provided in one-piece form.
  • the primary conjugate gear (12) provided inside the primary pump (10) and the secondary drive gear (21 ) provided inside the secondary pump (20) are connected to each other by means of a connection element (60).
  • connection element (60) is a coupler.
  • the primary pump (10) body and the secondary pump (20) body are connected to each other in a manner forming a stair (2).
  • the intermediate plate (30) is positioned at the end of the primary pump (10) and the secondary pump (20) is connected to the intermediate plate (30) in a manner forming a stair (2) between the primary pump (10) and the secondary pump (20).
  • the lower edge of the secondary pump (20) is provided on a plane which is different from the lower edge of the primary pump (10).
  • the assembly of the subject matter tandem pump (1 ) can be realized without hitting a vehicle component (70).
  • the assembly of the tandem pump (1 ) to areas which are narrower than the areas of the prior art is provided.
  • the vehicle component (70) is the protection plate of the tail shaft.
  • the primary pump (10) and the secondary pump (20) can pump fluid to different directions.
  • a primary output port (14) provided on the primary pump (10) and the secondary output port (24) provided on the secondary pump (20) are provided on two different faces of the tandem pump (1 ).
  • a secondary suctioning port (23) of the secondary pump (20) is provided on the intermediate plate (30).
  • the secondary suctioning port (23) provided on the intermediate plate (30) is connected to the secondary pump (20) by means of a connection channel (31 ).
  • the primary suctioning port (13) and the secondary suctioning port (23) can be positioned on the same side or on different sides on the primary pump (10) and on the secondary pump (20).
  • the primary suctioning port (13) and the secondary suctioning port (23) are provided on the same side of the tandem pump (1 ).
  • the hose and nipple connections of the tandem pump (1 ) can be realized in a more comfortable manner.
  • the suctioning and output ports are provided in greater number on the side where a wider movement area exists, and thus, assembly is facilitated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

The present invention is a tandem pump (1) having a primary pump (10) having a primary drive gear (11) and a primary conjugate gear (12) connected to an input shaft (41) and a secondary pump (20) provided in the vicinity of the primary pump (10) and having a secondary drive gear (21) and a secondary conjugate gear (22), characterized by comprising at least one connection element (60) connecting the primary conjugate gear (12) and the secondary drive gear (21) in order to transfer the drive, received from the input shaft (41) and the primary drive gear (11), to the secondary pump (20).

Description

A TANDEM PUMP HAVING A STAIR TECHNICAL FIELD
The present invention relates to a tandem pump having a primary pump and a secondary pump provided in the vicinity of the primary pump. PRIOR ART
Tandem pumps are used for pumping fluid in vehicles, particularly in work machines. Tandem pumps can be generally defined as two serially connected hydraulic pumps. In other words, while the movement received from a drive source is used for pumping fluid in the primary pipe and at the same time, said movement is also transferred to the secondary pump. Thus, by means of the movement received from a single drive source, pluralities of pumps are operated. The gear connected to the drive source in the primary pump is at the same time connected to a gear, provided in the secondary pump, by means of a connection element which is similar to coupler.
Because of said embodiment, two or more pumps are positioned consecutively. This may lead to assembly difficulties due to the narrowness of the usage areas on the vehicle.
As a result, because of all of the abovementioned problems, an improvement is required in the related technical field.
BRIEF DESCRIPTION OF THE INVENTION
The present invention relates to a tandem pump, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.
An object of the present invention is to provide a tandem pump of which the assembly is facilitated in narrow areas. In order to realize all of the abovementioned objects and the objects which are to be deducted from the detailed description below, the present invention is a tandem pump having a primary pump having a primary drive gear and a primary conjugate gear connected to an input shaft and a secondary pump provided in the vicinity of the primary pump and having a secondary drive gear and a secondary conjugate gear. Accordingly, there is at least one connection element connecting the primary conjugate gear and the secondary drive gear in order to transfer the drive, received from the input shaft and the primary drive gear, to the secondary pump. Thus, it is possible that the primary pump and the secondary pump can pump fluid in different directions.
In a preferred embodiment of the invention, at least one intermediate plate is provided between the primary pump and the secondary pump.
In a preferred embodiment of the invention, a stair is provided between the face of the primary pump facing the secondary pump and the lower side of the secondary pump.
In a preferred embodiment of the invention, the intermediate plate comprises a secondary suctioning port connected to the secondary pump by means of a connection channel.
In a preferred embodiment of the invention, the primary pump comprises a primary suctioning port and a primary output port. In a preferred embodiment of the invention, the primary suctioning port and the primary output port are provided on the mutual two sides of the primary pump.
In a preferred embodiment of the invention, the primary suctioning port and the secondary suctioning port are provided on the same side of the tandem pump.
BRIEF DESCRIPTION OF THE FIGURES
In Figure 1 , a representative isometric view of the subject matter tandem pump is given. In Figure 2, another representative isometric view of the subject matter tandem pump is given.
In Figure 3, a representative cross sectional view of the gears provided in the subject matter tandem pump is given.
In Figure 4, a representative side view of the subject matter tandem pump is given. In Figure 5, a representative isometric view of the intermediate plate of the subject matter tandem pump is given.
In Figure 6, a representative cross sectional view of the intermediate plate of the subject matter tandem pump is given.
In Figure 7, the isometric view of a representative usage of the subject matter tandem pump is given. DETAILED DESCRIPTION OF THE INVENTION
In this detailed description, the subject matter tandem pump (1 ) is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.
As can be seen in Figure 1 , a primary pump (10) and a secondary pump (20) are connected to each other by means of an intermediate plate (30) provided in between. There is a front plate (40) which partially covers one side of the primary pump (10). An input shaft (41 ) passing through the front plate (40) extends into the primary pump (10). There is a rear plate (50) provided on the other side of the secondary pump (20) whose one side is closed by the intermediate plate (30).
With reference to Figure 2, there is a primary drive gear (1 1 ) provided inside the primary pump (10) and there is a primary conjugate gear (12) connected to the primary drive gear (1 1 ). The primary drive gear (1 1 ) is connected to the input shaft (41 ). In a possible embodiment of the present invention, the primary drive gear (1 1 ) and the input shaft (41 ) are provided in one-piece form. There is a secondary drive gear (21 ) and a secondary conjugate gear (22) provided inside the secondary pump (20). The primary conjugate gear (12) provided inside the primary pump (10) and the secondary drive gear (21 ) provided inside the secondary pump (20) are connected to each other by means of a connection element (60). Thus, movement is transferred to the primary conjugate gear (12) by means of the input shaft (41 ) and thus, by means of the primary drive gear (1 1 ) and afterwards, movement is transferred from the primary conjugate gear (12) to the secondary drive gear (21 ) and from there to the secondary conjugate gear (22). Thus, the primary drive gear (1 1 ) and the secondary drive gear (21 ) rotate in opposite directions. At the same time, the primary conjugate gear (12) and the secondary conjugate gear (22) rotate in opposite directions. Thus, the primary pump (10) and the secondary pump (20) try to pump fluid in opposite directions. In a possible embodiment of the invention, the connection element (60) is a coupler.
In order to provide this embodiment of the primary pump (10) and the secondary pump (20), the primary pump (10) body and the secondary pump (20) body are connected to each other in a manner forming a stair (2). In more details, as can be seen in Figure 3, the intermediate plate (30) is positioned at the end of the primary pump (10) and the secondary pump (20) is connected to the intermediate plate (30) in a manner forming a stair (2) between the primary pump (10) and the secondary pump (20). In other words, the lower edge of the secondary pump (20) is provided on a plane which is different from the lower edge of the primary pump (10). By means of this, a stair (2) has been obtained between the secondary pump (20) and the side of the intermediate plate (30) facing the secondary pump (20). Thus, as can be seen in Figure 4, the assembly of the subject matter tandem pump (1 ) can be realized without hitting a vehicle component (70). In other words, the assembly of the tandem pump (1 ) to areas which are narrower than the areas of the prior art is provided. With reference to Figure 7, in a possible application of the invention, the vehicle component (70) is the protection plate of the tail shaft.
On the other hand, thanks to said embodiment, the primary pump (10) and the secondary pump (20) can pump fluid to different directions. In other words, a primary output port (14) provided on the primary pump (10) and the secondary output port (24) provided on the secondary pump (20) are provided on two different faces of the tandem pump (1 ).
In a possible embodiment of the present invention, a secondary suctioning port (23) of the secondary pump (20) is provided on the intermediate plate (30). The secondary suctioning port (23) provided on the intermediate plate (30) is connected to the secondary pump (20) by means of a connection channel (31 ). Thus, depending on the direction where the secondary suctioning port (23) is provided on the intermediate plate (30), the primary suctioning port (13) and the secondary suctioning port (23) can be positioned on the same side or on different sides on the primary pump (10) and on the secondary pump (20). In a possible embodiment of the invention, the primary suctioning port (13) and the secondary suctioning port (23) are provided on the same side of the tandem pump (1 ). Thanks to said embodiment, the hose and nipple connections of the tandem pump (1 ) can be realized in a more comfortable manner. In other words, depending on the location where the tandem pump (1 ) is positioned, the suctioning and output ports are provided in greater number on the side where a wider movement area exists, and thus, assembly is facilitated. The protection scope of the present invention is set forth in the annexed Claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention.
REFERENCE NUMBERS
1 Tandem pump
2 Stair
10 Primary pump
1 1 Primary drive gear
12 Primary conjugate gear
13 Primary suctioning port
14 Primary output port
20 Secondary pump
21 Secondary drive gear
22 Secondary conjugate gear
23 Secondary suctioning port 24 Secondary output port
30 Intermediate plate
31 Transfer channel 40 Front plate
41 Input shaft
50 Rear plate
60 Connection element 70 Vehicle component

Claims

1. A tandem pump (1 ) having a primary pump (10) having a primary drive gear (1 1 ) and a primary conjugate gear (12) connected to an input shaft (41 ) and a secondary pump (20) provided in the vicinity of the primary pump (10) and having a secondary drive gear (21 ) and a secondary conjugate gear (22), characterized by comprising at least one connection element (60) connecting the primary conjugate gear (12) and the secondary drive gear (21 ) in order to transfer the drive, received from the input shaft (41 ) and the primary drive gear (1 1 ), to the secondary pump (20).
2. A tandem pump (1 ) according to claim 1 , wherein at least one intermediate plate (30) is provided between the primary pump (10) and the secondary pump (20).
3. A tandem pump (1 ) according to claim 1 or 2, wherein a stair (2) is provided between the face of the primary pump (10) facing the secondary pump (20) and the lower side of the secondary pump (20).
4. A tandem pump (1 ) according to claim 2, wherein the intermediate plate (30) comprises a secondary suctioning port (23) connected to the secondary pump (20) by means of a connection channel (31 ).
5. A tandem pump (1 ) according to any one of the preceding claims, wherein the primary pump (10) comprises a primary suctioning port (13) and a primary output port (14).
6. A tandem pump (1 ) according to claim 5, wherein the primary suctioning port (13) and the primary output port (14) are provided on the mutual two sides of the primary pump (10).
7. A tandem pump (1 ) according to claim 5 or 6, wherein the primary suctioning port (13) and the secondary suctioning port (24) are provided on the same side of the tandem pump (1 ).
PCT/TR2017/050715 2016-12-29 2017-12-28 A tandem pump having a stair WO2018208270A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201620101 2016-12-29
TR2016/20101 2016-12-29

Publications (2)

Publication Number Publication Date
WO2018208270A2 true WO2018208270A2 (en) 2018-11-15
WO2018208270A3 WO2018208270A3 (en) 2019-01-17

Family

ID=64102747

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2017/050715 WO2018208270A2 (en) 2016-12-29 2017-12-28 A tandem pump having a stair

Country Status (1)

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WO (1) WO2018208270A2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259045A (en) * 1978-11-24 1981-03-31 Kayabakogyokabushikikaisha Gear pump or motor units with sleeve coupling for shafts
JP2602166Y2 (en) * 1992-03-31 1999-12-27 株式会社島津製作所 Tandem gear pump
GB0408600D0 (en) * 2004-04-19 2004-05-19 Goodrich Control Sys Ltd Pump assembly

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Publication number Publication date
WO2018208270A3 (en) 2019-01-17

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