# US 11,898,521 B1 · Exhaust manifold gasket device

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- Number: US 11,898,521 B1
- Document ID: US11898521B1
- Status: Granted
- Kind: B1
- Application number: 18/220,003
- Filed: 2023-07-10
- Granted: 2024-02-13
- Earliest claimed: 2023-07-10
- Applicants: Martin Rodriguez
- Inventors: Martin Rodriguez
- Web page: https://patentgrep.com/patent/US11898521B1

## CPC

- F02M 35/10144: {Connections of intake ducts to each other or to another device}
- F01N 13/1827: {Sealings specially adapted for exhaust systems (sealings in general F16J15/00)}
- F16J 15/061: {with positioning means (F16J15/0831 takes precedence)}
- F16J 15/0818: {Flat gaskets}
- F01N 13/10: of exhaust manifolds {(with cooling jacket F01N3/046)}
- F02F 11/00: Arrangements of sealings in combustion engines {(piston rings or ring sealings of similar construction F16J9/00)}
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS
- F02F: CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES

## Abstract

An exhaust manifold gasket device for precisely aligning a gasket for installation includes a gasket that has an exhaust hole and a coolant hole thereby facilitating the gasket to be positioned between an exhaust manifold and a cylinder head of an internal combustion engine. The gasket has a pair of locating slots each extending into the gasket to facilitate each of the locating slots to receive a respective head bolt in the exhaust manifold. In this way the gasket can be precisely aligned for final installation.

## Claims

### Claim 1

An exhaust manifold gasket device to facilitate a gasket to be precisely located between an exhaust manifold and a cylinder head of an internal combustion engine prior to tightening fasteners, said device comprising:
a gasket having an exhaust hole and a coolant hole thereby facilitating said gasket to be positioned between an exhaust manifold and a cylinder head of an internal combustion engine, said gasket having a pair of locating slots each extending into said gasket to facilitate each of said locating slots to receive a respective head bolt in said exhaust manifold thereby facilitating said gasket to be precisely aligned for final installation, said gasket has a top surface, a bottom surface and a perimeter edge extending between said top surface and said bottom surface, said perimeter edge having a front side, a back side, a first lateral side and a second lateral side, said exhaust hole extending through said top surface and said bottom surface at a point being centrally located on said gasket, said coolant hole extending through said top surface and said bottom surface at a point being located between said exhaust hole and said back side of said perimeter edge, said coolant hole being centrally positioned between said first lateral side and said second lateral side of said perimeter edge, each of said locating slots extending from said back side of said perimeter edge toward said front side of said perimeter edge, each of said locating slots being spaced from a respective one of said first lateral side and said second lateral side of said perimeter edge, each of said locating slots having a terminal end being rounded thereby facilitating said terminal end of each of said locating slots to conform to curvature of said respective head bolt when said gasket is installed, said terminal end of each of said locating slots being aligned with a bottom side of a bounding edge of said exhaust hole, said gasket having a pair of fastener holes each extending through said top surface and said bottom surface of said gasket, each of said fastener holes being aligned with a respective one of said locating slots, each of said fastener holes being spaced from said front side of said perimeter edge of said gasket, each of said fastener holes being positioned between a front side of said bounding edge of said exhaust hole and said front side of said perimeter edge of said gasket.

### Claim 2

An exhaust manifold gasket system to facilitate a gasket to be precisely located between an exhaust manifold and a cylinder head of an internal combustion engine prior to tightening fasteners, said system comprising:
an internal combustion engine having an exhaust manifold and a cylinder head; and
a gasket having an exhaust hole and a coolant hole thereby facilitating said gasket to be positioned between said exhaust manifold and said cylinder head of said internal combustion engine, said gasket having a pair of locating slots each extending into said gasket to facilitate each of said locating slots to receive a respective head bolt in said exhaust manifold thereby facilitating said gasket to be precisely aligned for final installation, said gasket has a top surface, a bottom surface and a perimeter edge extending between said top surface and said bottom surface, said perimeter edge having a front side, a back side, a first lateral side and a second lateral side, said exhaust hole extending through said top surface and said bottom surface at a point being centrally located on said gasket, said coolant hole extending through said top surface and said bottom surface at a point being located between said exhaust hole and said back side of said perimeter edge, said coolant hole being centrally positioned between said first lateral side and said second lateral side of said perimeter edge, each of said locating slots extending from said back side of said perimeter edge toward said front side of said perimeter edge, each of said locating slots being spaced from a respective one of said first lateral side and said second lateral side of said perimeter edge, each of said locating slots having a terminal end being rounded thereby facilitating said terminal end of each of said locating slots to conform to curvature of said respective head bolt when said gasket is installed, said terminal end of each of said locating slots being aligned with a bottom side of a bounding edge of said exhaust hole, said gasket having a pair of fastener holes each extending through said top surface and said bottom surface of said gasket, each of said fastener holes being aligned with a respective one of said locating slots, each of said fastener holes being spaced from said front side of said perimeter edge of said gasket, each of said fastener holes being positioned between a front side of said bounding edge of said exhaust hole and said front side of said perimeter edge of said gasket.