Pressure generation device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroshi Isono
Life of this patent
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Abstract
A pressure-generating device includes an axle hub having a rotary shaft portion supported rotatably in a nonrotatable cylindrical support portion via bearings; a piston attached to the rotary shaft portion in a unitarily rotatable manner and so as to perform a pumping action, and, in cooperation with the rotary shaft portion, forming a pump chamber therebetween; a cam member and cam followers for converting a rotary motion of the axle hub in relation to the cylindrical support member to the pumping action of the piston; a suction path formed in the axle hub and enabling introduction of air into the pump chamber; and a discharge path formed in the axle hub and enabling discharge of air from the pump chamber.
Claims20
A pressure-generating device comprising:
- a rotary member having a rotary shaft portion supported rotatably in a nonrotatable support member via a first bearing;
- a pumping member attached to the rotary shaft portion of the rotary member in a unitarily rotatable manner and in such a manner as to be able to perform a pumping action, and, in cooperation with the rotary shaft portion, forming a pump chamber therebetween;
- a motion-converting mechanism for converting a rotary motion of the rotary member in relation to the support member to the pumping action of the pumping member;
- a suction path formed in the rotary member and enabling introduction of fluid into the pump chamber;
- and
- a discharge path formed in the rotary member and enabling discharge of the fluid from the pump chamber,
- wherein the rotary shaft portion has a coaxially formed cylindrical bore which accommodates the pumping member therein so that the pumping member can reciprocate in an axial direction of the rotary shaft portion.
Dependencies are inferred from the claim text.