• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an arrangement of at least two hydraulic pump devices (7), in particular geared, each driven by an electric motor (9) and connected by a manifold device to a source of low pressure hydraulic fluid and a user. high pressure hydraulic fluid, such as a vehicle assistance system. The arrangement is characterized in that each pump (7) with its drive motor (9) constitutes an autonomous electric pump unit provided with a clean manifold (25), that the two groups are identical and are connected to the source of fluid and the user of the high pressure fluid by a single assembly block (15) mounted on the manifold (25) of the two electric pump units. The invention is usable for motor vehicles.
    公开号:FR3041045A1
    申请号:FR1570041
    申请日:2015-09-16
    公开日:2017-03-17
    发明作者:Philippe Eyraud；Laurent Babonnaud
    申请人:JTEKT HPI SAS；
    IPC主号:
    专利说明:

    The invention relates to an arrangement of at least two hydraulic pump devices in particular geared, each driven by an electric motor and connected by a manifold device to a source of low pressure hydraulic fluid and a user of high pressure fluid, such as 'an assistance system for driving a vehicle (car, bus or truck).
    In arrangements of this type, which are known, the pumps with their hydraulic connections are integrated in a single structural assembly. These arrangements have the disadvantage that their manufacture requires specific tools equipment, which has the consequence that the cost is relatively high. The invention aims to overcome this disadvantage.
    To achieve this purpose, the arrangement according to the invention is characterized in that each pump with its drive motor constitutes an autonomous electric pump unit provided with a clean manifold, that the two groups are identical and are connected to the source of fluid and the user of the high pressure fluid by a single assembly block mounted on the manifolds of the two electric pump units. The invention will be better understood, and other objects, features, details and advantages thereof will appear more clearly in the explanatory description which follows, with reference to the appended schematic drawings given solely by way of example, illustrating a mode of embodiment of the invention and in which: - Figure 1 is a block diagram of a vehicle assistance system, equipped with an arrangement of two hydraulic pump devices according to the invention; Figure 2 is a schematic view of an arrangement according to the invention; Figure 3 is a perspective view of an arrangement according to the invention; Figure 4 is a perspective view, but exploded, of an arrangement according to the invention; - Figures 5 and 6 are two perspective views of the assembly block according to the invention; FIG. 7 is a view in the direction of the arrow VII of FIG. 5; - Figure 8 is a view in the direction of the arrow 8 of Figure 6; - Figure 9 is a sectional view along the line IX-IX of Figure 7; - Figure 10 is a sectional view along the line X-X of Figure 7; - Figure 11 is a sectional view along the line XI-XI of Figure 10; - Figure 12 is a sectional view along the line XII-XII of Figure 8; - Figure 13 is a sectional view along the line XIII-XIII of Figure 12; Figure 14 is a perspective view of a manifold according to the invention; Figures 15 and 18 are two different perspective views of a manifold of an arrangement according to the invention, respectively showing the upper and lower faces of the manifold; - Figure 16 is a sectional view along the line XVI-XVI of Figure 15; FIG. 17 is a sectional view along the line XVII-XVII of FIG. 16.
    FIG. 1 shows, in the form of a synoptic view, by way of non-limiting example, a vehicle assistance assistance system, which is equipped with an arrangement of hydraulic pumps according to the invention.
    In this figure the arrangement is designated by the reference 1. It comprises two groups of hydraulic pumps 3, 5, each formed by a pump 7 gear and an electric drive motor 9 of the pump. The pumps draw low pressure hydraulic fluid, generally oil, from a fluid source 11, in the form of a liquid reservoir, and deliver high pressure fluid to a driving assistance mechanism 13, via 15. The references 17, 18 and 19 denote respectively an electric power supply battery of the electric motors, the CAN bus computer network of the vehicle and an APC device of the vehicle. Each electric pump unit 3, 5 comprises an electronic card housing 21 provided with electrical power connection members 22 and terminals 24 for connecting the electrical control signals of the motor. On each housing 21 is arranged a manifold 25 low pressure fluid suction and discharge of the high pressure fluid.
    As shown in particular in Figures 4, 6 and 14, each manifold has an assembly side portion to the assembly block 15, which comprises a zone 28 for laying the block 15, provided with the connecting orifices 29, 30 respectively. suction of the low-pressure liquid from the source 11 and delivery of the high-pressure liquid to the driving assistance mechanism 13. The parallelepiped-shaped assembly block 15 comprises on its lower face 31 at the two edges adjacent to the manifolds two zones 32, 33 each provided with a low pressure connection port 29 'and a high pressure port 30', which are to be connected to the corresponding ports 29, 30 of the manifolds. In the assembled state of the block, the zones 32, 33 bear each on the laying zone 28 of a manifold 25 and the low pressure and high pressure orifices of the zones of the block and of the manifolds are connected rigidly by elements of The assembly block 15 comprises a low pressure liquid suction orifice 37 and a high pressure discharge orifice 38 which are provided on opposite end faces 40, 41 of the block, perpendicular to the faces adjacent to the manifolds 25. The suction and discharge orifices 37 are in communication via the internal channels with the low-pressure and high-pressure orifices 29 'and 30' of the bearing zones 32, 33. The assembly block 15 is further provided, in each high-pressure liquid path of a non-return valve 44, 44 'and a feedback valve 45 interposed between the high-pressure path and the reservoir 11.
    Referring in particular to Figure 4, will be described in more detail the various components of the arrangement according to the invention.
    The figure shows at 47 the two pinions of the hydraulic gear pump 7, at 49, 50 the upper and lower bearings of the shafts 52, 53 of the pinions. The pinions and bearings are mounted in the cavity 63 of the pump body 58. The references 54, 55 designate seals interposed between the components of the pump, respectively at the cover 51 and the manifold 25. A seal sealing 56 is interposed between the manifold 25 and the housing 21. The shaft 52 of one of the pinions 47 is longer and intended to pass through the manifold, to form the drive shaft of the pump, connected to the Motor shaft 9. The references 60 and 61 respectively designate fastening bolts of the manifold 25 on the housing 21 and the fixing screws of the cover 51 on the manifold 25 through the pump body 58. It can also be seen that the zone 28 connection, with its low pressure connection openings 29 and high pressure 30 is raised relative to the upper plane of the manifold to form the laying area on which bears one of the two zones 32 and 33 of high pressure ports 30 'and low pres 29 'of the assembly block 15.
    Since the manifold 25 is identical for the two pumps, it can be seen that the positions of the orifices 29 'and 30' of the zone 32 are reversed relative to those of the zone 33 of the assembly block 15, so that the zones 28 of the two manifolds can be facing and that the assembly block 15 can be placed on these areas.
    The figure still shows in 68 a support piece of the two pump units, which allows the attachment of the arrangement according to the invention to the vehicle structure.
    The structure of a manifold 25, which is identical to the structure of the other manifold, will be described in more detail below with reference to FIGS. 14 to 17. The references 70 and 71 in FIG. 17 designate internal channels of the manifold, which establish the communication between the inlet and low pressure high pressure orifices 29 of the delivery zone 28 of each manifold and to the suction and discharging the pump into the cavity 63 of the pump body 58.
    Each channel 70, 71 is formed by a series of rectilinear channel sections 72 (FIG. 16) and 73, 74 (FIG. 17). These sections are perpendicular to each other. The sections 73, 74 are open at 75 and 76 for reasons of making sections. The openings are then plugged. The sections 72 establish the communication between the connecting orifices 29, 30 and the internal section 73. The sections 74 open into the cavity 63 of the pump.
    The system of the internal channels of the assembly block 15 will be described below, with reference to FIGS. 4 to 13.
    The body 15 of substantially parallelepiped shape has on its front face 40 the low pressure inlet orifice 37 which communicates by a series of sections 80, 81 and 82, with the connecting port 29 'of the bearing zone 32 and via the series of sections 80, 84 and 85 with the connection port 29 'of the bearing zone 33, as is apparent from FIGS. 9 to 11. The different channel sections are rectilinear and perpendicular to the to each other. The sections 81 and 84 open outwards, for reasons of completion of the sections. After completion of the sections, the openings are plugged. The inlet 38 of high pressure liquid located on the opposite face 41 to the face of the low pressure opening 37 communicates, as can be seen in FIGS. 9, 12 and 13, by a series of channel sections. , 88 and 89 with the connecting port 30 'of the bearing zone 32 intended to be connected to a manifold, and subsequently of the sections 87, 90 and 91 with the orifice 30' of the bearing zone 33, intended to be connected to the orifice 30 of the other manifold. Like the two orifices 29 ', the two orifices 30' of the assembly block 15 are arranged diagonally opposite with respect to the vertical central axis of the assembly block 15. It can be seen that the sections 88 and 90 which open towards the outside to be able to be made are then closed at their openings.
    With regard to the check valves 44 and 44 ', as seen in FIG. 12, the non-return valve 44 is mounted in a channel section 8 8 which communicates via the section 89 with the high-pressure orifice. 30 'of the block and the check valve 44' is disposed in the section 90 which communicates via the section 91 with the other high pressure port 30 '. Each non-return valve comprises a ball 95 which is pushed by a return spring 97 into a position in which it allows the passage of the high pressure liquid from the section 89 or 91 to the orifice 38, but prevents the flow of high liquid. pressure in the opposite direction. Indeed, in the latter situation, the ball is supported on a sealing seat 98, under the effect of its spring, while in the case of normal operation, the ball is pushed against its spring. It is noted that, for the realization of the channel sections 88 and 90, and for the establishment of check valves, they open outwards but are closed by plugs 100.
    Refitting valve 45, as shown in FIG. 9, is mounted in a channel section 102 extending from the upper face 103 of the block 15 to the channel section 80 which opens outwards. by the low pressure port 37. The valve comprises a ball 104 which is pushed by a spring 105 on a sealing seat 106 and, pressed against the seat, closes the passage to the section 80. The opening of the section 102, at level of the upper surface 103 of the block is closed by a plug 107.
    To complete the description, it is also found in 108 fixing bolts of the assembly block 15 on the laying surfaces 28 of the manifolds, which penetrate into the laying portion through the hole 110 between the orifices 29 and 30.
    The operation of the arrangement according to the invention as described and shown will be described below.
    The low pressure liquid of the tank 11 is sucked by the two pumps 7 rotated each by its motor 9, through the assembly block 15. The low pressure liquid enters the block 15 through the inlet opening 37 to out through the openings 29 'each of which is connected to the opening 29 of a manifold. The liquid then passes through the following internal channels of the manifold 25 to reach the suction chamber of the corresponding pump 7. The high pressure liquid discharged by the two pumps out through the opening 30 of each manifold and enters through the two orifices 30 'of the block to exit through the single high pressure port 38, to reach the driving assistance mechanism 13 .
    It emerges from the description of the invention which precedes, that it allows the use of arrangements of identical electric pump units which are then assembled by a single assembly block of a very simple structure, which is rigidly fixed on the manifolds of both groups. Since the arrangement comprises two pumps of identical structure and an assembly block which comprises only a device of internal channels and the check valves and make-up, the cost of manufacture and assembly of the arrangement is considerably lowered compared to known arrangements in which the pumps are integrated so as to form a compact assembly.
    It should be noted that the invention as described and shown has been given by way of example and multiple modifications can be made without departing from the scope of the invention. Thus, the arrangement may comprise a larger number of electric pump units always assembled by a single assembly block whose internal channel device can be easily adapted accordingly. Of course, even in the exemplary arrangement described, the internal channel devices can be made differently without this changing anything to the novel concept of the invention.
    权利要求:
    Claims (5)
    [1" id="c-fr-0001]
    1. Arrangement of at least two hydraulic pump devices, in particular geared, each driven by an electric motor and connected by a manifold device to a source of low pressure hydraulic fluid and a user of high pressure hydraulic fluid, such as a driving assistance system for a vehicle, characterized in that each pump (7) with its drive motor (9) constitutes an autonomous electric pump unit (3, 5) provided with a clean manifold (25) , that the two groups (3, 5) are identical and are connected to the fluid source (11) and the user (13) of the high pressure fluid by a single assembly block (15) mounted on the manifold ( 25) of the two electric pump units.
    [2" id="c-fr-0002]
    2. Arrangement according to claim 1, characterized in that the manifold (25) of each electric pump unit (3, 5) comprises a zone (28) for connection to the assembly block (15), which has suction orifices of low pressure liquid (29) and high pressure liquid discharge (30), and in that the assembly block (15) comprises two connection zones (32, 33) comprising a high pressure connection port (30 '). ) and low pressure (29 ') for connection to the high pressure (30) and low pressure (29) ports of a manifold, a low pressure hydraulic fluid suction port (37) and an orifice (38) of discharge of high pressure hydraulic fluid, which communicate respectively with the low pressure (29 ') and high pressure (30') orifices by a device of channels internal to the block.
    [3" id="c-fr-0003]
    3. Arrangement according to claim 2, characterized in that the high pressure ports (30, 30 ') and low pressure (29, 29') of the manifolds (25) and the assembly block (15) are rigidly connected.
    [4" id="c-fr-0004]
    4. Arrangement according to claim 3, characterized in that the zones (28) of the high pressure and low pressure ports (30, 29) of the manifolds constitute laying zones and each zone (32, 33) of high pressure orifices and low pressure (30 ', 29') of the assembly block (15) constitutes a bearing zone through which the assembly block bears on the installation zone of a manifold (25).
    [5" id="c-fr-0005]
    5. Arrangement according to one of claims 1 to 4, characterized in that the arrangement comprises check valves (44, 44 ') and feedback (45). "Which are integrated in the internal channels of the block d assembly (15).
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3144472A1|2017-03-22|
    FR3041045B1|2020-11-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP3596705B2|1996-04-08|2004-12-02|株式会社荏原製作所|Water supply pump device|
    EP1783371A1|2005-11-08|2007-05-09|Jtekt HPI|Electric pump unit|
    DE102009045574A1|2009-10-12|2011-04-14|Robert Bosch Gmbh|Two internal gear pump|
    WO2012140018A1|2011-04-12|2012-10-18|Grundfos Management A/S|Manifold system|
    DE102014225498A1|2013-12-18|2015-06-18|Robert Bosch Gmbh|Combination of machines|
    DE102017208373A1|2017-05-18|2018-11-22|Continental Teves Ag & Co. Ohg|Pressure delivery arrangement and corresponding method and use|
    DE102019111980A1|2019-05-08|2020-11-12|Rapa Automotive Gmbh & Co. Kg|POWER SUPPLY UNIT FOR ACTIVE SUSPENSION SYSTEM|
    DE102019118384A1|2019-07-08|2021-01-14|Rapa Automotive Gmbh & Co. Kg|MPE AXLE SET WITH A COMMON ECU|
    法律状态:
    2016-09-19| PLFP| Fee payment|Year of fee payment: 2 |
    2017-03-17| PLSC| Search report ready|Effective date: 20170317 |
    2017-09-19| PLFP| Fee payment|Year of fee payment: 3 |
    2018-09-25| PLFP| Fee payment|Year of fee payment: 4 |
    2019-09-24| PLFP| Fee payment|Year of fee payment: 5 |
    2020-09-29| PLFP| Fee payment|Year of fee payment: 6 |
    2021-09-16| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1570041A|FR3041045B1|2015-09-16|2015-09-16|ARRANGEMENT OF AT LEAST TWO HYDRAULIC PUMP DEVICES|FR1570041A| FR3041045B1|2015-09-16|2015-09-16|ARRANGEMENT OF AT LEAST TWO HYDRAULIC PUMP DEVICES|
    EP16189295.5A| EP3144472A1|2015-09-16|2016-09-16|Arrangement of at least two hydraulic pump devices|
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