Abstract:
A pressure pulse generator includes a cylinder (2), a body (9) connected to the cylinder (2), a first channel (15) extending from the cylinder (2) to a pressure sink LP, a pressure fluid circuit having a second channel (4) extending to the cylinder (2) from a pressure source HP, an actuator piston (3) being displaceable arranged, a controllable first valve body (5) arranged in the second channel (4) to open or close a pressure fluid flow in the second channel (4), an electro element (7) to control the valve body (5), a second valve body (8) arranged at or to the second channel (4) for opening or closing of the channel (4). The second valve body (8) is an element rigidly connected to the actuator piston (3).
Abstract:
An internal combustion engine (1) having a crankshaft (2), having at least one camshaft (12) for actuating gas exchange valves (15, 104), and having a synchronous drive (9) which transmits the rotation of the crankshaft (2) to the camshaft (12), wherein the crankshaft (2) is arranged predominantly in the first chamber (6) which is separated in a fluid-tight manner from a second chamber (8) in which the synchronous drive (9) is arranged, wherein the camshaft (12) is also arranged in the second chamber (8).
Abstract:
A pressure pulse generator includes a cylinder (2), a body (9) connected to the cylinder (2), a first channel (15) extending from the cylinder (2) to a pressure sink LP, a pressure fluid circuit having a second channel (4) extending to the cylinder (2) from a pressure source HP, an actuator piston (3) being displaceable arranged, a controllable first valve body (5) arranged in the second channel (4) to open or close a pressure fluid flow in the second channel (4), an electro element (7) to control the valve body (5), a second valve body (8) arranged at or to the second channel (4) for opening or closing of the channel (4). The second valve body (8) is an element rigidly connected to the actuator piston (3).
Abstract:
A variable compression ratio internal engine including at least two block portions connected to each other and moveable relative to each other so that the compression ratio can be varied. The engine includes an input gear for inputting a rotation output from an output gear to the cam shaft. The input gear and a rotation transmission shaft are constituted to be able to slide relative to each other or the output gear and the rotation transmission shaft are constituted to be able to slide relative to each other in the direction of the movement of the one block portion relative to the other block portion such that the meshing between the input gear and the cam shaft side gear or the meshing between the output gear and the crank shaft side gear is maintained when the one block portion is moved relative to the other block portion.
Abstract:
A chain case structure of an engine, wherein, when a chain case is viewed in the crankshaft direction, both side portions of a mount bracket unit in the width direction extend to the left edge portion or the right edge portion of the chain case and the upper edge portion of the chain case, and a fastening portion to an engine main body is provided on the lower portion of the mount bracket portion. A cylinder portion of a hydraulic control valve of a variable valve mechanism is disposed below the fastening portion while the outer peripheral surface of the cylinder portion is mutually coupled to the mount bracket portion. Reinforcement ribs extend downward from the bottom of the mount bracket, across the cylinder portion.
Abstract:
A system for an engine drive that engages a timing band with a camshaft and a crankshaft is provided. The system further includes a coupling device that couples the camshaft to another camshaft that is not engaged with the timing band. The coupling device and the camshafts are in such a configuration that the camshafts rotate in opposing directions.
Abstract:
An internal combustion engine (1) having a crankshaft (2), having at least one camshaft (12) for actuating gas exchange valves (15, 104), and having a synchronous drive (9) which transmits the rotation of the crankshaft (2) to the camshaft (12), wherein the crankshaft (2) is arranged predominantly in the first chamber (6) which is separated in a fluid-tight manner from a second chamber (8) in which the synchronous drive (9) is arranged, wherein the camshaft (12) is also arranged in the second chamber (8).
Abstract:
A compliant gear assembly for a gear train of an internal combustion engine includes a hub subassembly having a first hub component and a second hub component. The first hub component defines a first axis, and the compliant gear assembly includes a gear ring rotatable relative to the hub subassembly and defining a gear ring axis of rotation. The second hub component is movable relative to the first hub component between a first stop position and a second stop position. A compliance mechanism is coupled between the first hub component and the second hub component and biases the second hub component toward the first stop position. Translating the second hub component relative to the first hub component in a direction normal to the first axis attenuates torque spikes induced for example via fuel injector actuation and/or cylinder firing in an engine gear train employing the compliant gear assembly.
Abstract:
In a timing chain driving system in which the speed of a driving sprocket fluctuates cyclically, the tooth pitch of a driven sprocket from which a tension span of the chain travels toward the driving sprocket varies cyclically around the circumference of the driven sprocket so that the tooth pitch at the point at which the timing chain disengages from the driven sprocket is at a minimum when the rotational speed of the driving sprocket is maximum, moderating fluctuations in chain tension. A similar effect can be achieved in the case of a driving sprocket having a cyclically varying tooth pitch by arranging the driving sprocket so that its tooth pitch is maximum at the point at which it is engaged by the chain when its rotational speed is maximum.
Abstract:
A sprocket (3A, 3B) is fixed onto a crank shaft (2) projecting outward from a cylinder block (1) of an internal combustion engine (100). A timing chain (7A, 7B) is looped around the sprocket (3A, 3B). A slippage prevention mechanism (10) which prevents slippage of the timing chain (7A, 7B) with respect to the sprocket (3A, 3B) comprises an arm (10C) extending from a base portion (10A) fixed to the cylinder block. A slippage prevention rail (10B) in the form of an arc-shaped recess is formed on the arm (10C) so as to face the engaging part between the sprocket (3A, 3B) and the timing chain (7A, 7B) with a clearance smaller than the height of a tooth of the sprocket (3A, 3B) therebetween. The slippage prevention rail (10B) thus constructed does not interfere with other members fixed onto the crank shaft (2).