HIGH-PRESSURE FUEL SUPPLY PUMP

• Main Author: MUNAKATA AKIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 15.11.2018
• Subjects: BLASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; COMBUSTION ENGINES; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINE TOOLS; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TRANSPORTING; WEAPONS; WELDING; WORKING BY LASER BEAM

PROBLEM TO BE SOLVED: To provide a joining structure of a pump housing and functional components which can reduce the weight of a pump main body.SOLUTION: A high-pressure fuel supply pump is constituted by inserting functional components 8d, 12c into fuel passages 12a, 1b opened at an outer face of a pump body 1 from the outside of the pump body 1, and joining the functional components 8d, 12c to the pump body 1 by a pressure-insertion part 405 and a weld part 407. The pressure-insertion part 405 is constituted in the pump body 1 by pressure-inserting the functional components 8d, 12c into internal peripheral faces of the fuel passages 12a, 1b, and the weld part 407 is arranged on the outer face side of the pump body 1 rather than the pressure-insertion part 405.SELECTED DRAWING: Figure 2 【課題】本発明の目的は、ポンプ本体を軽量化することができる、ポンプハウジングと機能部品との接合構造を提供することにある。【解決手段】高圧燃料供給ポンプは、ポンプボディ１の外面に開口する燃料通路１２ａ，１ｂにポンプボディ１の外側から機能部品８ｄ，１２ｃを挿入し、機能部品８ｄ，１２ｃをポンプボディ１に圧入部４０５と溶接部４０７とで接合して構成され、圧入部４０５は燃料通路１２ａ，１ｂの内周面に機能部品８ｄ，１２ｃの外周面を圧入してポンプボディ１の内部に構成され、溶接部４０７は圧入部４０５よりポンプボディ１の外面側に設けられる。【選択図】図２