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US 2006/0185633 A1Published application
Electromechanical valve actuator
AssigneeVisteon Global Technologies, Inc.
InventorsHa Chung, Mark Hopper, John Norton, Shawn Swales
Life of this patent
Estimating the term…
Abstract
An electromechanical valve actuator with an armature stem guidance system that ensures that the armature stem stays aligned with the valve stem during operation. The stem guidance system may also allow for adjustment of the lash gap during assembly.
Claims18
An electromechanical valve actuator comprising:
- an armature stem;
- a valve stem;
- a lash cap between said armature stem and said valve stem, said lash cap having a first surface defining a cavity for receiving said armature stem.
An electromechanical valve actuator comprising:
- a spring assembly having an armature spring retainer and a valve spring retainer;
- an armature stem coupled to said armature spring retainer;
- a valve stem coupled to said valve spring retainer and wherein said valve spring retainer defines a cavity for receiving said armature stem;
- and
- a lash cap located within said cavity and between said armature stem and said valve stem.
2 more elements
An electromechanical valve actuator comprising:
- a spring assembly including an armature spring retainer, an armature spring, a valve spring and a valve spring retainer;
- an armature stem coupled to said armature spring retainer;
- a valve stem coupled to said valve spring retainer;
- and
- a lash cap located between said armature stem and said valve stem and having a thickness and wherein one of said valve spring retainer and said lash cap defines a cavity for receiving said armature stem, said electromechanical valve actuator assembled by the process of:
- determining tolerance variations of the electromechanical valve actuator;
- selecting said lash cap having a thickness;
- and
- inserting said lash cap between said armature stem and said valve stem.
6 more elements
Dependencies are inferred from the claim text.