Abstract:
Angular motion driving mechanism comprising, mounted on a supporting structure (SUP), a gear wheel (GW) for intermittent rotational movement in clockwise and counter-clockwise directions within an arc bounded by first and second angular positions (a1 and a2, respectively) of the gear wheel (GW) with respect to the supporting structure (SUP), a driving gear (DG) being drivingly coupled to the drive motor (DM) and to the gear wheel (GW) imparting rotational movement to the gear wheel (GW) from said first to said second position (a1 to a2, respectively) in an active mode of the drive motor (DM), a coiled torsion return spring (RS), which is flexed against its bias at rotational movement of the gear wheel (GW) from the first to the second angular position a1 to a2 in the active mode of the drive motor (DM), and which relaxes in the non-active mode of the drive motor (DM) by urging the gear wheel (GW) to return from the second to the first angular position (a2 to a1, respectively). To avoid damaging peak collision impact when stopping the gear wheel in its return swing at its first angular position a1, the angular motion driving mechanism comprises a flexible end stop being constituted by a member (BT1) structurally fixated to the gear wheel (GW) and in said first position a1 engaging with an first embossement (E1) of said supporting structure (SUP), said member (BT1) being flexed at contact collision with said first embossement (E1).
Abstract:
A centrifugal governor of a construction in which a shifter (21) abutting against a governor sleeve (10) is installed on a governor lever, wherein the shifter is in the form of a set of juxtaposed roller members (21a) rotatably attached to a shifter shaft (23) transversely held on the governor lever in a direction orthogonal to the direction of the axis of the governor sleeve. The shifter shaft is used in common as a pivot shaft for an Angleich lever (31) having a positive Angleich function and/or a reverse Angleich function. An Angleich spring mechanism (36 or 37) is disposed at a position on the opposite side of the Angleich lever to the governor sleeve. When the Angleich lever abuts against the Angleich mechanism with the portion on the opposite side of the shifter shaft to the governor shaft, such abutment causes the positive Angleich function to develop, and when the Angleich lever abuts against the Angleich mechanism with the portion present between the shifter shaft and the governor shaft, such abutment causes the reverse Angleich function to develop.
Abstract:
An electronic speed regulating device for a diesel engine includes an oil-regulating element (1) of an injection pump, a pin roll (2), a control module, a motor (3) and its rotating shaft (4), a stem (5) and a speed-regulating lever (7) etc. The regulator omits a mechanical centrifugal speed governor and controls the motor (3) through a load signal by using the control module, and transfers the angular displacement of the motor (3) to the angular displacement of the oil-regulating element (1) of the injection pump by a series of driving devices. Compared with the conventional mechanical centrifugal speed governor, the motion piece of the speed regulator has lighter weight, smaller inertia and more sensitive reaction. The speed-regulating lever (7) adopting certain lever ratio refines the step displacement of the stepping motor (3) and sends it to the oil-regulating element (1) of the injection pump, which can regulate the oil supply quickly and accurately and reduce the fluctuation ratio of the diesel rotary speed.
Abstract:
A fuel injection pump, comprising three sub-mechanism parts; a lower mechanism part (A), a head mechanism part (B), and a governor mechanism part (C), wherein, when the governor mechanism part (C) is assembled into the combination of the lower mechanism part (A) and head mechanism part (B) after the lower mechanism part (A) and head mechanism part (B) are assembled with each other, a governor link (27) installed extendedly from the governor mechanism part (C) is inserted into both mechanism parts (A, B) and, when a hook groove (27a) at the tip of the governor link (27) is engaged with a lock pin (21a) in a control slider (21) for the rotation of a plunger (7) disposed inside the lower mechanism part (A) and head mechanism part (B), first, with a notch surface (33b) of a lift pin (33) facing upward, the governor link (27) is put on the notch surface (33b) so as to position the hook groove (27a) under the lock pin (21a), and then the lift pin (33) is rotated to face the notch surface (33b) downward, and the governor link (27) is swung upward by a cam part (33a) so as to engage the hook groove (27a) with the lock pin (21a).
Abstract:
An internal combustion engine includes a method for operating including, determining, using an accelerator pedal position sensor, an operator request for power and determining an engine operating point based upon the operator request for power. A motored-cylinder temperature is determined based upon the engine operating point, and a knock-limited combustion phasing point is determined based upon the motored-cylinder temperature and the engine operating point. Engine operating parameters associated with achieving the knock-limited combustion phasing point are selected. Operation includes controlling, by a controller, engine control states in response to the engine operating parameters associated with achieving the knock-limited combustion phasing point and the operator request for power.