Hiroshi Funai

Title: Hiroshi Funai: Innovator in Engine Technology

Introduction

Hiroshi Funai is a notable inventor based in Wako, Japan. He has made significant contributions to engine technology, holding a total of 3 patents. His work focuses on improving the efficiency and design of internal combustion engines.

Latest Patents

One of Funai's latest patents is for a small-sized boat. This innovative design features a plurality of diaphragm-type carburetors corresponding to each cylinder of a multicylinder engine. The crankshaft axis extends along a line through the bow and stern of the hull. The carburetors include multiple shafts for throttle valves that extend vertically, with a throttle link connected to the upper parts of these shafts. By linking several carburetors together, the overall size is minimized, allowing for installation in a compact engine room.

Another significant patent is for an internal combustion engine with a dry sump lubricating system. This system includes a feed pump that supplies lubricating oil from an external tank to all moving parts of the engine. After circulating, the oil drops into a crank chamber and is quickly returned to the tank by a recovery pump. This design maintains the engine's overall dimensions and provides flexibility in design, even with inclined cylinders.

Career Highlights

Hiroshi Funai is currently employed at Honda Giken Kogyo Kabushiki Kaisha, where he continues to innovate in engine technology. His work has contributed to advancements in engine efficiency and design.

Collaborations

Funai has collaborated with notable coworkers, including Yasushi Fujita and Hideo Shigedomi. Their combined expertise has furthered the development of innovative engine solutions.

Conclusion

Hiroshi Funai's contributions to engine technology through his patents demonstrate his commitment to innovation. His work at Honda Giken Kogyo Kabushiki Kaisha continues to influence the field of internal combustion engines.