DE102015112447A1 - Pressure medium conveying device and sealing device for sealing a pressure medium conveying device - Google Patents

Abstract

The invention relates to a pressure medium conveying device (10), in particular for a motor vehicle, having a housing (12) on which a suction port (14) for supplying pressure medium into the pressure medium conveying device (10) and at least one pressure port (16a, 16b) for dispensing Pressure means from the pressure medium conveying device (10) are arranged, which can be sealed for mounting and / or transport of the pressure medium conveying device (10) prior to assembly in a hydraulic system by a sealing device (18), wherein the suction port (14) and the at least one pressure port (16a , 16b) by an integrally formed sealing means (18) are sealable. The invention further relates to a sealing device (18) for sealing the pressure-medium conveying device (10).

Description

The invention relates to a pressure medium conveying device. The invention further relates to a sealing device for sealing the pressure medium conveying device.

State of the art

Pressure medium conveying devices for the provision of a pressure medium flow of a consumer in a motor vehicle are known. They are formed as displacement pumps, such as vane pumps, and have a housing in which a rotor rotates in a cam ring on. On the housing, a suction port for pressure medium for supplying pressure medium from a pressure medium container in a pump pressure chamber and a pressure port for discharging pressure medium to a consumer are arranged.

The DE 10 2006 009 699 A1 discloses a pressure medium conveying device, in particular for a motor vehicle, having a housing, on which a suction port for supplying pressure medium into the pressure medium conveying device and a pressure port for discharging pressure medium from the pressure medium conveying device are arranged, wherein the pressure port and / or the suction port are each closed by a sealing means are.

Pressure medium delivery devices may further comprise more than just a suction port and a pressure port. Moreover, pressure medium conveyors may have a metallic sealing surface to a hydraulic system. It is therefore desirable that the pressure medium conveying device can be protected against damage to the metallic sealing surface during transport before mounting in the hydraulic system and can be sealed in an efficient manner against leakage of oil.

The invention is therefore based on the object to provide a pressure medium conveying device which can be effectively sealed against leakage of oil and their metallic sealing surface can be protected against damage, as well as to provide a sealing device for sealing the pressure medium conveying device, which seals the pressure medium conveying device in an efficient manner and the metallic sealing surface of the pressure medium conveyor protects against damage.

The object is achieved with a pressure medium conveying device, in particular for a motor vehicle, with the features of patent claim 1. Furthermore, the object is achieved with a sealing device for sealing a pressure medium conveying device, in particular for a motor vehicle, with the features of patent claim 5.

Disclosure of the invention

The present invention provides a pressure medium conveying device, in particular for a motor vehicle, wherein the suction port and the at least one pressure port can be sealed by an integrally formed sealing device.

The present invention further provides a sealing device for sealing a pressure medium conveying device, in particular for a motor vehicle, wherein the sealing device is designed in one piece for sealing the suction port and the at least one pressure port.

One idea of the present invention is to provide a pressure medium conveying device, in particular for a motor vehicle, which can be effectively sealed against leakage of oil and whose metallic sealing surface can be protected against damage. Furthermore, it is an idea of the present invention to provide a sealing device for sealing the pressure medium conveying device, in particular for a motor vehicle, which seals the pressure medium conveying device in an efficient manner and protects the metallic sealing surface of the pressure medium conveying device against damage.

Advantageous embodiments and further developments emerge from the dependent claims and from the description with reference to the figures.

According to a preferred embodiment, it is provided that the pressure medium conveying device has a surface-formed portion on which the suction port and the at least one pressure port are arranged, wherein the area formed area is formed as a metallic sealing surface, which connectable to a connecting surface of the hydraulic system and to the connecting surface the hydraulic system is sealing applied. By providing the areal section as a metallic sealing surface can advantageously be dispensed with a provision of a separate seal for sealing the pressure medium conveying device relative to the hydraulic system.

According to a further preferred refinement, it is provided that the pressure medium conveying device has a first pressure connection and a second pressure connection for dispensing pressure medium from the pressure medium conveying device, and wherein the pressure medium conveying device has a return connection or injector connection for the supply of pressure medium into the pressure medium conveying device, wherein the first pressure connection, the second pressure port and the return port through the integrally formed sealing means are sealable. Thus, for example, a pressure medium conveying device, which has a plurality of terminals, are sealed in an efficient manner by the single, integrally formed sealing device.

According to a further preferred embodiment, it is provided that the metallic sealing surface of the pressure medium conveying device can be covered at least in sections by the integrally formed sealing device. Due to the coverability of the metallic sealing surface by the integrally formed sealing device, the metallic sealing surface can be protected in an advantageous manner during transport and / or assembly of the pressure medium conveying device against damage.

According to a further preferred embodiment, it is provided that the sealing device has a first, planar formed portion which is adapted to cover a formed as a metallic sealing surface trained portion of the pressure medium conveying device, and wherein the sealing means comprises a second portion having a plurality of projections has, which are sealingly inserted into the suction port and the at least one pressure port of the pressure medium conveying device. Thus, both the metallic sealing surface of the pressure medium conveying device can be protected from damage and, moreover, it is advantageously ensured that no oil escapes from the pressure medium conveying device during storage and / or transport.

According to a further preferred development, it is provided that the plurality of projections have a shape adapted to a shape of the suction connection and of the at least one pressure connection of the pressure-medium conveying device, the projections each having a wall section which is substantially perpendicular to the first, plan-shaped section of the sealing device have a bottom portion formed substantially parallel to the first, plan trained portion of the sealing device. Thus, the sealing device is preferably adaptable to any shape of the terminals of the pressure medium conveying device.

According to a further preferred development, it is provided that the sealing device is designed to seal a first pressure connection and a second pressure connection of the pressure medium conveying device for dispensing pressure medium from the pressure medium conveying device and a return connection of the pressure medium conveying device for dispensing pressure medium from the pressure medium conveying device. Thus, for example, a pressure medium conveying device, which has a plurality of terminals, are sealed in an efficient manner by the single, integrally formed sealing device.

According to a further preferred embodiment, it is provided that the plurality of projections are cylindrical, and wherein the sealing device is formed of rubber. Due to the cylindrical design of the plurality of projections in connection with the formation of the sealing device made of rubber, a simple and reliable availability and sealing effect of the sealing device relative to the pressure medium conveying device can be achieved.

According to a further preferred development, it is provided that the sealing device has at least one lug formed on the first section of the sealing device for dismantling the sealing device from the pressure medium conveying device. By providing the at least one tab, the sealing device can thus be easily removed from the pressure medium conveying device in an advantageous manner.

The described embodiments and developments can be combined with each other as desired.

Further possible refinements, developments and implementations of the invention also include combinations, not explicitly mentioned, of features of the invention described above or below with regard to the exemplary embodiments.

Brief description of the drawings

The accompanying drawings are intended to provide further understanding of the embodiments of the invention. They illustrate embodiments and, together with the description, serve to explain principles and concepts of the invention.

Other embodiments and many of the stated advantages will become apparent with reference to the drawings. The illustrated elements of the drawings are not necessarily shown to scale to each other.

Show it:

1 a schematic representation of a sealing device according to a preferred embodiment of the invention;

2 a schematic representation of a pressure medium conveying device and in 1 illustrated sealing device according to the preferred embodiment of the invention; and

3 a schematic representation of in 1 shown sealing device in a state inserted into the pressure medium conveying device and a hydraulic system according to the preferred embodiment of the invention.

In the figures of the drawings, like reference characters designate like or functionally identical elements, components or components unless otherwise indicated.

1 shows a schematic representation of a sealing device 18 according to a preferred embodiment of the invention.

The sealing device 18 for sealing the (in 1 not shown) pressure medium conveying device is preferably used in pressure medium conveyors for motor vehicles application. The sealing device 18 for sealing the (in 1 not shown) pressure medium conveying device is preferably formed in one piece.

The sealing device 18 preferably has a first, plan trained portion 18a on. The first, plan trained section 18a is preferably designed to be designed as a metallic sealing surface (in 1 not shown) to cover flat section of the pressure medium conveyor.

The sealing device 18 also has a second section 18b on which a plurality of protrusions 18c . 18d . 18e . 18f having. The majority of protrusions 18c . 18d . 18e . 18f are preferably in different ports of (in 1 not shown) pressure medium conveyor sealing inserted.

The majority of protrusions 18c . 18d . 18e . 18f preferably have a cylindrical shape. The cylindrical shape is further preferably formed as a hollow cylinder. Alternatively, the plurality of protrusions 18c . 18d . 18e . 18f For example, be formed fully cylindrical or have another suitable shape.

A first advantage 18c preferably has a substantially perpendicular to the first, plan formed portion 18a the sealing device 18 trained wall section 18g and a substantially parallel to the first, plan trained portion 18a the sealing device 18 trained floor section 18k on.

A second advantage 18d preferably has a substantially perpendicular to the first, plan formed portion 18a the sealing device 18 trained wall section 18h and a substantially parallel to the first, plan trained portion 18a the sealing device 18 trained floor section 18l on.

A third advantage 18e preferably has a substantially perpendicular to the first, plan formed portion 18a the sealing device 18 trained wall section 18i and a substantially parallel to the first, plan trained portion 18a the sealing device 18 trained floor section 18m on.

A fourth advantage 18f preferably has a substantially perpendicular to the first, plan formed portion 18a the sealing device 18 trained wall section 18j and a substantially parallel to the first, plan trained portion 18a the sealing device 18 trained floor section 18n on.

The sealing device 18 also has a first, to the first section 18a the sealing device 18 molded flap 19a on. The first tab 19a has a substantially rectangular shape, so that a simple gripping the first tab 19a given by a user.

Preferably, the corners of the first tab 19a rounded. Alternatively, the first tab 19a also have another suitable shape. Furthermore, preferably a second tab 19b , a third tab 19c and a fourth tab 19d at the first section 18a the sealing device 18 formed. The first tab 19a is preferably adjacent to the first projection 18c arranged. The second tab 19b is preferably adjacent to the second projection 18d arranged. The third tab 19c is preferably adjacent to the third projection 18e arranged. The fourth tab 19d is preferably adjacent to the fourth projection 18f arranged.

The sealing device 18 is advantageously formed of rubber. Also are the to the sealing device 18 molded tabs 19a . 19b . 19c . 19d preferably formed of rubber. Alternatively, the sealing device 18 and the tabs formed on the sealing device 19a . 19b . 19c . 19d be formed of another suitable material.

2 shows a schematic representation of a pressure medium conveying device and the in 1 illustrated sealing device according to the preferred embodiment of the invention.

The pressure medium conveyor 10 preferably has a housing 12 on. To the casing 12 the pressure medium conveying device 10 is preferably a suction port 14 for supplying pressure medium in the pressure medium conveying device 10 arranged. On the case 12 the pressure medium conveying device 10 is further preferably a return port 15 for supplying pressure medium in the pressure medium conveying device 10 arranged. A (in 2 not shown) return of the pressure medium conveyor 10 preferably ensures an increase in a suction power of the pressure medium conveying device 10 by generating a negative pressure in a (in 2 not shown) suction channel of the pressure medium conveying device 10 , The housing 12 the pressure medium conveying device 10 further includes a first pressure port 16a and a second pressure port 16b on. Alternatively, the number of connections of the pressure medium conveying device 10 also from the in 2 deviate shown connections.

The housing 12 the pressure medium conveying device 10 preferably has a flat section 10a on. The suction connection 14 , the return port 15 , the first pressure connection 16a and the second pressure port 16b are preferably on the flat section 10a the pressure medium conveying device 10 arranged. The flat section 10a preferably acts as a metallic sealing surface, which is provided with a (in 2 not shown) connecting surface 1a a hydraulic system 1 connectable and to the interface 1a of the hydraulic system 1 is sealingly applied.

The preferably integrally formed sealing device 18 for sealing the pressure medium conveying device 10 is preferably on the surface formed as a metallic sealing surface trained section 10a the pressure medium conveying device 10 as well as on the surface trained section 10a the pressure medium conveying device 10 trained connections, in particular the suction connection 14 , the return port 15 , the first pressure connection 16a and the second pressure port 16b customized.

The sealing device 18 is moreover preferably designed to be the area formed area 10a the pressure medium conveying device 10 in sections in the area of the suction connection 14 , the return port 15 , the first pressure port 16a and the second pressure port 16b cover. Alternatively, the sealing device 18 also be designed to the area trained section 10a the pressure medium conveying device 10 completely cover. The sealing device 18 is preferably designed such that the plurality of projections 18c . 18d . 18e . 18f are arranged such that these in the respective terminals of the pressure medium conveying device 10 are insertable.

3 shows a schematic representation of the in 1 shown sealing device 18 in one in the pressure medium conveying device 10 inserted state and a hydraulic system 1 according to the preferred embodiment of the invention.

Im in the pressure medium conveyor 10 inserted state of the sealing device 18 stand the first tab 19a , the second tab 19b , the third tab 19c and the fourth tab 19d over the housing 12 beyond. This allows easy gripping of the tabs 19a . 19b . 19c . 19d be guaranteed. The tabs 19a . 19b . 19c . 19d are preferably formed with a corrugation on the surface. This allows the tangibility of the tabs 19a . 19b . 19c . 19d be further improved. The sealing device 18 is thus advantageously easy in the pressure medium conveying device 10 insertable as well as easily removable from this.

The (in 3 not shown) area trained section 10a the pressure medium conveying device 10 preferably acts as a metallic sealing surface which communicates with the bonding surface 1a of the hydraulic system 1 connectable and to the interface 1a of the hydraulic system 1 is sealingly applied.

Although the present invention has been described above with reference to preferred embodiments, it is not limited thereto but is modifiable in a variety of ways. In particular, the invention can be varied or modified in many ways without deviating from the gist of the invention.

For example, the sealing device can also be formed in such a way that it extends over a plurality of surfaces of the pressure medium conveying device if the connections of the pressure medium conveying device are distributed over a plurality of surfaces.

LIST OF REFERENCE NUMBERS

1

hydraulic system

1a

interface

10

Pressure fluid delivery device

10a

flat trained section

12

casing

14

suction

15

Return connection

16a

first pressure connection

16b

second pressure connection

18

sealing device

18a

first section

18b

second part

18c

first advantage

18d

second lead

18e

third advantage

18f

fourth lead

18g

first wall section

18h

second wall section

18i

third wall section

18j

fourth wall section

18k

first floor section

18l

second floor section

18m

third floor section

18n

fourth floor section

19a

first tab

19b

second tab

19c

third tab

19d

fourth tab

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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

• DE 102006009699 A1 [0003]

Claims (10)

Pressure medium conveying device ( 10 ), in particular for a motor vehicle, having a housing ( 12 ), to which a suction connection ( 14 ) for supplying pressure medium into the pressure medium conveying device ( 10 ) and at least one pressure port ( 16a . 16b ) for dispensing pressure medium from the pressure medium conveying device ( 10 ) are arranged, which for storage and / or transport of the pressure medium conveying device ( 10 ) before mounting in a hydraulic system ( 1 ) by a sealing device ( 18 ) are sealable, characterized in that the suction port ( 14 ) and the at least one pressure port ( 16a . 16b ) by an integrally formed sealing device ( 18 ) are sealable. Pressure medium conveying device according to claim 1, characterized in that the pressure medium conveying device ( 10 ) a flat section ( 10a ), at which the suction connection ( 14 ) and the at least one pressure port ( 16a . 16b ) are arranged, wherein the area formed area ( 10a ) is formed as a metallic sealing surface, which with a connection surface ( 1a ) of the hydraulic system ( 1 ) and to the connection surface ( 1a ) of the hydraulic system ( 1 ) is sealingly applied. Printing medium feed device according to claim 1 or 2, characterized in that the pressure-medium conveying device ( 10 ) a first pressure port ( 16a ) and a second pressure port ( 16b ) for dispensing pressure medium from the pressure medium conveying device ( 10 ), and wherein the pressure medium conveying device ( 10 ) a return port ( 15 ) for supplying pressure medium into the pressure medium conveying device ( 10 ), wherein the first pressure port ( 16a ), the second pressure port ( 16b ) and the return port ( 15 ) by the integrally formed sealing device ( 18 ) are sealable. Pressure medium conveying device according to claim 2 or 3, characterized in that the metallic sealing surface of the pressure medium conveying device ( 10 ) at least in sections by the integrally formed sealing device ( 18 ) is coverable. Sealing device ( 18 ) for sealing a pressure medium conveying device ( 10 ), in particular for a motor vehicle, which is designed to be attached to a housing ( 12 ) of the pressure medium conveying device ( 10 ) arranged suction port ( 14 ) for supplying pressure medium into the pressure medium conveying device ( 10 ) and at least one on the housing ( 12 ) of the pressure medium conveying device ( 10 ) arranged pressure connection ( 16a . 16b ) for dispensing pressure medium from the pressure medium conveying device ( 10 ) for storage and / or transport of the pressure medium conveying device ( 10 ) before mounting in a hydraulic system ( 1 ), characterized in that the sealing device ( 18 ) for sealing the suction connection ( 14 ) and the at least one pressure port ( 16a . 16b ) is integrally formed. Sealing device according to claim 5, characterized in that the sealing device ( 18 ) a first, plan trained section ( 18a ), which is designed to form a surface formed as a metallic sealing surface ( 10a ) of the pressure medium conveying device ( 10 ), and wherein the sealing device ( 18 ) a second section ( 18b ), which has a plurality of projections ( 18c . 18d . 18e . 18f ), which in the suction port and the at least one pressure port ( 16a . 16b ) of the pressure medium conveying device ( 10 ) are inserted sealingly. Sealing device according to claim 6, characterized in that the plurality of projections ( 18c . 18d . 18e . 18f ) one to a form of the suction port and the at least one pressure port ( 16a . 16b ) of the pressure medium conveying device ( 10 ) have adapted shape, wherein the projections ( 18c . 18d . 18e . 18f ) each one substantially perpendicular to the first, plan trained portion ( 18a ) of the sealing device ( 18 ) formed wall section ( 18g . 18h . 18i . 18j ) and a substantially parallel to the first, plan trained section ( 18a ) of the sealing device ( 18 ) formed floor section ( 18k . 18l . 18m . 18n ) exhibit. Sealing device according to one of claims 5 to 7, characterized in that the sealing device ( 18 ) is adapted to a first pressure port ( 16a ) and a second pressure port ( 16b ) of the pressure medium conveying device ( 10 ) for dispensing pressure medium from the pressure medium conveying device ( 10 ) and a return port ( 15 ) of the pressure medium conveying device ( 10 ) for dispensing pressure medium from the pressure medium conveying device ( 10 ) seal. Sealing device according to one of claims 6 to 8, characterized in that the plurality of projections ( 18c . 18d . 18e . 18f ) are cylindrical, and wherein the sealing device ( 18 ) is formed of rubber. Sealing device according to one of claims 6 to 9, characterized in that the sealing device ( 18 ) at least one, to the first section ( 18a ) of the sealing device ( 18 ) molded-on tab ( 19a . 19b . 19c . 19d ) for dismantling the sealing device ( 18 ) from the pressure medium conveying device ( 10 ) having.

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