Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Load children
F01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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F01L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
Load children
1/00
Valve-gear or valve arrangements, e.g. lift-valve gear
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F01L1/34
characterised by the provision of means for changing the timing of the valves without changing the duration of opening; and without affecting the magnitude of the valve lift
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F01L1/344
changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
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F01L1/34403
using helically teethed sleeve or gear moving axially between crankshaft and camshaft
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F01L1/34406
the helically teethed sleeve being located in the camshaft driving pulley
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F01L1/34406

CAM PHASING SYSTEMS AND METHODS
20180209310 · 2018-07-26 ·

Cam phasing systems and methods are provided. In particular, a cam phasing system is provided that includes a reduced number of components when compared to current mechanical cam phasing systems. The cam phasing system includes a helix locking design that is configured to frictionally lock an helix rod during cam torque pulses.

Multi-positional camshaft phaser with two one-way wedge clutches and spring actuator
09869214 · 2018-01-16 · ·

A camshaft phaser including a gear arranged to receive torque from an engine, a housing non-rotatably connected to the gear and arranged to connect to a camshaft and a phase adjustment assembly including first gear teeth, second gear teeth and a hub arranged to non-rotatably connect to the camshaft and including third gear teeth and a displacement assembly arranged to for an advance mode, displace the hub in a first axial direction so that the third gear teeth non-rotatably connect to the second gear teeth and the hub is rotatable with respect to the housing in a first circumferential direction and for a retard mode, displace the hub in a second axial direction, opposite the first axial direction, so that the third gear teeth non-rotatably connect to the first gear teeth and the hub is rotatable with respect to the housing in a second circumferential direction.

MULTI-POSITIONAL CAMSHAFT PHASER WITH TWO ONE-WAY WEDGE CLUTCHES AND SPRING ACTUATOR
20170175595 · 2017-06-22 ·

A camshaft phaser including a gear arranged to receive torque from an engine, a housing non-rotatably connected to the gear and arranged to connect to a camshaft and a phase adjustment assembly including first gear teeth, second gear teeth and a hub arranged to non-rotatably connect to the camshaft and including third gear teeth and a displacement assembly arranged to for an advance mode, displace the hub in a first axial direction so that the third gear teeth non-rotatably connect to the second gear teeth and the hub is rotatable with respect to the housing in a first circumferential direction and for a retard mode, displace the hub in a second axial direction, opposite the first axial direction, so that the third gear teeth non-rotatably connect to the first gear teeth and the hub is rotatable with respect to the housing in a second circumferential direction.