Abstract: A compression roll housing for an agricultural machine having opposing front and rear ends for connection to parts of the machine, an upper and a lower panel and two opposing side panels. Each of said side panels is provided with at least one substantially vertical elongated aperture for receiving a shaft of a compression roll. Each of the side panels is also provided with a horizontal aperture which extends across the at least one elongated aperture to the front or rear end of the housing.

Abstract: A tractor cab HVAC system has a blower (22) which draws air into the system via air intake means (13) in the roof (14) of the cab (10). Ducting (15) in the roof of the cab directs air drawn in via the intake means down the center of one or more hollow adjacent pillars (16) of the cab to an air filter (18) contained in a housing (20) located between the adjacent pillars. Further ducting (19) extends from the air filter housing to an HVAC unit (11), the HVAC unit processing the air drawn into the system prior to discharging the processed air into the cab. The filter housing (20) is of generally rectangular form and is connected at opposite ends to the two hollow adjacent pillars (16) of the cab via inlet openings (20a) in the housing to allow the passage of intake air from the pillars to the filter (18).

Abstract: A vehicle power braking system has separate left and right brakes (11, 12) operable from a source of pressurized fluid (13) via relay valve means (16) controlled by separate left and right brake operating pedals (14, 15) to provide steering assistance during a turn. The relay valve means delivers a brake operating pressure proportional to the depression of the associated brake operating pedal to separate left and right shift valves (17, 18), each shift valve being connected with its respective operating pedal (14, 15) by a respective pilot line (19, 20) so that when each pedal is operated the associated shift valve is opened by the respective pilot line pressure to supply the proportional pressure from the relay valve means to the respective brake (11, 12).

Abstract: The invention relates to a brake mechanism (1) for agricultural utility vehicles. In the case of the brake mechanism (1), during a brake application an additional quantity of oil is supplied to a brake chamber (150) via an inlet manifold (180), which is fluidically connected to an oil chamber (130). The service brake is formed so that, when the service brake is operated, a first control element (120) is moved towards the brake elements (140, 141) in such a way that a brake chamber (150) is fluidically connected to the inlet manifold (180) and thus ensures an additional oil supply from the oil chamber (130).

Abstract: An exhaust system for an agricultural and/or industrial tractor (10) having an internal combustion engine (11) located in an engine compartment covered by an engine hood (11a). The system includes an exhaust gas treatment unit (16) located inside the engine compartment hood and having a main chamber (18) fed by an inlet pipe (15) which receives exhaust gases from the engine and an outlet pipe (17) which passes treated gases into a final portion (14a,14b) of the exhaust system. The inlet and outlet pipes (15,17) are non-aligned and extending alongside the main chamber (18) in opposite directions to reduce the overall length of the treatment unit. The treatment unit (16) may be installed above the engine (11) with the exhaust gases passing through the unit either generally normal or parallel to the direction of driving (D) of the tractor.

Abstract: A tractor braking system (10) having independent brake circuits (L,R) for each of a left and a right wheel is provided. Each circuit is activated by a respective brake pedal (16,17). The system comprises a releasable locking mechanism (25) to lock the two pedals together and sensors (50) to detect depression of the respective pedals (16,17). In response to a detection of only one pedal being depressed, warning means are provided to indicate to a driver that the pedals are in an unlocked state. A sensing of simultaneous depression of the pedals may be used to indicate that the pedals are in a locked state.

Abstract: A tractor cab filter housing (20) has at least one air intake (20a) through which air is drawn into the housing, an outlet (20c) through which air leaves the housing, a filter element (18) positioned between the inlet and outlet, and an opening access door (21) through which the filter element can be accessed for servicing/replacement. The housing access door (21) includes an integral storage chamber (21f) in which liquids or other items can be stored. The housing door is a hollow plastics molding having an access opening (21d) through which liquid can be introduced into the storage chamber, the opening having a cap (21e) for closing of the opening. A pump (50) may be provided for pumping the liquid out of the storage chamber.

Abstract: The present invention relates to a drive arrangement for vehicles with at least two drivable vehicle axles (V, H). The drive arrangement is particularly suitable for utility vehicles and agricultural tractors. It has at least one first motor (11), which is propulsively connected to a first vehicle axle (H), and a second motor (12), which is propulsively connected to a second vehicle axle (V). At least one of the motors is a de-connectable motor (12), which can be disconnected from the propulsive connection to the associated vehicle axle (V). Regardless of whether the de-connectable motor (12) is propulsively connected to the associated vehicle axle (V) or is propulsively disconnected therefrom, a propulsive connection can be selectively made and broken between the first and the second vehicle axle (V, H).

Abstract: A mechanically operated proportional flow control valve (8) which a valve spool (9) is described, which is moveable between two end limits limiting a regulating range. A device (20, 22) is described for selectively limiting the regulating range of the valve (8). This device can be used to block “locked-in” positions (F1, RH1) of the spool (9) at the end limits of the regulating range. The device includes a locking bar 20 which has locking formations (28, 29) which engage a pin (22) on a lever (11) connected with the spool (9).

Abstract: A utility vehicle (1) comprising a carrier frame (3) mounted above a transaxle (2) is provided. The carrier frame (3) comprises a first carrier frame section (30) and a second carrier frame section (40). A height level of the first carrier frame section (30) differs from a height level of the second carrier frame section (40).

Abstract: A brake assembly comprises a brake ring piston (30) and at least one coupling (33?, 33). The brake ring piston (30) is provided with at least one channel (40, 43) through which a cooling agent can be supplied. The at least one channel leads to a surface of the brake piston which faces the at least one coupling.

Abstract: The invention relates to a transmission synchronisation method and a transmission synchronisation device for at least two transmission units (T1, T2). The synchronisation takes place in that in each case an output revolution speed (n1, n2) of an axle drive shaft arranged in a transmission (T1, T2) is adjusted by means of a first and second adjustment unit (ADU1, ADU2). The synchronisation of the first and second transmissions (T1, T2) takes place by a result value (cal_out) of an arithmetic logic unit (140) being conducted to the second adjustment unit (ADU2) arranged at the second transmission (T2), dependent on the first transmission (T1) and on the reference value (v_set) of a preselection unit (100).

Abstract: A brake assembly is provided for a utility vehicle. After a brake operation, a clearance between a control member and an intermediate part and/or between a brake element and an intermediate part is adjusted by means of a displacement or restoring unit arranged in an intermediate part. Wear, and the associated change of clearance, can be compensated for by means of friction gripping devices, located respectively in the control member and in the brake element.

Abstract: A tractor cab has a floor (12) at least part of which is of a double layer construction having an upper layer (12a) and a lower layer (12b) spaced vertically below the upper layer to define a cavity (29,30) between the layers. The cavity being used for a) the passage of air associated with heating, ventilating, demisting or air conditioning the cab and/or b) the passage of electrical wiring or hydraulic pipes and hoses and/or c) the storage of fluids or other materials or equipment. Part of the floor supports an HVAC unit (11) whose output is directed between the upper and lower layers. The upper layer (12a) includes output apertures (27a, 28a) through which air from the HVAC unit can be discharged or recirculated.

Abstract: A vehicle power braking system has separate left and right brakes (11, 12) operable from a source of pressurised fluid (13) via relay valve means (16) controlled by separate left and right brake operating pedals (14, 15) to provide steering assistance during a turn.

Abstract: A vehicle engine exhaust gas treatment system (10) for use on a tractor comprising storage means (11) for storing urea, injector means (13) for injecting urea into a catalytic converter (21) located in an exhaust (22) of an engine (23), an air duct (29;30) via which air is drawn into the engine, and cooling means for cooling the urea on its passage from the storage means to the injector means, the cooling means comprising a heat exchanger which includes an inner pipe (15; 17) through which the urea flows on its way to the injector means, the inner pipe extending within the air duct (29;30) to cool the urea.

Abstract: Fluid container for a motor vehicle, with a tank (10, 11) and a retaining structure (14, 14a), which is suitable for carrying the tanks (10, 11), characterized in that the retaining structure is designed in such a way that the tank (10, 11) is mounted on it such that it can be displaced. The tank can be displaced in such a way that access to important components is possible without complete dismantling, and, as well as this, the installation and dismantling of the tank can be designed to be easier, faster, and therefore more economical.

Abstract: An upper link for a utility vehicle, in particular for an agricultural tractor having a hydraulic cylinder (34) for adjusting the upper link (32) and at least one fluid tank (36), to which the hydraulic cylinder (34) can be coupled, so that in a coupled condition, hydraulic fluid limited to a pre-determined volume can be exchanged between the hydraulic cylinder (34) and the fluid tank (36), and so that a piston (40) of the hydraulic cylinder (34) can move in floating fashion by a distance (ls) corresponding to the pre-determined volume in the hydraulic cylinder (34). The present invention further includes a front-end as well as to a back-end three-point hitch of a utility vehicle with two pivotally connected lower links and an upper link with such a fluid tank.

Abstract: The invention concerns a vibration-decoupling device for a hydraulic circuit and in particular concerns a vibration-decoupling device for a hydraulic circuit used in an agricultural vehicle. The device has a fluid transfer element (3) able to be connected at one end (4) to a high pressure outlet of a hydraulic pump (1) and to transport fluid expelled from the pump. The another end (5) of the fluid transfer element (3) is moveably connected with a fixed element (11) such as a gear assembly housing so that the fluid can be passed to a hydraulic consumer. A support element (9) is moveably connected with the fixed element (11) and the fluid transfer element (3) and acts so that a force is exerted on the fluid transfer element (3) in one direction while the other end (5) of the fluid transfer element (3) and the fixed element (11) remain securely connected together.

Abstract: The invention relates to a steering system for a utility vehicle, wherein the steering movement is transmitted to the utility vehicle wheels via a steering linkage provided on a steering unit (16, 17; 77). The steering unit (16, 17; 77) is arranged so as to be displaceable along a guide unit (15) which is fixed relative to the utility vehicle. A displacing force upon the steering unit (16, 17; 77) may be provided by a hydraulic cylinder arrangement integrated into the steering unit and/or by a mechanical coupling to a steering wheel for example.