Sparkplug boot and wire protector and assembly
AssigneeMetro Motorsports, Inc.
InventorJoseph R. Aluise, Sr.
Life of this patent
Estimating the term…
Abstract
A substantially cylindrical ceramic protector that thermally insulates a silicone sparkplug boot surrounding a silicone covered sparkplug ignition wire connected to a sparkplug. An air gap between the protector and boot provides additional thermal insulation and evacuates leaked combustion gases to the atmosphere.
Claims18
A protector that thermally insulates a silicone sparkplug boot surrounding a silicone sparkplug ignition wire connected to a sparkplug, the protector comprises:
- a cylindrical first portion having constant inner and outer diameters throughout a length of the first portion, wherein the first portion substantially surrounds the sparkplug boot and at least a portion of the sparkplug ignition wire connected to the sparkplug, the inner diameter of the first portion being larger than an outer diameter of the sparkplug boot, wherein an air gap is formed radially therebetween completely along an entire length of the sparkplug boot and axially at a location remote from the sparkplug to provide additional thermal insulation to the sparkplug boot and ignition wire.
An assembly that protects and thermally insulates a silicone sparkplug ignition wire and sparkplug connection, the assembly comprising:
- a substantially silicone sparkplug boot that surrounds the sparkplug ignition wire and sparkplug connection, the boot having a constant outer diameter;
- and
- a protector having a cylindrical first portion with constant inner and outer diameters throughout a length of the first portion, wherein the first portion substantially surrounds the sparkplug boot and at least a portion of the sparkplug ignition wire connected to the sparkplug, the inner diameter of the first portion being larger than the outer diameter of the sparkplug boot such that an air gap is formed radially therebetween completely along an entire length of the sparkplug boot and axially at a location remote from the sparkplug to provide additional thermal insulation to the sparkplug boot and ignition wire.
The assembly according claim to 10, wherein a thickness of the air gap is not constant.
Dependencies are inferred from the claim text.