Energy-absorbing vehicle hood

Details Energy-absorbing vehicle hood Energy-absorbing vehicle hood

2008-07-15

2008-07-15

Pape, Joseph D (Department: 3612)

Land vehicles: bodies and tops

Bodies

Structural detail

C296S187020, C296S187040, C180S274000, C188S376000

Reexamination Certificate

active

11777321

ABSTRACT:
An energy-absorbing vehicle hood includes outer and inner layers defining a cavity filled with foam material. The outer layer fractures when subjected to a crush load to thereby transmit the load to the foam material where it is absorbed, and both layers are continuously and directly bonded to the foam material. A vehicle includes a vehicle hood assembly having outer and inner layers defining a cavity, with foam material filling the cavity. The outer layer fractures when subjected to a crush load to transmit the load to the foam material for uniformly absorption of the crush load. A hood panel is also provided for use with a vehicle, including an energy-absorbing polymer foam material entrapped between an outer and inner polymer membrane. The membranes have a crush strength, and the foam material is characterized by an absence of a reinforcing structure.

REFERENCES:
patent: 7114765 (2006-10-01), Ishikawa et al.
SAE Document #: 2001/01/0243, A Study of a Continuous Variable Valve Event and Lift (Vel) System, Book #: PT-122, Mar. 2001.

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