Stirling engine
AssigneeYanmar Holdings Co., Ltd.
InventorsKazuyuki Koda, Masato Kitazaki, Jiro Fukudome, Osamu Sakamoto, Nobu Kobayashi
Life of this patent
Estimating the term…
Abstract
A Stirling engine includes: the thermosiphon that accommodates the heating medium receiving heat from a heat source; and an engine unit that has a body accommodating working gas. A heater that gives heat to the working gas by the heating medium is arranged in the body. The Stirling engine includes an engine controller that executes control for increasing an absorbed amount of thermal energy from the heating medium when at least one of the pressure and the temperature of the heating medium exceeds a predetermined value.
Claims18
A Stirling engine comprising:
- a thermosiphon that accommodates a heating medium receiving heat from a heat source;
- an engine unit that has a body accommodating working gas;
- a heater being arranged in the body, which gives the heat to the working gas by the heating medium;
- and
- an engine controller configured to control an increase in an absorbed amount of thermal energy from the heating medium when at least one of a pressure and a temperature of the heating medium exceeds a predetermined value,
- wherein controlling the increase in the absorbed amount controls an increase in output of the engine unit,
- the engine controller includes a rotational speed control unit that controls a rotational speed of a work machine driven by the engine unit, and
- the rotational speed control unit increases the rotational speed of the work machine when at least one of the pressure and the temperature of the heating medium exceeds the predetermined value.
A Stirling engine comprising:
- a thermosiphon that accommodates a heating medium receiving heat from a heat source;
- an engine unit that has a body accommodating working gas;
- a heater being arranged in the body, which gives the heat to the working gas by the heating medium;
- and
- an engine controller configured to control an increase in an absorbed amount of thermal energy from the heating medium when at least one of a pressure and a temperature of the heating medium exceeds a predetermined value,
- wherein controlling the increase in the absorbed amount controls cooling for the heating medium by a heat exchanger that is provided in the middle of a heating medium circulation path, through which the heating medium flows via the heater.
Dependencies are inferred from the claim text.