Unit trigger actuator
First Claim
1. An actuator for actuating a linearly translatable member to move between a rest position and a translated position, comprising:
- a trigger being electrically actuatable;
a hydraulic cartridge having a needle and a piston, the needle being operably coupled to the trigger and piston being operably fluidly in communication with a source of high pressure actuation fluid, translation of the needle effected by the trigger acting to selectively port high pressure actuation fluid to the piston and to vent actuation fluid from the piston;
a pivot element operably coupled to the piston and to the engine valve, the pivot element amplifying motion imparted to the pivot element by translatory motion of the piston at the linearly translatable member; and
a lash adjuster operably coupled to the pivot element for decoupling the hydraulic cartridge from lash inherent in a plurality of components and assembly of a linearly translation arrangement.
11 Assignments
0 Petitions
Accused Products
Abstract
An actuator for actuating a linearly translatable member, such as an engine valve includes a unit trigger actuator, the unit trigger actuator having a trigger being electrically actuatable, a hydraulic cartridge having a selectively translatable component and being operably coupled to the trigger for receiving actuation commands therefrom, the unit trigger actuator being an open loop system. A pivot element is operably coupled to the translatable component and to the engine valve, the pivot element amplifying motion imparted to the pivot element by translatory motion of the piston at the engine valve. A lash adjuster is operably coupled to the pivot element for decoupling the hydraulic cartridge from lash inherent in a plurality of components and assembly of an engine valve arrangement. A method of actuation is further included.
11 Citations
48 Claims
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1. An actuator for actuating a linearly translatable member to move between a rest position and a translated position, comprising:
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a trigger being electrically actuatable;
a hydraulic cartridge having a needle and a piston, the needle being operably coupled to the trigger and piston being operably fluidly in communication with a source of high pressure actuation fluid, translation of the needle effected by the trigger acting to selectively port high pressure actuation fluid to the piston and to vent actuation fluid from the piston;
a pivot element operably coupled to the piston and to the engine valve, the pivot element amplifying motion imparted to the pivot element by translatory motion of the piston at the linearly translatable member; and
a lash adjuster operably coupled to the pivot element for decoupling the hydraulic cartridge from lash inherent in a plurality of components and assembly of a linearly translation arrangement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12)
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11. An actuator for actuating an engine valve, comprising:
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a trigger being electrically actuatable;
a hydraulic actuation cartridge being operably coupled to the trigger having a translatable component being translatable responsive to a trigger input;
a pivot element operably coupled to the cartridge and to the engine valve, the pivot element amplifying motion imparted to the pivot element by translatory motion of the translatable component at the engine valve; and
a lash adjuster operably coupled to the pivot element for decoupling the hydraulic actuation cartridge from lash inherent in a plurality of components and assembly of an engine valve arrangement. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. An actuator for actuating an engine valve, comprising:
a unit trigger actuator, the unit trigger actuator having;
a trigger being electrically actuatable;
a hydraulic cartridge having a selectively translatable component and being operably coupled to the trigger for receiving actuation commands therefrom;
the unit trigger actuator being an open loop system;
a pivot element operably coupled to the translatable component and to the engine valve, the pivot element amplifying motion imparted to the pivot element by translatory motion of the piston at the engine valve; and
a lash adjuster operably coupled to the pivot element for decoupling the hydraulic cartridge from lash inherent in a plurality of components and assembly of an engine valve arrangement. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of actuating an engine valve, comprising:
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electrically actuating a unit trigger;
a hydraulic cartridge having a selectively translatable component and being operably coupling a hydraulic cartridge to the trigger for receiving actuation commands therefrom;
selectively translating a hydraulic cartridge component;
operating the unit trigger actuator in an open loop mode;
operably coupling a pivot element to the translatable component and to the engine. valve;
the pivot element amplifying motion imparted to the pivot element by translatory motion of the piston at the engine valve; and
decoupling the hydraulic cartridge from lash inherent in a plurality of components and assembly of an engine valve arrangement. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A method of actuating a linearly translatable member to move between a rest position and a translated position, comprising:
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electrically actuating a unit trigger;
a hydraulic cartridge having a selectively translatable component and being operably coupling a hydraulic cartridge to the trigger for receiving actuation commands therefrom;
selectively translating a hydraulic cartridge component;
operating the unit trigger actuator in an open loop mode;
operably coupling a pivot element to the translatable component and to the linearly translatable member;
the pivot element amplifying motion imparted to the pivot element by translatory motion of the piston at the linearly translatable member; and
decoupling the hydraulic cartridge from lash inherent in a plurality of components and assembly of a linearly translation arrangement. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
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Specification