Electrically-actuated variable camshaft timing phaser with removable fixture
AssigneeBorgWarner Inc.
InventorsChad McCloy, Mark Wigsten
Life of this patent
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Abstract
An electrically-actuated variable camshaft timing (VCT) phaser is employed for use with an internal combustion engine (ICE). The electrically-actuated VCT phaser includes a gear set assembly and a fixture. The gear set assembly has an input gear and an output gear, among other possible components. The input gear receives rotational drive input from an engine crankshaft, and the output gear transmits rotational drive output to an engine camshaft. The fixture is secured in the gear set assembly. Amid installation of the electrically-actuated VCT phaser on the ICE, the fixture constrains rotational movement of the gear set assembly. After installation, the fixture can be removed from the gear set assembly.
Claims13
An electrically-actuated variable camshaft timing (VCT) phaser, comprising:
- a gear set assembly comprising:
- an input component that receives rotational drive input from an engine crankshaft,
- an output component that transmits rotational drive output to an engine camshaft, and
- at least one intermediate component situated in a path of rotational transmission between the input component and the output component;
- and
- a pin movably secured in the gear set assembly so as to constrain rotational movement of the gear set assembly amid installation of the electrically-actuated VCT phaser on an internal combustion engine,
- wherein, when a center bolt lacks installation at the electrically-actuated VCT phaser, the pin in direct movable securement with a first intermediate component of the at least one intermediate component, and
- wherein, when the center bolt is installed at the electrically-actuated VCT phaser, the pin is displaced so as to release the constrained rotational movement of the gear set assembly.
An electrically-actuated variable camshaft timing (VCT) phaser, comprising:
- a planetary gear set comprising a sun gear including a slot, and an inner plate including an opening;
- and
- a pin removably received in the slot of the sun gear and at least partially received in the opening of the inner plate so as to constrain rotational movement of the planetary gear set.
Dependencies are inferred from the claim text.