摘要:
The invention relates to a cover plate (1) for obturating a crankcase towards the bottom thereof. Said cover plate comprises a balancing shaft (6) mounted on said cover plate (1). A first pump (4) is mounted on the power take-off end (KS) of the balancing shaft (6) and a second pump (5) is mounted on the power take-off opposite end (KGS) of the balancing shaft (6).
摘要:
A transmission ( 2 ) connected to the rear end of a transversely-mounted, four-cylinder diesel engine ( 1 ) includes a front-wheel differential gear box ( 12 ) extending toward the rear of the vehicle. A supply pump ( 14 ) is mounted on the vehicle front side of the front end part of the engine ( 1 ). High-pressure fuel from the supply pump ( 14 ) is fed to fuel injection valves ( 13 ) via a common rail. The supply pump ( 14 ) includes a single plunger ( 30 ) that is reciprocally moved by a cam ( 32 ) driven by a crankshaft of the engine. The plunger ( 30 ) is reciprocally moved to produce inertial forces opposite in phase to second-order inertial forces of the pistons and associated parts of the engine ( 1 ), which effectively reduces pitching vibrations due to reciprocal second-order inertial forces of the pistons and associated parts of the engine and in turn reduces booming noise.
摘要:
The aim of the invention is to obtain an efficient noise reduction on a balance shaft for a reciprocating piston engine provided with at least one balance weight (22), which is elastically connected to the balance shaft (21) by means of an elastic element (25), preferably made of plastic whose elasticity is gradually changing in a peripheral direction. An intermediary solid part (26) comprises a fixed connection (15) to the balance shaft (11) in the peripheral direction, the elastic part (31) being adjacent to the balance weight (22)
摘要:
Stirlingmotor (1) mit vier jeweils um 90° zueinander verdreht angeordneten Arbeitskolben (3), mit einem Planetengetriebe (4) zur Umsetzung der Linearbewegung der Arbeitskolben (3) in eine Rotationsbewegung einer gemeinsamen Abtriebswelle (5), wobei die Schwerpunkte der Arbeitskolben (3) in einer Ebene senkrecht zur Drehachse der Abtriebswelle (5) angeordnet sind, und die Arbeitskolben (3) zur Geradeführung an einer als Planetenrad ausgebildeten außenverzahnten Kurbel (11) drehbar gelagert sind, die in zumindest einem innenverzahnten Hohlrad (13, 13') umläuft, und zum vollständigen Ausgleich freier Massenkräfte und - momente lediglich der gemeinsamen Abtriebswelle (5) zumindest zwei Ausgleichsmassen (14, 14') derart zugeordnet sind, dass die Arbeitskolben (3) und die mit den Arbeitskolben (3) mitbewegten Getriebeteile einen gemeinsamen, in der Achse der Abtriebswelle (5) liegenden Schwerpunkt aufweisen; sowie Biomassefeuerungsanlage (20) mit einer Brennkammer (19), wobei in der Brennkammer (19) ein erfindungsgemäßer Stirlingmotor (1) vorgesehen ist.
摘要:
An internal combustion engine includes a balancer housing (3), a balancer shaft (4) having an eccentric weight portion (4A) and disposed within the balancer housing (3) so as to be parallel with and rotatable in timed relation with a crankshaft (2), and a power transmitting mechanism (10) that transmits rotation of the crankshaft (2) to the balancer shaft (4), wherein the balancer shaft (4) has an end portion (6) protruding outward of the balancer housing (3), and wherein the end portion (6) of the balancer shaft (4) is partially cut to have a flattened section (8) that constitutes a device for positioning the balancer shaft (4) in a predetermined rotational position. A method of assembling an internal combustion engine with a balancer shaft (4) is also provided.
摘要:
A V-type internal combustion engine, having (2n+1) (n; natural number) cylinders, is provided with a crank shaft having n common crank pins Kc to which a pair of pistons in two banks are both connected and one stand-alone crank pin to which the remaining one piston only is connected. The common crank pins Kc are arranged at an equal phase, with a bank angle THETA set to satisfy the expression THETA = cos (1/(2n)). The stand-alone crank pin is disposed, when the remaining piston belongs to a bank on an advance side in a crank shaft rotation direction, on a lag side in a crank shaft rotation direction with an angle of (180- THETA ) degrees away from a common crank pin Kc, the masses M of reciprocating-motion portions such as pistons in all cylinders are set equal, and the crank shaft is provided with a balance weight WB that generates a balancing force having a magnitude of kMr omega in a ( alpha +180)-degree direction, when k = 2ROOT {[1/2 2ROOT (1-1/4n )] + (n-1/4n) } alpha =sin [1/2 2ROOT (1-1/4n )/k], where alpha : rotation-direction angle from common crank pin Kc M: mass of each reciprocating-motion portion r: crank radius omega : angular speed of crank shaft. Accordingly, an odd-cylinder V-type internal combustion engine is provided that prevents a primary vibration generation to be caused by a primary inertia force without increases in weight and size of the internal combustion engine.
摘要:
Balance shaft assemblies are used in internal combustion engines to dampen primary and second order inertia forces. Known balance shaft assemblies typically require precision manufacturing and a rigid frame or housing. A balance shaft assembly (1) in accordance with this invention provides a low cost and less complex solution to engine balancing. The balance shaft assembly (1) includes an elongate housing (2) having a front end and a rear end, a balance shaft (5) which is rotatably supported between a front end bearing (6), a rear end bearing (7) and an intermediate bearing (12)in the housing (2). The housing (2) is transversely flexible relative to the balance shaft (5) to accommodate misalignment of the intermediate bearing (12) relative to the front and rear end bearings (6, 7). Consequently, the balance shaft assembly (1) can be less complicated and manufactured at a lower cost than known balance shaft assemblies.