Title:
LUBRICATION DEVICE OF ENGINE AND KNAPSACK TYPE BLOWER
Document Type and Number:
Japanese Patent JP2018189005
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To efficiently cool oil for engine lubrication.SOLUTION: A lubrication device 200 of an engine 6 includes: a box-shape oil case 80 which can store oil; a partition wall 84 which partitions the interior of the oil case 80 into a first chamber 91 and a second chamber 92; a first communication path (communication path 59) which communicates a crank chamber 24 and the first chamber 91; a second communication path (oil supply passage 54 and a suction pipe 55) which communicates the crank chamber 24 and the second chamber 92; and a tubular body 110 which is arranged on the outside of the oil case 80, is exposed and allows one end part 110a thereof to be communicated with the first chamber 91 and the other end part 110b thereof to be communicated with the second chamber 92. Upon a positive pressure in the crank chamber 24, oil in the crank chamber 24 is discharged into the first chamber 91 from the crank chamber 24 through the first communication path and, upon a negative pressure in the crank chamber 24, oil in the second chamber 92 is sucked via the second communication path and at least a part of oil in the first chamber 91 reaches the second chamber 92 through the tubular body 110.SELECTED DRAWING: Figure 7
Inventors:
KATO YUYA
WASHIMI TAKUYA
WASHIMI TAKUYA
Application Number:
JP2017090405A
Publication Date:
November 29, 2018
Filing Date:
April 28, 2017
Export Citation:
Assignee:
MAKITA CORP
International Classes:
F01M5/00; F01M1/04
Attorney, Agent or Firm:
Moriaki Ogawa
Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo
Haruyuki Nishiyama
Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo
Haruyuki Nishiyama