Method for producing pressure plates used in hydraulic pumps
AssigneeToyoda Koki Kabushiki Kaisha
InventorsMinoru Kawabata, Susumu Honaga, Kenji Takahashi
Life of this patent
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Abstract
Method for producing a pressure plate used in a hydraulic pump by connecting first and second plate sections together include the steps of pressing metal powders to individually form the first and second plate sections and a ring member into predetermined configurations, placing the first plate section properly on the second plate section while the ring member is inserted in a bore formed in the first plate section, placing brazing metal along the upper side diameter of the bore, and heating the first and second plate sections and the ring member so as to connect the first and second plate sections and the ring member together by the brazing metal and simultaneously sintering the same.
Claims5
A method for producing a pressure plate used in a hydraulic pump by fluid-tightly connecting first and second plate sections together, utilizing a ring member having a hole formed therein wherein said first plate section has at least one bore formed therein and said second plate section has at least one port formed therein, which comprises:
- pressing metal powders so as to form said first and second plate sections and said ring member into predetermined configurations;
- setting said first and second plate sections in place and inserting said ring member in said at least one bore formed in said first plate section so as to provide a fluid port in cooperation with said at least one port formed in said second plate section;
- placing brazing metal along an upper side diameter of said at least one bore;
- and
- heating said first and second plate sections and said ring member so as to be fluid-tightly connected together by said brazing metal and simultaneously sintering the same.
Dependencies are inferred from the claim text.