オイルポンプ
JP7891737B2Active Publication Date: 2026-07-17SPECIAL PARTS TAKEGAWA
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- SPECIAL PARTS TAKEGAWA
- Filing Date
- 2022-11-16
- Publication Date
- 2026-07-17
AI Technical Summary
Benefits of technology
【0019】 この発明は、リリーフバルブがロータ室の外周部に位置し、バルブボディがクランクケースの端部とクラッチカバーとの間で形成される空間に向かって、ポンプカバーから離れる方向へ突出しているため、ポンプボディはその平坦面が大きくならず、クランクケースの端部に対して、リリーフバルブを有していないオイルポンプを、容易にリリーフバルブを有するオイルポンプに取り替えることができる。
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 0007891737000001 
Figure 0007891737000002 
Figure 0007891737000003
Abstract
To easily replace an oil pump having a relief valve with respect to an end portion of an existing crank case, while utilizing a space formed in advance between the end portion of the crank case and a clutch cover.SOLUTION: A suction oil passage and a discharge oil passage respectively communicated with a rotor chamber in which an inner rotor 14 and an outer rotor 13 are housed, are formed on a pump body 11, a plate-shaped pump cover 12 is superposed on the pump body 11, and the inner rotor 14 and the outer rotor 13 are rotated by rotation of a pump shaft 15 disposed in parallel with a crank shaft 6. A relief valve 16 is connected to the discharge oil passage, a valve body of the relief valve 16 is located at the outer peripheral portion of the rotor chamber, and the valve body is projected in a direction separating from the pump cover 12 toward a space S formed in advance between an end portion 3b of the crank case 3 and a clutch cover 9.SELECTED DRAWING: Figure 2
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