Koji Murayama

Title: Koji Murayama: Innovator in Automotive Compressor Technology

Introduction

Koji Murayama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of variable displacement wobble plate compressors. With a total of 3 patents to his name, Murayama's innovations have the potential to enhance the efficiency and functionality of automotive air conditioning systems.

Latest Patents

Murayama's latest patents include a variable displacement wobble plate type compressor for automotive air conditioning. This innovative compressor is designed with a device that can be selectively activated to induce the wobble plate to a position where the compressor's displacement is reduced to zero, eliminating the need for a clutch. Additionally, the device features an arrangement that biases the wobble plate towards a position that allows for positive displacement when in a non-activated state. The strength of this bias does not interfere with the control of the wobble plate inclination, which is influenced by the pressure in the chamber where the plate is located. Another patent focuses on varying the discharge of the compressor by selectively controlling the pressure in the crankcase. The duty cycle of the pressure control signal is determined based on ambient air temperature, the required cabin temperature, and the pressure in the evaporator.

Career Highlights

Throughout his career, Koji Murayama has worked with prominent companies in the automotive industry, including Nihon Radiator Co., Ltd. and Seiko Seiki Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to advancements in compressor technology.

Collaborations

Murayama has collaborated with notable colleagues such as Hideo Shinozuka and Terumitsu Sugita. These partnerships have fostered a creative environment that has led to innovative solutions in automotive technology.

Conclusion

Koji Murayama's contributions to the field of automotive compressors demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of mechanical engineering and a desire to improve automotive air conditioning systems. His work continues to influence the industry and pave the way for future advancements.