Indicating instrument

The invention relates to an indicating instrument, particularly for a motor vehicle, comprising an approximately circular scale ( 12 ), which is placed on a dial ( 5 ), provided for a physical quantity, and along which a pointer ( 10 ) can be displaced whereby being able to be rotatably driven about an axis of rotation. Additionally provided is a marking that indicates a particular area of the scale ( 12 ). The marking is placed on a part ( 27 ), which is situated underneath the plane of the dial ( 5 ) whereby enabling it to be rotatably driven about the axis or rotation of the pointer ( 10 ) into a control position. The dial ( 5 ) comprises, along the movement path of the marking, a window ( 13 ) through which the marking can be viewed from the front of the indicating instrument.

Granulated hydrophobic additive for gypsum compositions

A hydrophobic gypsum composition is provided which contains gypsum, a granulated hydrophobing additive and a pH effecting additive in an amount sufficient to maintain the pH of the composition in the range of 8 and 12.5, in the presence of water. The granule contains an organopolysiloxane having silicon bonded hydrogen, a water soluble or water dispersible binder, and a carrier, preferably gypsum or a stearate salt, in an amount sufficient to hydrophobe the gypsum. The pH effecting additive is preferably lime but may be any appropriate additive.

Indicating instrument

The invention relates to an indicating instrument, particularly for a motor vehicle, comprising an approximately circular scale ( 12 ) which is placed on a dial ( 5 ), provided for a physical quantity, and along which a pointer ( 10 ) can be displaced whereby being able to be rotatably driven about an axis of rotation. Additionally provided is a marking that indicates a particular area of the scale ( 12 ). The marking is placed on a part ( 27 ), which is situated underneath the plane of the dial ( 5 ) whereby enabling it to be rotatably driven about the axis or rotation of the pointer ( 10 ) into a control position. The dial ( 5 ) comprises, along the movement path of the marking a window ( 13 ) through which the marking can be viewed from the front of the indicating instrument.

Clutch release device for a friction clutch of a motor vehicle with a multi-part sliding sleeve

A clutch-release device for a friction clutch of a motor vehicle includes a guide tube and a sliding sleeve, which is free to shift position axially on the tube, the sleeve having a contact area for absorbing the actuating force of an actuating element. A clutch-release bearing is mounted on the sliding sleeve, the bearing having a nonrotatable first bearing ring, rolling elements, and a rotating second bearing ring, which is in working connection with an actuating element of the friction clutch. To increase the number of identical parts and thus to reduce costs, the sliding sleeve has a multi-part design, thus representing an assembly having at least two parts.

Release system for a clutch assembly

A release system for a clutch assembly comprises a release slide, which is or can be connected to a stored-energy element of the clutch assembly to execute release movements, and at least one brake element, which can move along with the release slide during the execution of release movements. This brake element can be brought into braking interaction with an opposing brake element which is or can be connected in an essentially nonrotatable manner to a clutch output shaft, where the release slide and the minimum of one brake element form a piston/cylinder unit with at least one fluid chamber. Pressure fluid is introduced into the minimum of one fluid chamber to produce a force which preloads or moves the minimum of one brake element relative to the release slide.

Dashboard for a motor vehicle

The invention relates to a dashboard for a motor vehicle, with a screen for displaying information, the screen being arranged in front of the dashboard as seen by a vehicle occupant. In order to form a dashboard such that the screen can be read equally well both by the driver and by the passenger, depending on requirements, with the installation space in the region of the dashboard at the same time being utilized in an optimum manner, the screen can be moved along the dashboard in the horizontal direction.

Actuation device for a friction clutch

The actuation device includes a pressure medium force cylinder arrangement by means of which the friction clutch can be actuated via a release member. A measuring member of a measuring arrangement detecting an actual release is in tractive force driving engagement with an associated mating member whose position represents the actual release along a measurement path, which engagement is essentially free from play.

Release system for a clutch assembly

A release slide is or can be connected to a stored-energy element of the clutch assembly for executing a release movement, and at least one brake element can move along with the release slide during the execution of a release movement, which brake element can be brought into braking interaction with a counter-braking element, which is or can be connected in essentially nonrotatable fashion to a clutch output shaft, where the minimum of one brake element can shift position relative to the release slide at least to compensate for the wear which occurs in the area of the clutch assembly. A latching arrangement includes a set of latching teeth on either the release slide or on the brake element, and a latching element on the other of the brake element and the release slide. The latching arrangement allows relative motion between the release slide and the brake element when wear occurs, but allows essentially no relative motion between the release slide and the brake element when the release ...

Actuation device for a friction clutch

The actuation device includes a pressure medium force cylinder arrangement by means of which the friction clutch can be actuated via a release member. A measuring member of a measuring arrangement detecting an actual release is in tractive force driving engagement with an associated mating member whose position represents the actual release along a measurement path, which engagement is essentially free from play.

Display device

A display device, in particular for a vehicle, having a pointer which can be actuated by a measuring mechanism for analog representation of measured values, the display device including fixed scale marks which are assigned to the pointer, and a display, arranged in a region over at least part of which the pointer travels, for representing variable information, it being possible to represent scale labeling on the display. In order to reduce the manufacturing costs of the display device and to improve its legibility, the scale marks are arranged outside a display region which can be actuated, and at least one region of the display extends along the scale marks so that it is possible to represent the scale labeling in this region.

Release system for a clutch assembly

A release system for a clutch assembly comprises a release slide, which is or can be connected to a stored-energy element of the clutch assembly to execute release movements, and at least one brake element, which can move along with the release slide during the execution of release movements. This brake element can be brought into braking interaction with an opposing brake element which is or can be connected in an essentially nonrotatable manner to a clutch output shaft, where the release slide and the minimum of one brake element form a piston/cylinder unit with at least one fluid chamber. Pressure fluid is introduced into the minimum of one fluid chamber to produce a force which preloads or moves the minimum of one brake element relative to the release slide.

Granulated hydrophobic additive for gypsum compositions

A hydrophobic gypsum composition is provided which contains gypsum, a granulated hydrophobing additive and a pH effecting additive in an amount sufficient to maintain the pH of the composition in the range of 8 and 12.5, in the presence of water. The granule contains an organopolysiloxane having silicon bonded hydrogen, a water soluble or water dispersible binder, and a carrier, preferably gypsum or a stearate salt, in an amount sufficient to hydrophobe the gypsum. The pH effecting additive is preferably lime but may be any appropriate additive.

Release system for a clutch assembly

A release slide is or can be connected to a stored-energy element of the clutch assembly for executing a release movement, and at least one brake element can move along with the release slide during the execution of a release movement, which brake element can be brought into braking interaction with a counter-braking element, which is or can be connected in essentially nonrotatable fashion to a clutch output shaft, where the minimum of one brake element can shift position relative to the release slide at least to compensate for the wear which occurs in the area of the clutch assembly. A latching arrangement includes a set of latching teeth on either the release slide or on the brake element, and a latching element on the other of the brake element and the release slide. The latching arrangement allows relative motion between the release slide and the brake element when wear occurs, but allows essentially no relative motion between the release slide and the brake element when the release ...

ACTUATION DEVICE FOR FRICTION CLUTCH

Pour un dispositif d'actionnement d'un embrayage à friction (2) agencé dans le train d'entraînement d'un véhicule automobile, comportant un agencement d'asservissement en position (74, 52) avec un agencement de cylindre pneumatique (56) agissant sur un agencement de débrayage (48), ledit agencement d'asservissement en position pouvant être actionné via une soupape de commande (74) reliée à une source pneumatique en dépendance d'une grandeur de référence représentant une position de consigne et une grandeur réelle représentant la position axiale de l'agencement de débrayage, on propose conformément à l'invention que l'agencement de cylindre pneumatique (56) soit agencé à l'intérieur de la cloche de boîtier (84), et que la soupape de commande (74) soit agencée à l'extérieur de la cloche de boîtier ou du moins en partie à l'intérieur de la cloche de boîtier, mais de façon accessible ou/et démontable depuis l'extérieur lorsque la cloche de boîtier est reliée au moteur. For a device for actuating a friction clutch (2) arranged in the drive train of a motor vehicle, comprising a servo arrangement in position (74, 52) with a pneumatic cylinder arrangement (56) acting on a disengaging arrangement (48), said position servo arrangement being operable via a control valve (74) connected to a pneumatic source in dependence on a reference quantity representing a setpoint position and an actual quantity Showing the axial position of the disengaging arrangement, it is proposed in accordance with the invention that the pneumatic cylinder arrangement (56) is arranged inside the housing bell (84), and that the control valve ( 74) is arranged outside the housing bell or at least partly inside the housing bell, but in an accessible or / and removable manner from the outside when the housing bell is connected to the motor.

Hydraulically operated clutch slave cylinder for a motor vehicle friction clutch.

L'invention concerne un cylindre récepteur de débrayage à commande hydraulique, pour un embrayage à friction de véhicule automobile, dans lequel il est prévu, à l'intérieur d'une chambre de pression hydraulique annulaire (25), une bague d'étanchéité (1) avec des lèvres d'étanchéité (2, 3) tournées vers le fond de la chambre (25), et des lèvres de raclage (4, 5) tournées dans le sens opposé, la bague d'étanchéité (1) s'appliquant contre un piston annulaire (31) associé à une butée de débrayage (33). On obtient ainsi une séparation parfaite entre l'huile minérale, présente d'un côté et le liquide de frein introduit de l'autre côté, utilisé comme liquide sous pression pour l'actionnement de l'embrayage. The invention relates to a hydraulically operated clutch slave cylinder for a friction clutch of a motor vehicle, in which there is provided, inside an annular hydraulic pressure chamber (25), a sealing ring ( 1) with sealing lips (2, 3) turned towards the bottom of the chamber (25), and scraper lips (4, 5) turned in the opposite direction, the sealing ring (1) s' applying against an annular piston (31) associated with a declutching stop (33). A perfect separation is thus obtained between the mineral oil, present on one side and the brake fluid introduced on the other side, used as pressurized fluid for actuating the clutch.

Assembly unit for release device in pull-type friction clutch

The release bearing (19) is enclosed by a piston which forms with the housing (3) fixed on the gearbox housing a pressure chamber (15). The housing (13) has parallel to the longitudinal axis (1) of the piston (5) at least one bore (35) contg. a pin (37) supported on a stop (39). The pin is self locking but axially displaceable. The stop (39) is mounted on a component connected to the release bearing. Two bores and two pins can be arranged diametrically opposite each other on the housing.The locking device for the release components has a clamping face on one of the components and an associated clamping element. A stop element (39) on the other of the components entrains the clamping element during relative movement as a result of hydraulic strain on the pressure chamber (15).

HYDRAULICALLY CONTROLLED CLUTCH RECEIVING CYLINDER FOR A FRICTION CLUTCH OF A MOTOR VEHICLE.

ACTUATION DEVICE FOR AN AGENCY FRICTION CLUTCH IN THE DRIVE OF A MOTOR VEHICLE, AND DRIVE TRAIN COMPRISING SUCH A DEVICE

OPERATING DEVICE FOR AN AGENCY FRICTION CLUTCH IN THE DRIVE OF A MOTOR VEHICLE, AND DRIVE TRAIN COMPRISING SUCH A DEVICE

Un dispositif d'actionnement (10) pour un embrayage à friction agencé dans le train d'entraînement d'un véhicule automobile entre une unité d'entraînement et une boîte de vitesses. Le dispositif d'actionnement comprend un agencement de vérin à fluide sous pression (28), par l'intermédiaire duquel l'embrayage à friction peut être actionné via un organe de débrayage (26). Selon un aspect de l'invention, on prévoit pour établir une liaison d'accouplement en termes de déplacement entre un organe de mesure (18) d'un agencement de mesure (16) qui détecte un débrayage réel, et un organe complémentaire associé (26) qui représente par sa position le débrayage réel, que ces deux organes puissent être amenés en engagement d'entraînement sous effort de traction sensiblement sans jeu, et cela par un rapprochement mutuel de l'organe de mesure (18) d'une part et de l'organe complémentaire (26) d'autre part le long d'un trajet de mesure de l'organe de mesure. An actuator (10) for a friction clutch arranged in the drive train of a motor vehicle between a drive unit and a gearbox. The actuator comprises a pressurized fluid cylinder arrangement (28), through which the friction clutch can be actuated via a disengaging member (26). According to one aspect of the invention, provision is made to establish a coupling connection in terms of displacement between a measuring member (18) of a measuring arrangement (16) which detects an actual disengagement, and an associated complementary member ( 26) which represents by its position the real clutch, that these two members can be brought into drive engagement under traction force substantially without play, and this by a mutual approach of the measuring member (18) on the one hand and the complementary member (26) on the other hand along a measuring path of the measuring member.

Hydraulically operated release system for pull-type friction clutch

A cylinder (3) and a radially spaced bearing support (5) are mounted concentric with the gear input shaft. Between the inner face (15) of the cylinder and outer face (17) of the bearing support and two axially spaced guide rings (19,21) is a pressure chamber (23). The first guide ring (19) is held locally fixed in the end area of the cylinder facing the friction clutch whilst the second guide ring (21) is set locally fixed on the end area of the bearing support remote from the friction clutch.At least one guide ring is made from anti-friction material. The inner face of the cylinder can be formed by a cylindrical through bore (15) and the outer face of the bearing support runs cylindrical. A sealing ring such as a lip seal is connected in front of the guide ring on its side facing the pressure chamber.

Assembly unit for release device in pull-type friction clutch - has bore in housing containing axially displaceable self locking pin supported on stop mounted on component attached to release bearing.

The release bearing (19) is enclosed by a piston which forms with the housing (3) fixed on the gearbox housing a pressure chamber (15). The housing (13) has parallel to the longitudinal axis (1) of the piston (5) at least one bore (35) contg. a pin (37) supported on a stop (39). The pin is self locking but axially displaceable. The stop (39) is mounted on a component connected to the release bearing. Two bores and two pins can be arranged diametrically opposite each other on the housing. The locking device for the release components has a clamping face on one of the components and an associated clamping element. A stop element (39) on the other of the components entrains the clamping element during relative movement as a result of hydraulic strain on the pressure chamber (15). USE/ADVANTAGE - Assembly unit for vehicle clutches gives simplified cost-effective mfr.

Cylinder, in particular hydraulic, comprising a connection connector in the form of a push-in connection.

Un vérin 1 destiné à des installations hydrauliques, notamment dans des véhicules automobiles, est constitué d'un carter dans lequel coulisse axialement un piston, le vérin étant pourvu d'au moins un raccord de branchement 4 se présentant sous la forme d'une liaison à emmanchement pour au moins une conduite de fluide de pression, qui présente au moins un évasement radial. Aussi bien les pièces du raccord, que le travail nécessaire pour fixer une conduite de fluide de pression au raccord, doivent être réduits au minimum. A cet effet, la conduite de fluide de pression 8 est reçue dans un alésage 6 du raccord de branchement 4, qui présente un évidement 20 sur une partie au moins de sa périphérie, et peut être fixée axialement, par son évasement radial 11, à une extrémité, au moyen d'un élément élastique 9 disposé dans l'évidement 20, et à l'autre extrémité, par un élément d'appui 30 du raccord. A jack 1 intended for hydraulic installations, in particular in motor vehicles, consists of a casing in which a piston slides axially, the jack being provided with at least one branch connector 4 in the form of a connection fitting for at least one pressure fluid line, which has at least one radial flare. Both the fitting parts and the labor required to secure a pressure medium line to the fitting should be kept to a minimum. For this purpose, the pressure fluid line 8 is received in a bore 6 of the branch connector 4, which has a recess 20 on at least part of its periphery, and can be fixed axially, by its radial flare 11, to one end, by means of an elastic element 9 arranged in the recess 20, and at the other end, by a support element 30 of the connector.

HYDRAULICALLY CONTROLLED CLUTCH DEVICE FOR A FRICTION CLUTCH.

Ce dispositif comprend un carter (3) une douille (10) et un piston annulaire (6; 7). Dans ce dispositif, le carter (3) présente une nervure (15), la douille (10) est guidée radialement dans un alésage (16) du carter, fixée axialement par des moyens de butée (20, 22, 19) formés sur la douille par déformation plastique. Exemple d'application: embrayage de véhicule automobile. This device comprises a housing (3) a bush (10) and an annular piston (6; 7). In this device, the housing (3) has a rib (15), the bush (10) is guided radially in a bore (16) of the housing, fixed axially by stop means (20, 22, 19) formed on the bush by plastic deformation. Example of application: motor vehicle clutch.

GRANULATED HYDROPHOBIC ADDITIVE MATERIAL FOR GIPS COMPOSITIONS

FLUID-OPERABLE RELEASE SYSTEM

Display system for measuring instruments - has pointer moving over plate with numbers and mounted on support extended to pass through hole in plate

The display system has a pointer and a measuring arrangement on each side of digit plate. The pointer is fixed to a support which is coupled via a spindle through a hole in the digit plate to the measuring arrangement. The pointer (1) is fixed to the support in the correct position and the support (2) is led through the hole (8) in the digit plate (5). The radial extent of the support is roughly the size of the hole. The pointer is fixed to the support by a ratchet or snap-action device. Several pointers with several measuring arrangements may occupy the same digit plate. The pointer may pivot on the support or may be secured by a cap. ADVANTAGE - Simple combination of a measuring arrangement with a digit plate.

Hydraulic actuating release system for a friction clutch

Actuator for friction clutch in drive train of motor vehicle

The actuator has a pneumatic cylinder (56) mounted in a bell housing (4). A control valve (74) is mounted at least partially outside the bell housing and is accessible from outside when the housing is connected to the engine. The control valve can be removed from outside the bell housing when the housing is connected to the engine. The control valve may include a valve assembly movable between a first control state connecting the pneumatic cylinder to a pneumatic source and a second control state connecting the pneumatic cylinder to a pressure relief opening. The valve assembly is movable between the two states in response to a difference magnitude related to the actual magnitude and the guide magnitude. The valve assembly can move in response to the difference magnitude into a third control state in which the pneumatic cylinder is in equilibrium. The magnitudes can be hydraulic, mechanical or electrical magnitudes.

Patent FR2681393B1

Hydraulic friction clutch actuator having brake fluid and mineral oil resistant seal

The hydraulic friction clutch actuator's seal (1) is manufactured from a brake fluid and mineral oil resistant material, eg. polyester elastomer, and has sealing lips (2, 3) facing an annular chamber (25) formed between piston (31) having a disengaging bearing (33), and annular casing (23). The seal has a pair of scraper lips (4, 5) formed facing towards the piston (31). These scraper lips (4, 5) prevents contaminates entering the chamber (25) and seal the actuator when it is being vacuumed filled.Seal (1) may be made from two elements one having the sealing lips (2, 3) the other having the scraper lips (4, 5). The sealing lip element is made of brake fluid resistant EPDM while the scraper lip element is made of mineral oil resistant NBR or HNBR and may have an integral sheet metal stiffening ring. A support disc for radial guidance may be placed between the two elements of the seal.

Hydraulic release device for a friction clutch pulled and device for mounting the same.

ACTUATION DEVICE FOR FRICTION CLUTCH

Ausrückvorrichtung für eine reibungskupplung eines kraftfahrzeuges mit einer mehrteiligen schiebehülse

Snäppförbindningsarrangemang för en urkopplingsanordning

Dispositivo de uniao por encaixe rapido de um desembreador de embreagem

Dispositif de liaison encliquetable pour une butée de débrayage.

Lastring med vridsaekring

Lastring med vridsäkring

Granuliertes hydrophobes zusatzmaterial für gipszusammensetzungen

Verfahren zur Abtrennung geradkettiger Paraffinkohlenwasserstoffe aus Kohlenwasserstoffgemischen

Verfahren zur Abtrennung gerad kettiger Paraffinkohlenwasserstoffe aus Kohlenwasserstoffgemischen