Piping structure for transporting a fuel
AssigneeTokai Rubber Industries, Ltd.
InventorsTomoki Inoue, Masayuki Sasagawa
Life of this patent
Estimating the term…
Abstract
A piping structure for transporting a fuel arranged between an engine and a fuel tank, is constructed by use of a resin tube that is formed in a straight tubular shape. The resin tube is flexed and bent at one or more points along a longitudinal direction of the resin tube to define one or more bent portions and thereby is provided with a predetermined bent shape. The resin tube is fixed in a motor vehicle body so as to retain the bent portions and thereby assembled in the motor vehicle body.
Claims18
A piping structure for transporting a fuel, arranged between an engine and a fuel tank, comprising:
- a resin tube formed in a straight tubular shape, for transporting a fuel, the resin tube being flexed and bent at one or more points along a longitudinal direction of the resin tube to define one or more bent portions and thereby being provided with a predetermined bent shape, and
- a fixing clamp for fixing the resin tube in a motor vehicle body so as to retain the one or more bent portions and thereby assembling the resin tube in the motor vehicle body.
The piping structure for transporting a fuel as set forth in clam 2, wherein the fixing clamp retains the one or more bent portions of the resin tube by fixing a region of each side of the one or more bent portions of the resin tube in the motor vehicle body.
A resin tube for transporting a fuel to be adapted in a piping structure for transporting a fuel, arranged between an engine and a fuel tank, the piping structure, comprising:
- a resin tube formed in a straight tubular shape, for transporting a fuel, the resin tube being flexed and bent at one or more points along a longitudinal direction of the resin tube to define one or more bent portions and thereby being provided with a predetermined bent shape, and
- a fixing clamp for fixing the resin tube in a motor vehicle body so as to retain the one or more bent portions and thereby assembling the resin tube in the motor vehicle body,
- the resin tube, comprising:
- a small diameter resin tube body with an outer diameter up to 6 mm, and
- an elastic clamped layer laminated on an outer peripheral surface of the resin tube body to be clamped by the fixing clamp, the elastic clamped layer having a predetermined wall thickness and covering the resin tube body along an entire effective length of the resin tube that effects flexing deformation.
A resin tube for transporting a fuel to be adapted in a piping structure for transporting a fuel, arranged between an engine and a fuel tank, the piping structure, comprising:
- a resin tube formed in a straight tubular shape, for transporting a fuel, the resin tube being flexed and bent at one or more points along a longitudinal direction of the resin tube to define one or more bent portions and thereby being provided with a predetermined bent shape, and
- a fixing clamp for fixing the resin tube in a motor vehicle body so as to retain the one or more bent portions and thereby assembling the resin tube in the motor vehicle body,
- wherein a mark is provided on an outer peripheral surface of the resin tube, along a generally entire length of the resin tube, the mark extends linearly in a longitudinal direction of the resin tube in a state that the resin tube extends straight.
Dependencies are inferred from the claim text.