Camshaft carrier for supporting a camshaft, an engine system, and a method of assembly
AssigneeCummins Inc.
InventorXiang Guo
Life of this patent
Estimating the term…
Abstract
The application relates to a camshaft carrier for supporting a camshaft, an engine system, and a method of assembly. An engine system includes a cylinder block, a cylinder head, a camshaft carrier, a camshaft, and a fuel injector assembly. The cylinder head is coupled to the cylinder block and defines at least one of an inlet passage or an exhaust passage therein. The camshaft carrier is coupled to the cylinder head and the camshaft is coupled to the camshaft carrier. The fuel injector assembly is coupled to the camshaft carrier and extends through a carrier sidewall of the camshaft carrier.
Claims19
An engine system, comprising:
- a cylinder block;
- a cylinder head coupled to the cylinder block and defining at least one of an inlet passage or an exhaust passage therein;
- a camshaft carrier coupled to the cylinder head;
- a camshaft coupled to the camshaft carrier;
- a fuel injector assembly coupled to the camshaft carrier, a portion of the fuel injector assembly extending through a carrier sidewall of the camshaft carrier;
- and
- at least one wire harness coupled to the camshaft carrier, a portion of the at least one wire harness extending through the carrier sidewall of the camshaft carrier.
A camshaft carrier for supporting a camshaft on an engine, the camshaft carrier comprising:
- a carrier sidewall defining an interior cavity, the carrier sidewall defining a plurality of injector mounts, the plurality of injector mounts each comprising:
- an injector mount opening configured to receive a portion of a fuel injector assembly therethrough, and a fuel injector connector configured to couple the fuel injector assembly to the carrier sidewall;
- a plurality of cam saddles coupled to the carrier sidewall and disposed within the interior cavity, the plurality of cam saddles configured to support the camshaft;
- and
- a plurality of rocker support tabs, at least one rocker support tab of the plurality of rocker support tabs defining a rocker mount opening configured to couple a rocker arm to the camshaft carrier.
A camshaft carrier for supporting a camshaft on an engine, the camshaft carrier comprising:
- a carrier sidewall defining an interior cavity, the carrier sidewall defining a plurality of injector mounts, the plurality of injector mounts each comprising:
- an injector mount opening configured to receive a portion of a fuel injector assembly therethrough, and a fuel injector connector configured to couple the fuel injector assembly to the carrier sidewall;
- a plurality of cam saddles coupled to the carrier sidewall and disposed within the interior cavity, the plurality of cam saddles configured to support the camshaft, each of the plurality of cam saddles extending between a first sidewall portion of the carrier sidewall and a second sidewall portion of the carrier sidewall that is spaced apart from the first sidewall portion, the plurality of cam saddles defining bores that are coaxially aligned with one another;
- and
- a plurality of support struts, each of the plurality of support struts engaged with and extending away from a respective one of the plurality of cam saddles to the carrier sidewall, the plurality of support struts defining a plurality of through-hole openings, the plurality of through-hole openings each configured to receive a cylinder head fastener therethrough.
A method of assembly for an internal combustion engine, comprising:
- coupling a camshaft carrier to a cylinder head of the engine, the cylinder head defining at least one of an inlet passage or an exhaust passage therein;
- coupling a camshaft to the camshaft carrier so that the camshaft is disposed substantially within an interior cavity of the camshaft carrier;
- coupling a fuel injector assembly to the camshaft carrier by inserting a portion of the fuel injector assembly through an opening in a carrier sidewall of the camshaft carrier, and fastening the fuel injector assembly to the camshaft carrier;
- and
- coupling at least one wire harness to the camshaft carrier so that a portion of the at least one wire harness extends through the carrier sidewall of the camshaft carrier.
Dependencies are inferred from the claim text.