TH57116B - High pressure fuel injection pipe - Google Patents

Abstract

DC60 (02/10/58). This invention will provide a high pressure fuel injection hose. which can reduce the combination of The stress applied to the underside of the connecting header is caused by the bending load. Or something similar. Effectively, high pressure fuel injection pipes. where the connector head diameter is increased by casting with Bending at the end of a thick metal tube and has a small diameter There is a unique feature that the part under the head is molded with a thick wall. which is in accordance with the conditions of radius of curvature R1 of section A of thick-walled section continuous to the connection head is 0.03 to 0.15 times the outer diameter of the pipe; The radius of curvature R2 of section B continuing from section A of the thick-walled section to the straight pipe section is 0.3 to 1.5 times the outer diameter of the pipe; and the largest diameter w The thickness of the wall section is 0.25 to 0.4 times the longest protruding diameter w of the connecting head. Revised 2/10/2015 This invention will provide a high pressure fuel injection hose which can reduce the combination of The stress applied to the underside of the connecting header is caused by the bending load. Or something similar. Effectively, high pressure fuel injection pipes. where the connector head diameter is increased by casting with Bending at the end of a thick metal tube and has a small diameter There is a unique feature that the part under the head is molded with a thick wall. which satisfy the condition of: radius of curvature R1 of section A of thick wall section continuous to the connection head is 0.03 to 0.15 times the outer diameter of the pipe; The radius of curvature R2 of section B continuing from section A of the thick-walled section to the straight pipe section is 0.3 to 1.5 times the outer diameter of the pipe; and the largest diameter w The thickness of the wall section is 0.25 to 0.4 times the length of the protruding diameter w of the connecting head. ---------------------------------------------------- ------------- Revised 29/01/16 This invention will provide a high pressure fuel injection hose. which can reduce the combination of The stress applied to the under-head of the connecting head is caused by the bending load. Or something similar. Effectively, high pressure fuel injection pipes. where the connector head diameter is increased by casting with Bending at the end of a thick metal tube and has a small diameter There is a unique feature that the part under the head is molded with a thick wall. which satisfy the condition of: radius of curvature R1 of section A of thick wall section continuous to the connection head is 0.03 to 0.15 times the outer diameter of the pipe; The radius of curvature R2 of section B continuing from section A of the thick-walled section to the straight pipe section is 0.3 to 1.5 times the outer diameter of the pipe; and the largest diameter W The thickness of the wall section is 0.25 to 0.4 times the longest protruding diameter W of the connection head. .................................................. .................................................. .......................... This invention will provide a high pressure fuel injection hose. which can reduce the combination of The stress applied to the underside of the connecting header is caused by the bent load. Or something similar. Effectively, high pressure fuel injection pipes. where the connector head diameter is increased by casting with Bending at the end of a thick metal tube and has a small diameter There is a unique feature that the part under the head is molded with a thick wall. which is in accordance with the conditions of; radius of curvature R1 of section A of thick-walled section continuous to the connection head is 0.03 to 0.15 times the outer diameter of the pipe; The largest diameter w The thickness of the wall section is 0.25 to 0.4 times the length of the protruding diameter w of the connection head:

Claims (8)

Disclaimer (all) which will not appear on the advertisement page: edit 2/10/58 1. High-pressure fuel injection pipe, which consists of a thick metal pipe of small diameter. And the connected header is built as a whole as the same unit at its end, the connected header has an increased diameter by deflection molding. And built with the surface Compressed seat in relation to the seat surface of the pipe joint for the joint side on the surrounding edge. Outside on the connected side Where the lower header of the connected header is formed with a thick wall segment which is conditional upon the radius of curvature R1 of part A of the continuous thick wall section to the connected header is 0.03. Up to 0.15 times the outer diameter of the pipe The radius of curvature R2 of part B connected from part A of the thick wall section to the straight pipe section is 0.3 to 1.5 times the outer diameter of the pipe and the maximum diameter w of the thick wall section is 0.25 to 0.4 times. Of the connected length Comes out according to the largest diameter w of the connected headers. 2. High-pressure fuel injection pipe according to claim 1, where the high-pressure fuel injection pipe is built. From carbon steel pipes for high pressure piping systems, stainless steel pipes or their component pipe materials. 3. High-pressure fuel injection hoses according to claim 1, where the connecting headers are made to A truncated arc shape with a spherical compressed seat surface on its outer periphery. 4.High pressure fuel injection pipe according to claim 1, where the size of the thick metal pipe with a small diameter is on the order of 4.5 mm-20 mm in the pipe diameter, 1.0 mm to 5.0 mm. M in inner diameter 5. High-pressure fuel injection pipe, which consists of a thick metal tube of small diameter. And the connected header is built as a whole as the same unit at its end, the connected header has an increased diameter by deflection molding. And built with the surface Compressed seat in relation to the seat surface of the pipe joint for the joint side on the surrounding edge. Outside on the connected side Where the lower headings of the connected headers are formed with tapered walls that satisfy the conditions of the angle (formula) of the tapered wall leading out to the back. And continue to the pipe section that In relation to the center line of the pipe is 7 to 15 degrees, the radius of curvature R1 of section A of the tapered wall section that continues to the connecting header is 0.03 to 0.15 times the outer diameter of the pipe. The radius of curvature R2 of the B part of the wall tapered to the straight pipe section is 0.3 to 1.5 times the outer diameter of the pipe and the maximum diameter W of the tapered wall is 0.25 to 0.4 times the extension length. Comes out according to the largest diameter W of the connected headers. 6. High-pressure fuel injection pipe according to claim 5, where the high-pressure fuel injection pipe is built. From carbon steel pipes for high pressure piping systems, stainless steel pipes or their component pipe materials. 7. High-pressure fuel injection pipe according to claim 5, where the connected header of the fuel injection pipe High pressure is created into an end-truncated arc shape with a spherical compressed seat surface on it. Its surrounding edges 8.High-pressure fuel injection pipe according to claim 5, where the size of the thick metal pipe with a small diameter is on the order of 4.5 mm-20 mm in the pipe diameter, 1.0 mm to 5.0 mm. M in inner diameter -------------------------------------------------- --------- EDIT 02/10/58 1. High-pressure fuel injection pipe, which is assembled with a thick metal pipe of small diameter. And the connected header is built as a whole as the same unit at its end, the connected header has an additional center line. By forming that deflection And built with the surface Compressed seat in relation to the seat surface of the pipe joint for the joint side on the surrounding edge. Outside on the connected side Where the lower header of the connected header is formed with a thick wall segment which is conditional upon the radius of curvature R1 of part A of the continuous thick wall section to the connected header is 0.03. Up to 0.15 times the outer diameter of the pipe The radius of curvature R2 of part B connected from part A of the thick wall section to the straight pipe section is 0.3 to 1.5 times the outer diameter of the pipe and the maximum diameter w of the thick wall section is 0.25 to 0.4 times. Of the connected length Comes out according to the largest diameter W of the connected headers. 2. High-pressure fuel injection pipe according to claim 1, where the high-pressure fuel injection pipe is built. From carbon steel pipes for high pressure piping systems, stainless steel pipes or their component pipe materials. 3. High-pressure fuel injection hoses according to claim 1, where the connecting headers are made to A truncated arc shape with a spherical compressed seat surface on its outer periphery. 4.High-pressure fuel lashing pipes according to claim 1, where the size of thick and small-diameter metal pipes is on the order of 4.5 mm-20 mm in pipe diameter, 1.0 mm to 5.0 m. M in inner diameter 5. High-pressure fuel injection pipe, which consists of a thick metal tube of small diameter. And the connected header is built as a whole as the same unit at its end, the connected header has an increased diameter by deflection molding. And built with the surface Compressed seat in relation to the seat surface of the pipe joint for the joint side on the surrounding edge. Outside on the connected side Where the lower header of the connecting header is formed with a tapered wall that satisfies the condition of the 0 angle of the wall leading out to the back. And continue to the pipe section that In relation to the center line of the pipe is 7 to 15 degrees, the radius of curvature R1 of section A of the tapered wall section that continues to the connecting header is 0.03 to 0.15 times the outer diameter of the pipe. The radius of curvature R2 of the B part of the continuous tapered wall to the straight pipe section is 0.3 to 1.5 times the outer diameter of the pipe and the maximum diameter W of the tapered wall is 0.25 to 0.04 times the length at per Comes out according to the largest diameter W of the connected headers. 6. High-pressure fuel injection pipe according to claim 5, where the high-pressure fuel injection pipe is built. From carbon steel pipes for high pressure piping systems, stainless steel pipes or their component pipe materials. 7. High-pressure fuel injection pipe according to claim 5, where the connected header of the fuel injection pipe High pressure is created into an end-truncated arc shape with a spherical compressed seat surface on it. Its surrounding edges 8.High-pressure fuel injection pipe according to claim 5, where the size of the thick metal pipe with a small diameter is on the order of 4.5 mm-20 mm in the pipe diameter, 1.0 mm to 5.0 mm. M in inner diameter .................................................. .................................................. ........................... 1.High pressure fuel injection pipe That consists of a thick metal tube and a small diameter and a connecting header that is essentially the same overall at the ends of It, the connected headers, have an increased diameter by forming that rogue. And built with the surface The depressing position is related to the secondary surface of the pipe joint for the joint side on the surrounding edge. Outside on the connected side Where the lower header of the connecting header is formed with a thick wall segment which is conditional upon the radius of curvature R1 of part A of the continuous thick wall section to the connecting header is 0.03 to 0.15 times of the pipe diameter The radius of curvature R2 of the B section continued from A of the thick wall section to the straight pipe section is 0.03 to 0.15 times the outer diameter of the pipe and the maximum diameter w of the thick wall section is 0.25 to 0.4 times that of Attached length Comes out according to the largest diameter W of the connected headers. 2.High pressure fuel injection pipe According to claim 1, where the high pressure fuel injection pipe is a form of carbon steel pipe. For making high-pressure pipes, stainless steel tubes, or composite materials used to make pipes. 3. High pressure fuel injection pipes. According to claim 1 or 2, where the connection head is formed into a shortened shape. With a circular pressurized surface on the surrounding area 4.High pressure fuel injection pipe According to claim 1 or 2, where the size of the thick metal pipe And has a small diameter The pipe diameter is in order of 4.5 mm to 20 mm, inner diameter 1.0 mm to 5.0 mm. 5. High pressure fuel injection pipe. It consists of a thick metal tube. And has a small diameter And the head is connected to form a homogeneous end at the end The connection header has a diameter that Increased by casting with a bend And forming with the surface of the press With respect to the surface of the platform Of pipe joints for the even sides On the outer perimeter, on the connecting side Where the portion underneath the head of the header connects Being formed with a slender wall part which is in accordance with the conditions of; The angle of the slender wall that extends behind And continue to the straight pipe section in section The centerline of the pipe is 7 to 15 degrees. The radius of the radius R1 of the A section of the tapered wall that continues to the connecting header is 0.03 to 0.15 times the outer diameter of the pipe. The radius of the curvature R2 of part B of the tapered wall. Where the continuous to the straight pipe section is 0.3 to 1.5 times the outer diameter of the pipe; And the largest diameter W of the smaller wall = 0.25 to 0.4 times the length of the longest protruding diameter W of the connecting head. 6. High pressure fuel injection pipe According to claim 5, where high-pressure fuel is injected, it forms a carbon steel pipe. For making high pressure pipes, stainless steel tubes, or composite materials used to make pipes. 7. High pressure fuel injection pipes. According to claim 5 or 6 where the connection header of the injection pipe High pressure fuel Will be forming a shape that has been cut shortened With a circular press-shaped surface On the area around the outside 8.High pressure fuel injection pipe According to claim 5 or 6, where the size of the thick metal pipe and Small diameter There will be pipe diameter order of 4.5 mm - 20 mm, inner diameter 1.0 mm to 5.0 mm.