DE102022124169A1 - Oil supply device for a motor vehicle component of a motor vehicle, motor vehicle component for a motor vehicle and motor vehicle - Google Patents

Abstract

The invention relates to an oil supply device (20) for a motor vehicle component (10) of a motor vehicle (K), with an oil pump (22), with a main oil channel (30), by means of which oil (12) can be guided to at least one oil transfer space (60) and with an oil supply channel (40), which is coupled in an oil-conducting manner to supply oil to the main oil channel (30), on the one hand at least indirectly with the oil pump (22) and on the other hand at least indirectly with the main oil channel (30). At least one plate element (70) is arranged on the main oil channel (30), which has at least one through opening (72) with a through opening cross section (74) which is smaller than a main oil channel opening cross section (34) of the main oil channel (30) and the through opening (72) is designed to reduce the pressure of an oil stream (14) flowing from the main oil channel (30) through the through opening (72) and into the oil transfer space (60). Further aspects of the invention relate to a motor vehicle component (10) of a motor vehicle (K) and a motor vehicle (K).

Description

The invention relates to an oil supply device for a motor vehicle component of a motor vehicle, with an oil pump, with a main oil channel, by means of which oil can be guided to at least one oil transfer space, and with an oil supply channel, which is used to supply oil to the main oil channel, on the one hand at least indirectly with the oil pump and on the other hand at least indirectly with the Main oil channel is coupled in an oil-conducting manner.
Further aspects of the invention relate to a motor vehicle component for a motor vehicle and a motor vehicle.

Such oil supply devices are used to cool and lubricate motor vehicle components and enable oil to be distributed to relevant areas as needed.

From the EP 2 541 004 A1 For example, a piston cooling device is known in which the cooling efficiency of a piston is improved by oil injected from an oil nozzle and supplied to a cooling channel provided in the piston. The amount of cooling oil is reduced when an internal combustion engine is operated at maximum output power. The piston cooling device is provided with a piston for an internal combustion engine in which a circulating passage and a cooling passage having an inlet passage and an outlet passage are provided. An oil nozzle for injecting oil from an injection port into the intake passage is also provided.

The object of the present invention is to provide a low-cost, needs-based and easy-to-produce oil supply device for a motor vehicle component, a motor vehicle component with an oil supply device, and a motor vehicle.

This object is achieved by an oil supply device with the features of patent claim 1, by a motor vehicle component with the features of patent claim 9 and by a motor vehicle with the features of patent claim 10. Advantageous embodiments with useful developments of the invention are specified in the subclaims.

A first aspect of the invention relates to an oil supply device for a motor vehicle component of a motor vehicle, with an oil pump, with a main oil channel, by means of which oil can be guided to at least one oil transfer space, and with an oil supply channel, which is used to supply oil to the main oil channel, on the one hand at least indirectly with the oil pump and on the other hand at least is indirectly coupled to the main oil channel in an oil-conducting manner.

According to the invention it is provided that at least one plate element is arranged on the main oil channel, which has at least one through opening with a through opening cross section that is smaller than a main oil channel opening cross section of the main oil channel and the through opening for reducing the pressure of an oil flowing from the main oil channel through the through opening and into the oil transfer space Oil flow is formed. The advantage here, for example, is that the main oil channel can be designed for a larger oil volume flow and the oil volume flow can be limited in a particularly simple manner to the oil flow actually required in the oil transfer space using the plate element. The plate element can be arranged in the oil transfer space.

The invention is based on the knowledge that adjusting the oil flow using a valve can be complex on the one hand and prone to failure on the other, especially in comparison to the plate element. Because the passage opening cross section of the passage opening is smaller than the main oil channel opening cross section of the main oil channel, the plate element forms a narrowing, which enables low-effort, needs-based and easy-to-produce adjustment of the oil flow. The plate element can, for example, be designed as a stamped sheet metal part and can therefore be manufactured particularly easily. The plate element generally allows the oil supply device to be easily adapted to different oil supply conditions. For example, if less oil, which can be transported using the oil flow, is required, the through-opening cross section of the through-opening of the plate element can be made correspondingly smaller.

In an advantageous development of the invention, the at least one plate element is fixed to a wall element using at least one fastening element arrangement. This is advantageous because the plate element can be designed to be particularly simple in this case, with no thread having to be provided on the plate element, for example, in order to fix the plate element to the wall element. The fastening element arrangement can, for example, comprise at least one fastening element. The fastening element can be designed for reversibly releasable, in other words for non-destructively releasable fastening of the plate element. The fastening element can preferably be designed as a screw in a particularly low-cost design. The fastening arrangement can be in advantageously also include several fastening elements, for example several screws. Particularly preferably, the plate element can be fixed to the wall element using at least two fastening elements, for example two screws. As a result, even at high oil pressure against the plate element, strong bending stress, which can occur when fastening with only one fastening element, can be avoided.

In a further advantageous development of the invention, the wall element is assigned to the main oil channel and delimits the main oil channel opening cross section at least on the circumference. This advantageously enables a particularly compact arrangement of the plate element, with the wall element having a dual function, in which the wall element not only delimits the main oil channel, but also serves as a fastening point for the fastening element arrangement.

In a further advantageous development of the invention, the at least one plate element is fixed to the wall element exclusively by means of the fastening element arrangement. This means there is a particularly high degree of freedom in the design and use of the oil transfer space. For example, it is not necessary to use the oil transfer space wall area delimiting the oil transfer area to clamp the plate element.

In a further advantageous development of the invention, the at least one plate element has a thickness of a maximum of 4 mm, preferably a maximum of 2.5 mm, measured in the longitudinal direction of the main oil channel. This is an advantage because the plate element is particularly compact and therefore takes up particularly little space. A thickness value of 4.0 mm, 3.9 mm, 3.8 mm, 3.7 mm has proven to be particularly stable and at the same time compact, especially when using the plate element in a motor vehicle, for example a car or a motorcycle. 3.6mm, 3.5mm, 3.4mm, 3.3mm, 3.2mm, 3.1mm, 3.0mm, 2.9mm, 2.8mm, 2.7mm, 2.6mm or 2.5mm shown. In most applications of the plate element in a motor vehicle, for example a car or a motorcycle, the thickness has a value of 2.4 mm, 2.3 mm, 2.2 mm, 2.1 mm, 2.0 mm, 1 .9mm, 1.8mm, 1.7mm, 1.6mm, 1.5mm, 1.4mm, 1.3mm, 1.2mm, 1.1mm, 1.0mm, 0 .9 mm, 0.8 mm, 0.7 mm, 0.6 mm, 0.5 mm are shown to be sufficient, with such low thickness values making a particularly space-saving arrangement possible.

In a further advantageous development of the invention, the at least one plate element is made of an aluminum alloy or plastic. Weight can be saved by producing the plate element from an aluminum alloy or plastic. Of course, at high oil temperatures and/or high oil pressures, it can make sense to make the plate element from steel.

In a further advantageous development of the invention, the oil transfer space has an oil transfer space inner circumference in a radial extension direction oriented perpendicular to the main oil channel, which is larger than a plate element outer circumference of the plate element. This advantageously facilitates the assembly of the plate element. In addition, the plate element can have a maximum plate element external diameter in the radial extension direction oriented perpendicular to the main oil channel, which is smaller than a maximum oil transfer chamber internal diameter of the oil transfer chamber.

In a further advantageous development of the invention, a first spatial region of the oil transfer chamber is assigned to a first component of the oil supply device and a second spatial region of the oil transfer chamber is assigned to a second component of the oil supply device. This makes the assembly of the plate element easier, since this results in an at least two-part design of the oil transfer space. The main oil channel can also be at least partially, preferably completely, assigned to the first component. The oil transfer space can preferably be formed exclusively by the first and second spatial regions, in particular exclusively by the two components.

A second aspect of the invention relates to a motor vehicle component for a motor vehicle with at least one oil supply device according to the first aspect of the invention. With this motor vehicle component, a needs-based oil supply can be provided with little effort. The motor vehicle component can be designed, for example, as a stator for an electric motor, in particular for driving the motor vehicle, as a transmission component or as a radiator component.

A third aspect of the invention relates to a motor vehicle with at least one oil supply device according to the first aspect of the invention and/or with at least one motor vehicle component according to the second aspect of the invention. In this motor vehicle, oil can be supplied as needed with little effort.

The preferred embodiments presented in relation to one of the aspects and their Advantages apply accordingly to the other aspects of the invention and vice versa.

The features and combinations of features mentioned above in the description as well as the features and combinations of features mentioned below in the description of the figures and/or shown in the figures alone can be used not only in the combination specified in each case, but also in other combinations or on their own, without the scope of to abandon invention.

Further advantages, features and details of the invention emerge from the claims, the following description of preferred embodiments and the drawings.

• 1 eine schematische Schnittdarstellung eines Teilbereichs einer in einem abstrahiert dargestellten Kraftfahrzeug angeordneten Kraftfahrzeugkomponente mit einer Ölversorgungsvorrichtung in Perspektivansicht;
• 2 eine Perspektivansicht eines an einem Hauptölkanal der Ölversorgungsvorrichtung angeordneten Plattenelements, welches eine Durchgangsöffnung mit einem Durchgangsöffnungsquerschnitt aufweist, der kleiner ist als ein Hauptölkanalöffnungsquerschnitt des Hauptölkanals, wobei die Durchgangsöffnung zur Druckminderung eines aus dem Hauptölkanal durch die Durchgangsöffnung und in den Ölübergaberaum strömenden Ölstroms ausgebildet ist;
• 3 eine perspektivische Schnittdarstellung des Plattenelements in dessen Anordnung am Hauptölkanal gemäß einer durch eine Längserstreckungsrichtung und eine Quererstreckungsrichtung des Hauptölkanals aufgespannten Schnittebene; und
• 4 eine schematische Perspektivansicht des vereinzelten Plattenelements.

The invention is explained again below using a specific exemplary embodiment. This shows:

• 1 a schematic sectional view of a portion of a motor vehicle component arranged in an abstracted motor vehicle with an oil supply device in a perspective view;
• 2 a perspective view of a plate element arranged on a main oil channel of the oil supply device, which has a through opening with a through opening cross section that is smaller than a main oil channel opening cross section of the main oil channel, the through opening being designed to reduce the pressure of an oil flow flowing out of the main oil channel through the through opening and into the oil transfer space;
• 3 a perspective sectional view of the plate element in its arrangement on the main oil channel according to a sectional plane spanned by a longitudinal direction of extension and a transverse direction of extension of the main oil channel; and
• 4 a schematic perspective view of the isolated plate element.

1 shows an abstract representation of a motor vehicle K and a schematic sectional representation of a portion of a motor vehicle component 10. The motor vehicle component 10 comprises an oil supply device 20.

The oil supply device 20 comprises an oil pump 22 shown in abstract form, a main oil channel 30, by means of which oil 12 can be guided to an oil transfer space 60, and an oil supply channel 40. The oil supply channel 40 is used to supply oil to the main oil channel 30 on the one hand at least indirectly with the oil pump 22 and on the other hand at least indirectly coupled to the main oil channel 30 in an oil-conducting manner.

A plate element 70 is arranged on the main oil channel 30 and has at least one through opening 72 with a through opening cross section 74 which is smaller than one in 1 indicated main oil channel opening cross section 34 of the main oil channel 30. The through opening 72 is designed to reduce the pressure of an oil stream 14 flowing out of the main oil channel 30 through the through opening 72 and into the oil transfer space 60. The through-opening cross section 74 is shown in an enlarged view of the plate element 70 in its installed position 2 shown.

The plate element 70 is fixed to a wall element 24 using a fastening element arrangement 80, as is particularly clear from 2 and 3 can be recognized. The wall element 24 is assigned to the main oil channel 30 and delimits the main oil channel opening cross section 34 on the circumference. In the present case, the plate element 70 is fixed to the wall element 24 exclusively by means of a screw assigned to the fastening element arrangement 80.

In the present case, the plate element 70, which is exemplarily made of plastic or aluminum, has a thickness d of, for example, 2.5 mm, measured in the longitudinal direction x of the main oil channel 30.

The oil transfer space 60 has a radial extension direction y oriented perpendicular to the main oil channel 30 2 shown oil transfer space inner circumference 68, which is larger than a geometrically similar to the oil transfer space inner circumference 68 designed plate element outer circumference 76 of the plate element 70.

A first spatial region 62 of the oil transfer chamber 60 is assigned to a first component 90 of the oil supply device 20 and a second spatial region 64 of the oil transfer chamber 60 is assigned to a second component 100 of the oil supply device 20.

The oil transfer space inner circumference 68 can be assigned to the wall element 24, as in 2 is shown. Due to the geometrically similar design of the oil transfer space inner circumference 68 and the plate element outer circumference 76, the oil transfer space inner circumference 68 can surround the plate element outer circumference 76 on the circumference during assembly of the plate element 70 and prevent any undesirable rotation of the plate element 70 relative to the wall element 24 during Prevent fixing the plate element 70 to the wall element 24 by means of the screw. Both the oil transfer space inner circumference 68 and the plate element outer circumference 76 are preferably designed to be rotationally asymmetrical, i.e. not rotationally symmetrical, in other words, which creates a particularly simple and effective anti-twist protection during assembly of the plate element 70. A simple production of both the oil transfer space inner circumference 68 and the plate element outer circumference 76 as well as effective anti-twist protection during assembly is possible in particular in that both the oil transfer space inner circumference 68 and the plate element outer circumference 76 are each formed in areas from two hollow cylinder segments with different inner radii, the two hollow cylinder segments being each other overlap and merge into one another in such a way that the oil transfer space inner circumference 68 or the plate element outer circumference 76 form a substantially keyhole-shaped inner surface 69 defined by the oil transfer space inner circumference 68 or outer surface 77 defined by the plate element outer circumference 76, as can be seen by looking together 2 and 4 can be seen, the latter showing the isolated and therefore dismantled plate element 70.

By arranging, for example, a further plate element at an end of the main oil channel 30 opposite the plate element 70, different pressure levels of the oil 12 can be set with little effort in accordance with the size of the passage opening cross section 74, without having to resort to expensive valves. In addition, the plate element 70 is particularly easy to assemble, is compact and robust.

Reference symbol list

10

Automotive component

12

oil

14

Oil flow

20

Oil supply device

22

Oil pump

24

Wall element

30

main oil channel

34

Main oil channel opening cross section

40

Oil supply channel

60

Oil transfer room

62

first room area

64

second room area

68

Oil transfer chamber inner circumference

69

Inner surface

70

Plate element

72

Passage opening

74

Passage opening cross section

76

Plate element outer circumference

77

external surface

80

Fastener arrangement

90

first component

100

second component

d

thickness

K

motor vehicle

x

Longitudinal extension direction

y

Radial extension direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2541004 A1 [0003]

Claims (10)

Oil supply device (20) for a motor vehicle component (10) of a motor vehicle (K), with an oil pump (22), with a main oil channel (30), by means of which oil (12) can be guided to at least one oil transfer space (60) and with an oil supply channel ( 40), which is coupled in an oil-conducting manner to supply oil to the main oil channel (30), on the one hand at least indirectly with the oil pump (22) and on the other hand at least indirectly with the main oil channel (30), characterized in that at least one plate element (70) on the main oil channel (30) is arranged, which has at least one through opening (72) with a through opening cross section (74) which is smaller than a main oil channel opening cross section (34) of the main oil channel (30) and the through opening (72) for reducing the pressure of one from the main oil channel (30) through the through opening (72) and oil flow (14) flowing into the oil transfer space (60). Oil supply device (20). Claim 1 , characterized in that the at least one plate element (70) is fixed to a wall element (24) using at least one fastening element arrangement (80). Oil supply device (20). Claim 2 , characterized in that the wall element (24) is assigned to the main oil channel (30) and delimits the main oil channel opening cross section (34) at least on the circumference. Oil supply device (20) according to one of the Claims 2 or 3 , characterized in that the at least one plate element (70) is fixed to the wall element (24) exclusively by means of the fastening element arrangement (80). Oil supply device (20) according to one of the preceding claims, characterized in that the at least one plate element (70) has a thickness (d) of a maximum of 4 mm, preferably a maximum of 2.5 mm, measured in the longitudinal direction (x) of the main oil channel (30). Oil supply device (20) according to one of the preceding claims, characterized in that the at least one plate element (70) is made of an aluminum alloy or plastic. Oil supply device (20) according to one of the preceding claims, characterized in that the oil transfer space (60) has an oil transfer space inner circumference (62) in a radial extension direction (y) oriented perpendicular to the main oil channel (30), which is larger than a plate element outer circumference (76) of the plate element (70). Oil supply device (20) according to one of the preceding claims, characterized in that a first spatial area (62) of the oil transfer space (60) is assigned to a first component (90) of the oil supply device (20) and a second spatial area (64) of the oil transfer space (60) a second component (100) of the oil supply device (20). Motor vehicle component (10) for a motor vehicle (K) with at least one oil supply device (20) according to one of Claims 1 until 8th . Motor vehicle (K) with at least one oil supply device (20) according to one of Claims 1 until 8th and/or with at least one motor vehicle component (10). Claim 9 .

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