DE102004058327A1 - Filling nozzle for a cooling circuit of a drive machine and motor vehicle with such a filler neck - Google Patents

Abstract

The invention relates to a filling nozzle for a cooling circuit of a drive engine of a motor vehicle, which is associated with a closure cap and which has a filling opening which can be closed with the closure cap, wherein a securing means in the form of a bayonet closure is provided between the closure cap and a tube wall of the filling nozzle, the at least one formed on the outside of the tube wall bayonet track having a control contour on which at least one arranged on the cap bayonet bar is feasible, and wherein an opening in the filling spout overflow is provided, which closes when fully on the filling cap attached cap and in a Partial opening position of the cap is released. DOLLAR A For comfortable operation of the cap is provided that the control contour (57) of the bayonet track (55) between a web beginning (60) and a tail (61) has a recess (66) into which the bayonet lock (59) can enter and which recess is assigned to the partial opening position (P2).

Description

at the invention is based on a filling nozzle for a cooling circuit of a drive machine, according to the generic term of claim 1, and a motor vehicle with such filling nozzle, according to the generic term of claim 7.

One generic filling nozzle, for example, for closing of coolers on motor vehicles, is known from DE-OS 21 45 441. The filling nozzle is associated with a cap, which has a filling opening on filling union close can, if the cap is placed on the neck, and the filling opening to supplement coolant can release when the cap is completely removed. To hold or attaching the cap on the filler neck is a securing means provided in the form of a bayonet closure, on the one hand at the filling a bayonet track with a control contour and on the cap a bayonet bar, which on the control contour of the bayonet track while turning the lid is. The bayonet track can be on the outside of the pipe wall of the filling nozzle be educated. In hot coolant it can be in the cooling circuit come to a pressure build-up, the removal of the cap to do so to lead can that coolant from the filling nozzle exit so that an operator can be injured. To this, too avoid, the filler neck has an overflow pipe out in the filler neck in such a way opens that he is at complete on the filler neck attached cap is closed, and for one Pressure reduction in hot cooling medium the closure cap can be moved into a partial opening position, while they are on the filler neck is still held, the overflow pipe of the cap, however, is released, so that over the overflow pipe the pressure reduction can take place.

A similar embodiment of a filling is further in the DE 30 07 272 C2 described. The closure cap shown therein can be in an unspecified Überdies is from the post-published patent application DE 103 59 767 .0 a filling nozzle with an overflow pipe has become known, which overflow pipe is provided with a cap. Between cap and filling can be provided as a securing means a bayonet closure.

task The invention is a filler neck specify the type mentioned, in addition to a comfortable Placing and removing the cap provides adequate security during pressure reduction over given the overflow pipe is.

Is solved this task with a filling nozzle or a motor vehicle with such a filler neck, which / which the features mentioned in claim 1 or claim 7 includes. Further, the invention ausgestaltende features are in the respectively associated dependent claims specified.

The with the invention mainly achieved advantages are the fact that the cap in the partial opening position engages when the cooling medium under pressure. The medium pressure is when removing the Cap this urged with their bayonet latch in the recess, so that only after a pressure reduction via the overflow pipe The cap can be further rotated and completely removed. Thereby, that the recess between a web start and a tail the bayonet is located and thus the partial opening position of the cap between the completely closed and complete open Position can be comfortable operation of the cap done without these overpressures or over one Turn over stop to have to. If the cap is to be removed in a pressureless cooling circuit, the locking recess is skipped when turning the cap.

The full closed position the cap is advantageously by one at the tail defined limit stop as defined in claim 2 is.

By the development of the invention with the mentioned in claim 3 Features make the cap particularly easy from the filler neck be removed.

To a development with the features mentioned in claim 4 the stroke of the cap varies depending on the angle of rotation be, in particular at the transition a larger pitch is selected for the recess, so that the overflow pipe is suddenly released, which accelerates the pressure reduction. One particular embodiment this is specified in claim 6.

In an embodiment specified in claim 8 is advantageous that a barrier is created by the opposite arrangement of filling and drain opening of the overflow pipe to a wall of the body through the wall itself, which emerge the risk of unwanted contact with the from the overflow pipe the cooling medium for an operator is at least reduced when the cap is removed.

With the features mentioned in claim 11 is in an advantageous manner achieved that when removing the cap of the overflow pipe of the shut-off is already released before the cap Completely is removed, so that any existing pressure in the cooling circuit no over the filling opening, but about the overflow pipe can degrade.

at an embodiment according to claim 13 is the release or closing of the overflow nozzle to simple Fashion achieved.

To a development of the invention with the recited in claim 14 Characteristics is advantageous that when refilling the cooling circuit with liquid possibly spilled liquid can be collected and thus surrounding vehicle parts, for example Covering parts are protected.

Prefers is a variant according to Claim 15, wherein in the drip tray liquid passed over the Drainage can be derived.

One embodiment with the features contained in claim 17 is characterized by a simple manufacturability. These are filling nozzles, overflow nozzles and drip tray aligned with each other so that they are produced in one piece, for example, by plastic injection molding, be removed from the injection mold together can.

With The features of claim 19, a refilling of the liquid can be made possible without to have access to the engine compartment. In particular, this is advantageous in vehicles where the prime mover is not directly accessible is, as for example in motor vehicles with mid-engine arrangement given is.

Corresponding Claim 23, the vehicle interior is formed continuously and includes the passenger compartment and the luggage compartment, as this particular in a passenger car with a body in the form of a Coupes with mid-engine is provided.

The Invention will now be described with reference to embodiments with reference closer to the drawing explained.

It demonstrate:

1 schematically in cutaway side view of a motor vehicle as a passenger car,

2 a section of a service unit, which has a filling nozzle of a cooling circuit of a drive machine of the motor vehicle,

3 in cut (section line III - III in 2 ) Detail view of the filling nozzle with a cap and an overflow nozzle according to a first embodiment of the service unit,

4 in a sectional view of a filling nozzle with a cap and an overflow nozzle according to a second embodiment of a service unit,

5 a third embodiment of a service unit and

6 a detailed representation of a bayonet lock the service unit after 5 ,

This in 1 Motor vehicle cut open parallel to the vehicle longitudinal axis FL 1 , in particular a passenger car, has one of wheels 2 worn construction 3 with a body 4 standing on a floor group 5 of the construction 3 touches down and the several walls 4 ' includes which walls 4 ' several vehicle spaces 6 . 7 . 8th and 9 limit. In one of the vehicle spaces 6 . 8th . 9 , the engine compartment, is a prime mover 10 of the motor vehicle 1 accommodated, which is designed in particular as an internal combustion engine. In the present embodiment, the drive machine 10 in so-called. Mid-engine arrangement in the motor vehicle 1 in the vehicle compartment 8th arranged and the vehicle spaces 6 and 9 form a rear and front luggage space. However, it would be readily conceivable, the prime mover 10 in the front vehicle compartment 6 or in the rear vehicle compartment 9 So to arrange as a front or rear engine. The individual vehicle spaces 6 . 7 . 8th and 9 are from the walls 4 ' surrounded, some of them as partitions 11 . 12 and 13 are provided and two vehicle spaces 6 . 7 . 8th . 9 divide from each other, being in front of an end wall or bulkhead 11 ' the partition 11 is arranged and with this between the vehicle spaces 6 and 7 lies. The splashboard 11 ' can form another partition. The partitions 11 ' . 11 . 12 and 13 are substantially upright or have at least one wall section 14 , which is essentially upright, that runs approximately in the direction of the vehicle vertical axis FH.

To the prime mover 10 is still a gear unit 15 flanged in the embodiment shown - seen in the direction FR - behind the prime mover 10 and in the embodiment shown below the floor 9 ' of the vehicle compartment 9 is arranged. The prime mover 10 is cooled with liquid and therefore comprises a cooling circuit, not shown here in detail, from which in the 2 and 3 only a filling nozzle 16 is shown. The filling nozzle 16 Here is a service unit 17 assigned in one of the vehicle spaces 6 . 8th or 9 on one of the walls 4 ' , in particular one of the partitions 11 . 12 or 13 , is arranged. In the exemplary embodiment, this is the partition wall 13 the vehicle spaces 8th and 9 , For example, the service unit includes 17 next to the filling nozzle 16 an oil filler neck 18 the one with a lid 19 is closed.

With reference to a first embodiment of the service unit 17 will be the filler neck in the following 16 based on 3 explained in more detail, wherein in 3 the same or equivalent parts as in the 1 and 2 are provided with the same reference numerals. The filling nozzle 16 includes a filling opening 20 in the vehicle compartment 9 lies and at a free end of a filling section 21 the filling nozzle 16 is formed, which Einfüllabschnitt 21 in an angled thereto connecting section 22 passes to the not shown here cooling circuit of the prime mover 10 connected. From the filling nozzle 16 with its pipe wall 23 goes an overflow pipe 24 off, near the filler opening 20 and at the filling section 21 lies. The overflow pipe 24 is formed by a tubular extension which is laterally of the filling 16 goes out and an inlet opening 25 in the pipe wall 23 having. It runs approximately parallel to the connection section 22 the filling nozzle 16 , The inlet opening 25 opposite at the other end of the overflow nozzle 24 this ends in the on the vehicle compartment 9 adjacent vehicle space 8th so that the filling hole 20 with respect to the partition 13 on a first page 26 and one of the inlet opening 25 opposite, end outlet opening 27 the overflow nozzle 24 at the first page 26 opposite second side 28 the partition 13 to come to rest. In other words: the filling opening 20 lies in another vehicle compartment 6 . 7 . 8th . 9 as the drain hole 27 the overflow nozzle 24 , In the embodiment shown is thus on the first page 26 the partition 13 the vehicle compartment 9 and on the second page 28 the partition 13 the vehicle compartment 8th ,

In 1 is between the vehicle's outer skin 29 and the upright partition 13 still a web plate 30 provided, which the vehicle compartment 9 and the vehicle compartment 7 divided, which could also be omitted, so that also referred to as the passenger compartment vehicle compartment 7 and also to be used as a luggage compartment vehicle compartment 9 a continuous vehicle interior 31 form.

As in 3 can be seen further, the filling nozzle interspersed 16 with its connection section 22 the partition 13 in a breakthrough 32 , Similarly, the interspersed after the filling opening 20 from the filling nozzle 16 outgoing overflow pipe 24 the partition 13 in another breakthrough 33 , Further shows 3 a cap 34 for the filling nozzle 16 that the filling hole 20 sealingly closes, for what an inner, for example tubular extension 35 outboard a seal 36 is circumferentially attached to the inside 37 the pipe wall 23 interacts. The length LF of the extension 35 is dimensioned so that this together with the seal 36 a shut-off device for the overflow nozzle 24 forms, which extension 35 thus spaced from the filling opening 20 lying overflow pipe 24 with its inlet opening 25 closes when the cap 34 is completely placed on the filler neck. For attaching the cap 34 on the filler neck 16 can be a suitable securing agent 38 be provided, which between the filling nozzle 16 cross-section of the cap 34 and the outside 39 the pipe wall 23 is provided. This securing agent 38 can be designed in particular as a screw or bayonet lock. When removing the cap 34 from the filling nozzle 16 thus gives the extension 35 the inlet opening 25 free, so that the possibly in the cooling circuit pressurized hot liquid in the Übelaufstutzen 24 enter, about this directed away from the filler neck 16 on the second page 28 the partition 13 out and there can be derived in the example below open engine compartment. It would be conceivable to the drain opening 27 the overflow nozzle 24 an extension, for example in the form of a hose o. Ä. To set. Through the overflow pipe 24 can thus when removing the cap 34 Overpressure can be reduced within the cooling circuit, leaving the filling opening 20 no coolant escapes. Only after complete removal of the cap 34 , when the pressure is reduced, can fill the cooling circuit via the filling nozzle 16 respectively. In 3 is dash-dotted still a connecting piece 40 hinted at the partition 13 can prevail and with a possibly existing expansion tank of the cooling circuit and the filling nozzle 16 connected is.

Around the filling opening 20 or around the outside 30 the pipe wall 23 the filling nozzle 16 is at least partially around the filling nozzle 16 circumferential collar 41 as a catch tray 42 trained, which catches any liquid spilled when refilling liquid for the cooling circuit, so that these are not in the vehicle compartment 6 . 7 . 8th respectively. 9 enters, in the filling nozzle 16 protrudes. The drip tray 42 is at a distance from the filling opening 20 in the direction of connection section 22 set back, conceals the overflow pipe 24 and also towers over with its lower collar portion 43 the overlying filling opening 20 ,

To get in the drip tray 42 to be able to derive trapped liquid is - according to 3 - In the area of the lower collar section 43 a drain pipe 44 provided, which is indicated by dash-dotted lines and in particular the partition 13 penetrates and so the liquid in the room 8th transported away, so on the second page 28 in the room 8th empties. Preferably, drip trays 42 and drainpipes 44 made in one piece. In a particularly preferred embodiment, the filling nozzle 16 , the overflow neck 24 and the drip tray 42 in one piece, for example as a plastic injection molded part. To the finished one-piece part, consisting of filling 16 , Overflow pipe 24 and preferably drip tray 42 to be able to remove from the injection mold, the connection section runs 22 and the filling section 21 at an angle to each other and the overflow port of the filling section 21 goes out, runs approximately parallel to the connection section 22 , In addition, the drip tray extends 42 with her shell wall, so the collar 41 , in the direction of the filling opening 20 so that's the shell bottom 45 adjacent to the pipe wall 23 the filling nozzle 16 lies and the shell circumference wall 46 starting from the bottom of the tray 45 essentially in the vehicle compartment 9 extends into it, eliminating the drip tray 42 if necessary, in one piece with the filling nozzle 16 and the overflow pipe 24 could be made. Possibly. can the drain neck 44 and the connecting piece 40 integral with the filling nozzle 16 be realized.

The drip tray 42 can in a fairing part 47 be used, which is the dividing wall 13 or the vehicle compartment 9 and that can be designed as a molding and / or carpet covering.

According to a further embodiment of a service unit 17 according to 4 is the filling nozzle with an extension 48 equipped opposite the rest of the filling section 21 with a larger inside diameter of the pipe 23 is provided. The extension 48 has the filling opening 20 on and wearing the cap 34 , The extension 48 gets through a stage 49 formed, which is the inner diameter of the pipe 23 extended and the one stepped floor 50 in the filling section 20 forms, which stepped bottom as a sealing surface 51 serves, with the now at a fork-like front end 52 of the extension 35 the cap 34 interacts and so the shut-off for the overflow 24 forms. At the headland 52 is to receive the seal 36 an annular groove 53 educated. Above the step floor 50 , ie adjacent to the filling opening 20 , is about the inlet opening 25 which may be approximately oval in cross-section when the overflow nozzle 24 tangential to the pipe 23 attaches.

The filling nozzle 16 , Overflow pipe 24 and possibly the connecting piece 40 can be together with the collar 41 be executed in one piece. The drip tray 42 is executed as a separate part and at a joint 54 with the collar 41 connected, for example by gluing or welding. As related to 3 already explained, the drip tray 42 in the trim part 47 used and at least the overflow pipe 24 penetrates the wall 4 ' , Otherwise, in 4 the same or equivalent parts with the same reference numerals as in the 1 to 3 Mistake. In the embodiments, the filling nozzle 16 with its outgoing neck 24 . 40 and 44 and the drip tray 42 made of plastic.

At the service unit 17 according to a third embodiment according to 5 the same or equivalent parts are provided with the same reference numerals as in the preceding 1 to 4 in this respect reference is made to their description. On the outside 39 the pipe wall 23 the filling nozzle 16 is below the filling opening 20 at least a bayonet track 55 as a survey on the outside 39 arranged at an angle to the mouth edge 56 the filling opening 20 partly over the circumference of the pipe wall 23 extends. In the embodiment shown are three associated bayonet tracks 55 provided over the circumference of the pipe wall 23 are arranged distributed. Every bayonet track 55 has a control contour 57 , each at the bottom 57 ' the as a survey on the pipe wall 23 executed bayonet track 55 is trained. When putting the in 5 not shown cap 34 , however, in 4 is shown, at least one comes on the inside 58 mounted bayonet bar 59 in engagement with one of the bayonet tracks 55 , each one for a removal or placement of the cap enabling web start 60 and one of the in 4 shown closed position associated tail 61 exhibit.

In 6 is one of the bayonet tracks 55 in from the outside 39 completed illustration shown. The control contour 57 extends between the web start 60 and the tail end 61 , preferably over a rotation angle range of the closure cap 34 which is less than 360 °, for example 140 °, by definition by Bah Calling 61 the angle of rotation is 0 °. The control contour 57 has several track sections 62 . 63 . 64 and 65 on, wherein a first track section 62 adjacent to the end of the railway 61 essentially without slope, that is approximately horizontal and - in the direction of the web start 60 seen - in a second track section 63 passes, which has a slope. At the second track section 63 closes in a third section of track 64 a recess 66 at the end of the second track section 63 a steep slope with steep slope 67 includes, which in a basic section 68 passes without or with little slope. To the basic section 68 closes a second now sloping web edge 69 at the fourth track section 65 passes, for example, continuously rising to the beginning of the web 60 runs. The fourth track section 65 may have a larger, smaller or the same pitch as the second track section 63 , The tail end 60 is preferably carried out without a stop, so that the bayonet lock 59 without overpressing the cap 34 out of engagement with the control contour 57 , so the bayonet, can be brought. The tail end 61 however, has an end stop 70 on, the over-tightening of the cap 34 prevented.

The result for the actuation of the closure cap following function, wherein from the fully mounted position P1 or closed position of the cap 34 it is assumed which position P1 is present when the bayonet latch 59 at the end stop 70 is applied. At an opening rotation of the cap 34 the bayonet latch arrives 59 along the first track section 62 in the second track section 63 in which the cap 34 from the filling nozzle 16 is lifted slightly. A further rotation of the cap 34 As a result, the bayonet latch 59 over the first track edge 67 in the recess 66 when inside the filling nozzle 16 an overpressure prevails, thus the cap 34 works and this with her bayonet bar 59 in the recess 66 urges until the bayonet bar 59 on the ground section 68 to come to rest. A further rotation of the cap is due to the steeply sloping web edge 69 prevented. The height HO of the web flank 69 is sized to the inlet opening 25 preferably completely from the extension 35 the cap 34 is released when the bayonet latch 59 at the base section 68 is applied. Is the bayonet latch 59 on the ground section 68 , is the partial opening position P2 of the cap 34 reached, in which the extension 35 the estuary 25 the overflow nozzle 27 releases so that the pressure over the overflow nozzle 24 can be derived. After complete pressure reduction, the cap can be 34 without much effort again from the recess 66 move out and so enters the position P3 at the beginning of the fourth track section 65 , Further rotation of the cap lifts it finally up to the position P4 at the tail 60 at which position P4 the cap 34 completely from the filler neck 16 can be removed.

Located inside the filling nozzle 16 , For example, in cold cooling medium, no pressure increase, the cap can 34 starting from its closed position P1 at the end stop 70 over the first track section 62 , the second track section 63 and the third track section 64 with the recess 66 skipping directly to position P3 to be moved to the end of the track 60 to be able to move on. The recess 66 is therefore skipped at substantially unpressurized cooling circuit, since no pressure is present, the cap 34 with her bayonet latch 59 can push into the recess.

In 6 It can also be seen that the angle of rotation for the closure cap between the first position P1 and the second position P2 is greater than the angle of rotation between the second and third position P3. The angle of rotation between the third and the fourth position P4 is greater than the other two angles of rotation, this being merely an example and the angles of rotation can be varied as desired. It should also be noted that the bayonet 55 instead of on the outside 39 for example, on the inside 58 the cap 34 and the bayonet latch 59 according to the outside 39 of the pipe socket 23 could lie.

Claims (23)

Filling nozzle for a cooling circuit of a drive engine of a motor vehicle, which is associated with a closure cap and which has a filling opening which can be closed with the closure cap, wherein a locking means in the form of a bayonet closure is provided between the closure cap and a tube wall of the filling nozzle, at least one on the outside the bayonet track formed with a control contour on which at least one arranged on the cap bayonet bar is feasible, and wherein an opening in the filling spout overflow is provided which is closed when fully on the filling nozzle attached cap and released in a partial open position of the cap, characterized in that the control contour ( 57 ) of the bayonet track ( 55 ) between a web start ( 60 ) and a tail ( 61 ) a latching recess ( 66 ) into which the bayonet latch ( 59 ) can occur and which recess of the Teilöffnungspositi is assigned on (P2). Filling nozzle according to claim 1, characterized in that the tail ( 61 ) an end stop ( 70 ) for the bayonet latch ( 59 ) having. Filling nozzle according to claim 1, characterized in that the web beginning ( 60 ) is executed without a stop. Filling nozzle according to claim 1, characterized in that the control contour ( 57 ) several track sections ( 62 to 65 ) with different pitch. Filling nozzle according to claim 1 or 2, characterized in that the tail ( 61 ) or the end stop ( 70 ) a first track section ( 62 ) is arranged without slope. Filling nozzle according to one of the preceding claims, characterized in that the control contour ( 57 ) in the region of the recess ( 66 ) two spaced-apart web edges ( 67 . 68 ), between which a basic section ( 68 ) is without or with little slope. Motor vehicle with a body, one over one cooling circuit with liquid cooled Drive machine and with a filling nozzle according to one of claims 1 to 6th Motor vehicle according to claim 7, characterized in that the overflow pipe is equipped with an end-side drain opening and that the filling opening ( 20 ) of the filling nozzle ( 16 ) on a first page ( 26 ) a wall ( 4 ' ) of the body ( 4 ) and the overflow pipe ( 24 ) with its drain opening ( 27 ) on the other side opposite the first side ( 28 ) the Wall ( 6 . 7 . 8th . 9 ) opens. Motor vehicle according to claim 8, characterized in that the filling nozzle ( 16 ) the wall ( 4 ' ) of the body ( 4 ) interspersed. Motor vehicle according to claim 7, characterized in that the overflow connection ( 24 ) near the filling opening ( 20 ) of the filling nozzle ( 16 ) and the wall ( 4 ' ) of the body ( 4 ) interspersed. Motor vehicle according to claim 7, characterized in that the closure cap ( 34 ) an inner extension ( 35 ), which in the filling nozzle ( 16 ), which extension ( 35 ) a blocking means for the spaced from the filling opening ( 20 ) overflow pipe ( 24 ). Motor vehicle according to claim 7, 8 or 9, characterized in that the overflow connection ( 24 ) laterally from the filling nozzle ( 16 ) and an inlet opening ( 25 ) in the pipe wall ( 23 ) of the filling nozzle ( 16 ) having. Motor vehicle according to claim 11, characterized in that the shut-off means on the filling nozzle ( 16 ) attached cap ( 34 ) the inlet opening ( 25 ) and when removing the cap ( 34 ) releases. Motor vehicle according to claim 7, characterized in that the filling nozzle ( 16 ) near the filling opening ( 20 ) from a drip tray ( 42 ) forming collar ( 41 ) is at least partially surrounded. Motor vehicle according to claim 14, characterized in that the drip tray ( 42 ) an outlet nozzle ( 44 ) on the second side ( 28 ) the Wall ( 4 ' ) of the body ( 4 ) opens. Motor vehicle according to claim 14 or 15, characterized in that the filling nozzle ( 16 ) and the drip tray ( 42 ) are made in one piece. Motor vehicle according to one of the preceding claims 7 to 16, characterized in that the filling nozzle ( 16 ), the overflow pipe ( 24 ) and the drip tray ( 42 ) are made in one piece, wherein the filling nozzle ( 16 ) a connection section ( 22 ) for the cooling circuit and at an angle to the connection portion extending filling section ( 21 ), which filling section ( 21 ) the filling opening ( 20 ), that the overflow nozzle ( 24 ) of the filling section ( 21 ) and thereby approximately parallel to the connection section ( 22 ) and that the drip tray ( 42 ) of the filling section ( 21 ) and with its shell peripheral wall ( 46 ) in the direction of the filling opening ( 20 ). Motor vehicle according to one of the preceding claims 7 to 15, characterized in that the filling nozzle ( 16 ) and the drip tray ( 42 ) are each designed as a separate part and connected to each other. Motor vehicle according to claim 7, characterized in that the wall ( 4 ' ) a partition wall ( 11 ' . 11 . 12 . 13 ) which forms an engine compartment (vehicle compartment 8th ) for the prime mover ( 10 ) and another vehicle compartment ( 6 . 7 . 9 ) Splits. Motor vehicle according to claim 7 and 19, characterized in that the drive machine ( 10 ) in mid-motor arrangement in the motor vehicle ( 1 ) is housed and that the partition ( 11 ' . 11 . 12 . 13 ) the engine compartment (vehicle compartment 8th ) from a luggage compartment (vehicle compartment 9 ). Motor vehicle according to one of claims 19 or 20, characterized in that the partition wall ( 11 ' . 11 . 12 . 13 ) about upright within the body ( 4 ) stands. Motor vehicle according to claim 7 and 19, characterized in that on the second side ( 28 ) the Wall ( 4 ' ) the engine compartment for the prime mover ( 10 ) and on the first page ( 26 ) the Wall ( 4 ' ) the luggage room is located. Motor vehicle according to claim 19, 20, 21 or 22, characterized in that a passenger compartment (vehicle compartment 7 ) and the luggage compartment (vehicle compartment 9 ) a vehicle interior ( 31 ) form.