{
  "$type": "site.standard.document",
  "description": "A handheld four-stroke engine lubricating system, comprising an oil storage chamber (1) formed by a bottom casing (32) and a lower crank case (31), a crankshaft chamber (2) formed by the lower crank case (31) and an upper crank case (33), an air valve chamber (3) formed by the upper crank case (33)…",
  "path": "/patents/969151",
  "publishedAt": "2014-10-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01M1/04",
    "XINGYUE GROUP CO LTD [CN]"
  ],
  "textContent": "A handheld four-stroke engine lubricating system, comprising an oil storage chamber (1) formed by a bottom casing (32) and a lower crank case (31), a crankshaft chamber (2) formed by the lower crank case (31) and an upper crank case (33), an air valve chamber (3) formed by the upper crank case (33) and a cylinder head cover (36), and a cam chamber (37), formed by the upper crank case (33) and a cam chamber cover (38), and a tappet chamber (30) connected between the air valve chamber (3) and the cam chamber (37); the two sides of the upper and lower crank cases (33, 31) are correspondingly provided with a first and a second oil inlet passages (12, 13) communicating with the oil storage chamber (1) and the crankshaft chamber (2); the first and the second oil inlet passages (12, 13) are correspondingly provided with a first and a second check valves (44, 45) thereon; the first oil inlet passage (12) is connected to a hose (40) pressed against the bottom casing (32); the head of the hose (40) is provided with a first oil suction port (9); the first oil inlet passage (12) is provided with a second oil suction port (10); and the second oil inlet passage (13) is provided with a third oil suction port (11). The lubricating system adopting the above structure has the advantages of simple structure, quick circulation speed, high lubricating efficiency, good oil/gas separation effect, and stable operation in any attitude.",
  "title": "HANDHELD FOUR-STROKE ENGINE LUBRICATING SYSTEM"
}