摘要:
A drivetrain for a motor vehicle, in particular a utility vehicle, preferably a city bus, has the following components: a primary drive unit; a powershift transmission which is arranged downstream of the primary drive unit in the direction of the power flow; a starting element which is arranged in the power flow between the primary drive unit and the powershift transmission and which comprises at least one clutch; an electric machine. According to the invention, the electric machine is arranged in the power flow between the starting element and the powershift transmission.
摘要:
The invention relates to a torque transmission device comprising a torque converter, a pump impeller, a turbine wheel and optionally a stator. The inventive device also comprises a converter bypass coupling having a flange (19) which is connected to the housing (6) or the pump impeller (10) in a positively engaged manner. Said flange is arranged between the pump impeller (10) and the turbine wheel (9) and can be connected to the turbine wheel (9) in a frictionally engaged manner by means of a first coupling (27).
摘要:
In a motor vehicle transmission a first rotary member (43) is connected to a second rotary member (47) by a variable resistance coupling (40). The variable resistance coupling (40) comprises a first viscous coupling (45) connected in series with a second viscous coupling (48) by a common outer housing (49). A selector clutch (50) can connect the outer housing (49) to the second rotary member (47) to render the second viscous coupling (48) ineffective and give a high resistance mode for the variable resistance coupling compared to the low resistance mode when both viscous couplings are operational. The variable resistance coupling (40) is used to control the centre differential (17) in a four wheel drive vehicle. In an alternative arrangement (fig.3, not shown) the variable resistance coupling is in the drive from an intermediate reduction drive driven by a conventional front wheel drive engine and transaxle and connects the transaxle to the rear wheels.
摘要:
A torque transmission device of a four-wheel drive vehicle having a pair of drive shafts (100,200) includes a hydraulic pump (3) for transmitting torque to both drive shafts through a variable oil pressure generated therein according to the difference in rotational speed between both drive shafts, and a multiple disc clutch (4) for transmitting torque to both drive shafts by a frictional coupling power. The hydraulic pump has a casing (30) and a rotor (31) housed therein. The casing is rotated by one of the drive shafts (100). The rotor is rotated by the other drive shaft (200) through a transmitting member (7), a cam mechanism (5) and a rotary sleeve (2). The transmitting member has a clutch operating portion for operating the clutch. When the transmitted torque exceeds a predetermined level, the cam mechanism (5) is adapted to move the transmitting member (7) to operate the multiple disc clutch (4) with no intermediary of the casing (30).
摘要:
A viscous clutch assembly adapted for installation in a torque transmission system for effecting a drive connection between a pair of rotary members (25, 26) coaxially arranged for relative rotation. The viscous clutch assembly includes a viscous coupling (10a) arranged for generating a viscous resistance force in response to relative rotation between the rotary members, a first cam mechanism (10c) cooperable with the viscous coupling (10a) for converting the viscous resistance force into a thrust force, a friction disc clutch (10b) arranged to be brought into engagement when applied the thrust force from the first cam mechanism for establishing the drive connection between the rotary members, and a second cam mechanism (10d) cooperable with the viscous coupling (10a) for increasing and decreasing the viscous resistance force in response to a difference in torque between the rotary members.
摘要:
A torsional damping mechanism (22) adapted to be disposed between an engine (10) and a transmission (12) operative to drive ground wheels (16) of a vehicle. The mechanism includes a viscous damping device (30), an idle rattle assembly (32), a torque transmitting torsion spring bar (28) disposed in series with the idle rattle assembly and in parallel with the viscous damping device, and a mechanical friction assembly for connecting the mechanism to the engine. Mechanism (22) is structurally configured to have a low inertia. The viscous damping device includes lost motion means (48k, 50c) which allows attenuation of low amplitude torsionals without damping.
摘要:
Zur Dämpfung von Drehschwingungen im Antriebsstrang von Kraftfahrzeugen wird vorgeschlagen, innerhalb der Fahrzeugkupplung, insbesondere innerhalb der Schwungscheibe (6) der Fahrzeugkupptung, eine aus ineinandergreifenden Scheibensätzen (32, 52) bestehende und mit viskoser Flüssigkeit gefüllte Flüssigkeitskupplung (30,50) vorzusehen.
摘要:
A differential drive arrangement distributes driving torque solely by way of viscous fluid coupling means. in one arrangement, in a motor vehicle drive transmission, a crown wheel is mounted co-axially on the housing of a coupling means from which nearside and offside half-shafts extend driven by separate sets of 'inner' annular plates interleaved with those of an 'outer' set of annular plates driven by the housing. In another arrangement, two separate viscous fluid couplings are used, the housings being driven by a common crown wheel. in each case, there is no conventional differential gear. The differential drive arrangement may be for transient four-wheel-drive where one pair of road wheels is positively driven by a conventional differential gear; or the differential drive arrangement may be for 'continuous' duty.
摘要:
Die Überbrückungskupplung (13,14) ist auf der der Strömungskupplung (5) gegenüberliegenden Seite des Getriebes (3) angeordnet und der Primärteil der Überbrükkungskupplung (13,14) ist mit dem Primärteil (8) der Strömungskupplung durch eine Welle (12) verbunden, die das hohlgebohrte Ritzel (10) des Getriebes (3) durchgreift, welches mit dem Sekundärteil (9) der Strömungskupplung (5) und dem Sekundärteil der Überbrückungskupplung fest verbunden ist.