Title:
OUTBOARD MOTOR
Document Type and Number:
Japanese Patent JP2023152101
Kind Code:
A
Abstract:
To efficiently send cooling water to an engine by a plurality of pumps, and downsize an outboard motor.SOLUTION: An outboard motor comprises a bracket, an engine, an upper case, a lower case, a cavitation plate, a transmission mechanism, a cooling water passage, a first pump, and a second pump. The transmission mechanism includes a drive shaft and a propeller shaft. The cooling water passage is connected to the engine, and is arranged in the upper case and the lower case. The first pump is arranged below a lower end of the bracket. The first pump is connected to the transmission mechanism, and sends cooling water to the engine via the cooling passage. The first pump is a non-positive displacement pump. The second pump is driven by the driving force of the transmission mechanism, and sends cooling water to the engine via the cooling passage.SELECTED DRAWING: Figure 1
Inventors:
ONOE JUNYA
KOGA HIROKI
KADOBAYASHI YOSHIYUKI
SARUWATARI KIMITAKA
NOMA AKIHIRO
KOGA HIROKI
KADOBAYASHI YOSHIYUKI
SARUWATARI KIMITAKA
NOMA AKIHIRO
Application Number:
JP2022062043A
Publication Date:
October 16, 2023
Filing Date:
April 01, 2022
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD
International Classes:
F01P5/10; B63H20/28; F01P5/12; F01P11/04
Attorney, Agent or Firm:
Patent Attorney Corporation Shinju Global IP
Takuji Yamashita
Takuji Yamashita
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