초록 ▼

A multilayered fuel tank (10) for a motor vehicle is disclosed having a fuel tank body (32) for holding liquid and vapor fuel comprising a bottom wall (46), side walls (45) and a top wall and a plurality of fuel tank components (35) located on the top wall and seams (37) located on the side walls. A

A multilayered fuel tank (10) for a motor vehicle is disclosed having a fuel tank body (32) for holding liquid and vapor fuel comprising a bottom wall (46), side walls (45) and a top wall and a plurality of fuel tank components (35) located on the top wall and seams (37) located on the side walls. A tank cover (36) is connected to the fuel tank body to define a vapor collection chamber (34). The tank cover encapsulates the top wall and the fuel tank components and seams thereby trapping any fuel vapors that may escape from the tank body, the fuel tank components and the seams. Also disclosed is a method of making the multilayered fuel tank and a method of preventing fuel vapors from escaping from a fuel tank to the environment.

대표청구항 ▼

A multilayered fuel tank (10) for a motor vehicle is disclosed having a fuel tank body (32) for holding liquid and vapor fuel comprising a bottom wall (46), side walls (45) and a top wall and a plurality of fuel tank components (35) located on the top wall and seams (37) located on the side walls. A

A multilayered fuel tank (10) for a motor vehicle is disclosed having a fuel tank body (32) for holding liquid and vapor fuel comprising a bottom wall (46), side walls (45) and a top wall and a plurality of fuel tank components (35) located on the top wall and seams (37) located on the side walls. A tank cover (36) is connected to the fuel tank body to define a vapor collection chamber (34). The tank cover encapsulates the top wall and the fuel tank components and seams thereby trapping any fuel vapors that may escape from the tank body, the fuel tank components and the seams. Also disclosed is a method of making the multilayered fuel tank and a method of preventing fuel vapors from escaping from a fuel tank to the environment. bation of said null plane due to said tissue inhomogeneity. 9. The spectroscopic method of claim 2 further including introducing an exogenous pigment into the subject, said wavelength of said source being optically sensitive to said pigment. 10. The spectroscopic method of claim 1, wherein said wavelength is optically sensitive to an endogenous pigment. 11. The spectroscopic method of claim 1 further including localizing said tissue inhomogeneity based on said determined perturbation of said null plane. 12. An optical system for in vivo, non-invasive examination of biological tissue, comprising: at least one light source constructed to emit light of a visible or infra-red wavelength for introduction into an examined tissue volume from two input ports; a detector constructed to detect light of said wavelength that has migrated in the examined tissue volume to a detection port from said input ports; a radiation controller constructed to sequentially control light emitted from said input ports and constructed to control detection of said light of said wavelength to define a null plane in the tissue volume for said two input ports and said detection port; and a processor, operatively connected to said radiation controller, constructed to determine perturbation of said null plane due to a tissue inhomogeneity in the examined tissue volume. 13. The spectroscopic system of claim 12, wherein said detection port is symmetrically located between said two input ports. 14. The spectroscopic system of claim 12, wherein said at least one light source includes two light sources optically coupled to respective said two input ports, and wherein said detection port is symmetrically located between said two input ports. 15. The spectroscopic system of claim 14, wherein said two light sources are light emitting diodes (LEDs). 16. The spectroscopic system of claim 15 wherein said radiation controller includes a push-pull transformer arranged to provide input signals to said light emitting diodes. 17. The spectroscopic system of claim 14, wherein said two light sources emit said wavelength being optically sensitive to an exogenous pigment introducible into the subject. 18. The spectroscopic system of claim 14, wherein said two light sources emit said wavelength being optically sensitive to indocyanine-green. 19. The spectroscopic system of claim 12 wherein said input ports and said detection port are constructed for simultaneous movement to another location on the subject. 20. The spectroscopic system of claim 12 constructed as a portable unit. 21. The spectroscopic system of claim 12, constructed as a portable unit wherein said at least one light source includes two light sources optically coupled to two said input ports, respectively, wherein said detection port is symmetrically located between said two input ports, and wherein said portable unit is constructed and arranged to enable simultaneous movement of all said ports to different locations for tissue examination. 22. The spectroscopic system of claim 12, further including an optically transparent barrier. 23. The spectroscopic system of claim 12 constructed to localize said tissue inhomogeneity based on said determined perturbation of said null plane. 24. An optical system for in vivo, non-invasive examination of biological tissue, comprising: two light sources constructed to emit light of a visible or infra-red wavelength for introduction into the examined biological tissue from two input ports; a detector constructed to detect light received from the examined tissue at a detection port, said detection port being located in between said two input ports; a radiation controller constructed to sequentially control light emission from said input ports and constructed to control detection of light arriving at said detection port to define a null plane in the examined tissue with respect to locations of said two input ports and said emitted light; and a processor, operatively con