Hydrogen injection apparatus

Patent metadata

Field	Value
Publication number	US-10302045-B2
Application number	US-201715437540-A
Country	US
Kind code	B2
Filing date	Feb 21, 2017
Priority date	Feb 24, 2016
Publication date	May 28, 2019
Grant date	May 28, 2019

Abstract

A hydrogen injection apparatus has an injector attached to an attachment hole of a body. The injector can inject hydrogen. A mounting member made of metal is provided on the outer circumferential side of the injector. An annular elastic member is provided in contact with a base of the mounting member. At the time of mounting the injector to the attachment hole, an elastic member and the mounting member are assembled in a manner that the elastic member and the mounting member are accommodated in a support base of an attachment provided at an opening of the attachment hole.

First claim

What is claimed is:

1. A hydrogen injection apparatus comprising:
a body including a fluid channel to flow hydrogen;
an injector inserted into the fluid channel, and configured to inject the hydrogen;
a mounting member provided between a support base and the injector, the support base being provided for the body to face an opening of the fluid channel; and
the mounting member comprising a base as a rigid body configured to contact an outer circumferential surface of the injector,
wherein the base includes:
a contact portion configured to contact either the support base or a step between a large diameter portion and a small diameter portion in the outer circumferential surface; and
a wall provided oppositely to the contact portion in an axial direction in a manner that the wall protrudes toward either the support base or the step which does not contact the contact portion,
wherein an annular elastic member is provided in contact with a surface of the base opposite to the contact portion of the base in the axial direction, and in contact with either the support base or the step which does not contact the contact portion;
an outer diameter of the wall is smaller than an outer diameter of the base, and an outer circumferential surface of the wall and an inner circumferential surface of the elastic member contact each other;
the base includes a cutout portion with a cutout in a radial direction; and
a width of the cutout portion is smaller than an outer diameter of the large diameter portion, and larger than an outer diameter of the small diameter portion.

2. The hydrogen injection apparatus according to claim 1 , wherein the contact portion comprises another wall protruding from the base in a direction opposite to a direction that the wall protrudes from the base.

3. The hydrogen injection apparatus according to claim 1 , wherein the contact portion is formed in a planar shape.

Assignees

• Keihin Corp
• Honda Motor Co Ltd

Inventors

• Koyama Tomoyoshi
• Fukuda Tetsuya
• Inoue Satoshi

Classifications

• F04F5/46

  Arrangements of nozzles · CPC title

• F04F5/16 Primary

  displacing elastic fluids · CPC title

• F02M21/02 Primary

  for gaseous fuels · CPC title

• H01M8/04097

  with recycling of the reactants (H01M8/04119, H01M8/04104 take precedence) · CPC title

• H01M8/04089

  of gaseous reactants · CPC title