Fuel supply apparatus and fuel supply unit

Abstract

A fuel injection apparatus for adjusting a flow rate of gas fuel and injecting and supplying the gas fuel through a discharge hole includes an open portion having a larger diameter than the discharge hole and being communicated with a downstream end of the discharge hole, and a separation suppressing member placed in the open portion. The separation suppressing member is configured to suppress generation of separation of the gas fuel flow when the gas fuel flows out from the discharge hole into the open portion.

What is claimed is: 
     
         1 . A fuel supply apparatus having a discharge hole and configured to adjust a flow rate of fuel gas and inject and supply the fuel gas through the discharge hole, the apparatus comprising:
 an open portion formed with a larger diameter than the discharge hole and communicated with a downstream end of the discharge hole; and   a separation suppressing member configured to suppress generation of separation of flow of the gas fuel when the gas fuel flows out from the discharge hole into the open portion, and   wherein the separation suppressing member is placed in one of the open portion and the discharge hole.   
     
     
         2 . The fuel supply apparatus according to  claim 1 , wherein the separation suppressing member is made of one of a porous body and a mesh body. 
     
     
         3 . The fuel supply apparatus according to  claim 1 , wherein the separation suppressing member includes a downstream-side end face formed in a spherical shape. 
     
     
         4 . The fuel supply apparatus according to  claim 1 ,
 wherein the separation suppressing member includes a part protruding from the open portion or the discharge hole, and   the separation suppressing member is provided, on its downstream-side end, with a blocking plate for blocking outflow of the gas fuel from a downstream-side end face of the separation suppressing member.   
     
     
         5 . The fuel supply apparatus according to  claim 1 , wherein
 the separation suppressing member is made of a porous body, and   the porous body is placed in the open portion and has a through hole extending in a flowing direction of the gas fuel, the through hole being communicated with the discharge hole.   
     
     
         6 . A fuel supply unit including at least one fuel injection apparatus configured to adjust a flow rate of gas fuel and inject the gas fuel and an outflow passage in which the gas fuel injected from the fuel injection apparatus is to be discharged,
 wherein the fuel supply unit comprises a flow restricting member configured to forcibly direct the gas fuel discharged from a discharge hole of the fuel injection apparatus into the outflow passage to flow in a radial direction of the discharge hole.   
     
     
         7 . The fuel supply unit according to  claim 6 , wherein the flow restricting member is integrally formed with the outflow passage.