摘要:
Die Erfindung bezieht sich auf einen Steuertrieb für einen Verbrennungsmotor mit einer Kurbelwelle, mindestens einer Nockenwelle, wenigstens zwei Rädern, von denen ein Rad mit der Kurbelwelle verbunden ist und von denen ein Rad mit der Nockenwelle verbunden ist, die Teil eines Getriebes sind, über welches das erste Rad und das mindestens eine zweite Rad miteinander verbunden sind. Es ist ein Elektromotor mit einer Steuereinrichtung vorgesehen, der versetzt von der Kurbelwelle und der mindestens einen Nockenwelle, sowie versetzt zu dem zugehörigen ersten Rad und dem zugehörigen zweiten Rad, mittels eines Zwischenrades als Teil des Getriebes mit den Rädern in Verbindung steht. Der Elektromotor weist eine Generatorwelle auf, an welcher mindestens ein Ausgleichsgewicht für einen Massenausgleich angeordnet ist, wodurch freie Massenkräfte erster oder zweiter Ordnung im Steuertrieb kompensierbar sind.
摘要:
This balancing shaft assembly (A) comprises a balancing shaft (1) rotatable with respect to a housing (H) around a central rotation axis (X-X'), at least one bearing (B) allowing the rotation of the balancing shaft (1) with respect to the housing (H), each bearing (B) comprising an inner ring (2) coupled in rotation to the balancing shaft (1), an outer ring (6) fixed with respect to the housing (H), and rolling elements (8). The at least one bearing (B) is mounted on a bearing area (3) of the balancing shaft (1). The inner ring (2) is divided into a first portion formed by semicylindrical body (11) mounted against the bearing area (3) of the balancing shaft (1), and a second portion formed by a half ring (15) mounted around a semicylindrical portion (302) of the bearing area (3) of the balancing shaft (1), the inner ring (2) having an outer raceway surface (2A) formed by a semicylindrical surface (9) of the semicylindrical body (11) and by a semicylindrical surface (13) of the half ring (15). The half ring (15) has an outer radius (R15) equal to the outer radius (R11) of the half cylindrical body (11).
摘要:
The invention relates to a drive (1) comprising a piston machine in particular in the form of a combustion engine, said drive having a device for efficiently reducing alternating torques produced by rotational nonuniformities on the basis of the engine speed- and torque pulsation of the combustion engine and the mass forces created by the reciprocating motion of the piston and the connecting rod during operation. For this purpose, a crankshaft (2) of the combustion engine carries a sun wheel (3) of a planetary gearbox (4). In a per se known manner, the planetary gearbox (4) also comprises three planet gears (5, 6, 7) and a ring gear (8). In the embodiment shown, the planet gear (5) is used to drive a balancing shaft (9) which can be driven thereby in the opposite direction. In order to be able to drive, in addition to this balancing shaft (9), also another balancing shaft (10) in the same direction of rotation as the crankshaft (2), the ring gear (8) has, in addition to inner teeth (11) which engage with the planet gears (5, 6, 7), outer teeth (12) for a toothed wheel (13) which drives the second balancing shaft (10), wherein the number of teeth of the inner toothing (11) and of the outer toothing (12) match.
摘要:
A balance system for a single cylinder engine (10) is described. The single cylinder engine (10) generates forces, that if left unbalanced, cause significant vibrations or movement to the single cylinder engine (10) and devices driven by the single cylinder engine (10). The balance shaft includes a primary balance shaft (21) for a first type of forces and at least one secondary balance shaft (23) for a second type of forces. The secondary balance shaft (23) is driven directly by the primary balance shaft (21). In one example, only one secondary balance shaft (23) may be used, which may leave some forces unbalanced but is more space and cost effective. In another example, two or more secondary balance shafts may be included in a drive chain such that one secondary balance shaft drive the next secondary balance shaft.
摘要:
In an engine (internal combustion engine), a crankcase is provided with a fastening area that surrounds the opening and contacts the oil pan, a balance shaft housing is disposed in the crankcase to surround the opening, and four housing side fastening sections are provided to the crankcase to fasten the crankcase and the balance shaft housing. The fastening section of the four housing side fastening sections in a first axial direction side of a balance shaft is disposed on the inside of the fastening area, and the fastening section of the four housing side fastening sections in a second axial direction side of the balance shaft is disposed on the outside of the fastening area.
摘要:
A rolling bearing of a balancer shaft device is positioned on an imaginary circle concentric with an axis of a shaft portion of a balancer shaft as viewed in a radial cross-section, and includes a cylindrical portion which covers the shaft portion. An outer circumferential surface of the cylindrical portion defines an inner ring raceway surface of an inner ring member on which a rolling element of the rolling bearing rolls. A part of the shaft portion of the balancer shaft, at a position on which the rolling bearing is disposed, has a cutout formed at a portion which does not contribute to offsetting of rotational vibration of a crankshaft.