Acoustical heat shield
AssigneeDana Corporation
InventorsCalin Matias, Mark Boogemans, Jason Kirkwood
Life of this patent
Estimating the term…
Abstract
A heat shield includes an inner portion, an outer portion, first and second insulating portions, and a deflecting portion. The inner portion includes a reflective material to reflect thermal energy that radiates from a heat/acoustic source. The outer portion includes a rigid material to provide structural support for the heat shield. The first and second insulating portions are intermediately positioned between the inner and outer portions. The deflecting portion is intermediately positioned between the first and second insulating portions to deflect acoustics from the heat/acoustic source. A method for manufacturing the heat shield is also disclosed.
Claims22
A heat shield comprising:
- an inner portion and outer portion, wherein the inner portion includes a reflective material to reflect thermal energy that radiates from a heat/acoustic source, wherein the outer portion includes a rigid material to provide structural support for the heat shield;
- first and second insulating portions intermediately positioned between the inner and outer portions;
- and
- a deflecting portion intermediately positioned between the first and second insulating portions that deflects acoustics from the heat/acoustic source.
A method for manufacturing a heat shield comprising the steps of:
- blanking an outer portion to form a hemmed portion;
- positioning a first insulating portion over the outer portion;
- positioning an acoustic and heat deflecting portion over the first insulating portion;
- positioning a second insulating portion over the deflecting portion;
- positioning an inner portion over the second insulating portion;
- and
- hemming the hemmed portion of the outer portion about a periphery of the heat shield defined by the first insulating portion, the deflecting portion, the second insulating portion, and the inner portion.
A heat shield comprising:
- an inner portion having a first thickness approximately equal to 0.15 nm and an outer portion having a first thickness approximately equal to 0.40 mm, wherein the inner portion includes a reflective material to reflect thermal energy that radiates from a heat/acoustic source, and wherein the outer portion includes a rigid material to provide structural support for the heat shield;
- a first insulating portion having a first thickness approximately equal to 0.92 mm and a second insulating portion having a first thickness approximately equal to 0.92 mm, intermediately positioned between the inner and outer portions;
- and
- a deflecting portion that includes a first thickness approximately equal to 0.91 mm, intermediately positioned between the first and second insulating portions that deflects acoustics from the heat/acoustic source.
Dependencies are inferred from the claim text.