High-pressure fuel supply pump

A high-pressure fuel supply pump is provided with a pump body for forming a pressurizing chamber at an inner wall portion, and a flange portion for fixing the pump body to a high-pressure fuel supply pump mounting portion. The high-pressure fuel supply pump is provided with a cylinder and a spring h...

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Bibliographic Details
Main Authors Saito, Atsuji, Suganami, Masayuki, Yamada, Hiroyuki, Yagai, Masamichi, Saso, Yuta, Hashida, Minoru, Tokuo, Kenichiro, Usui, Satoshi
Format Patent
LanguageEnglish
Published 11.05.2021
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Summary:A high-pressure fuel supply pump is provided with a pump body for forming a pressurizing chamber at an inner wall portion, and a flange portion for fixing the pump body to a high-pressure fuel supply pump mounting portion. The high-pressure fuel supply pump is provided with a cylinder and a spring holding member. The cylinder is inserted into a hole portion of the pump body from a lower side and in which the pressurizing chamber is formed further above an uppermost end surface. The spring holding member has an outer peripheral portion press-fitted and fixed to the pump body and a holding portion holding a spring portion for biasing the pump body between the outer peripheral portion and the inner peripheral portion. A spring-side lowest end portion of the holding surface of the spring holding member is disposed above the lowermost end portion of the flange portion.
Bibliography:Application Number: US201716342278