Provided is a urine-feces separation toilet bowl including a urine and feces separator configured to separate urine and feces and use them to generate renewable energy. The urine-feces separation toilet bowl includes: a main body portion configured to accommodate excreta; a cover portion having a plate shape, having a first surface and a second surface, and provided on the main body portion, the first surface being arranged towards the inside of the main body portion; a toilet seat portion between the main body portion and the cover portion; an excreta accommodation portion including a first accommodation portion configured to accommodate urine and a second accommodation portion configured to accommodate feces; and an excreta separator between the first accommodation portion and the second accommodation portion and configured to separate the first accommodation portion and the second accommodation portion.

Some embodiments include a fluid control system with an outlet valve assembly, an inlet valve assembly including a venturi inlet valve, and an actuator coupled to the inlet valve assembly. In some embodiments, the actuator can enable a user to control a flush volume of fluid control system. Some embodiments include a moveable float positioned in a chamber of the outlet valve assembly, where the chamber includes a variably-sized upper portion with a volume that is based at least in part on a variable position of the moveable float in the chamber. Some embodiments include a adjustable control valves coupled to an outer surface of the outlet valve assembly and the inlet valve assembly. Some embodiments also include a bellows positioned in and coupled to the variably-sized upper portion. In some embodiments, the bellows are fluidly coupled to the venturi inlet valve and at least one of the control valves.

Some embodiments include a fluid control system with an outlet valve assembly, an inlet valve assembly including a venturi inlet valve, and an actuator coupled to the inlet valve assembly. In some embodiments, the actuator can enable a user to control a flush volume of fluid control system. Some embodiments include a moveable float positioned in a chamber of the outlet valve assembly, where the chamber includes a variably-sized upper portion with a volume that is based at least in part on a variable position of the moveable float in the chamber. Some embodiments include a adjustable control valves coupled to an outer surface of the outlet valve assembly and the inlet valve assembly. Some embodiments also include a bellows positioned in and coupled to the variably-sized upper portion. In some embodiments, the bellows are fluidly coupled to the venturi inlet valve and at least one of the control valves.

Various embodiments for conserving fluid based on the position of a toilet seat are presented. One example embodiment includes a toilet flushing system having a fluid regulation component and a position detector. The fluid regulation component is configured to regulate an amount of fluid used to flush a toilet during a flush cycle. The position detector is configured to detect whether the toilet seat is in a raised position or a lowered position. The position detector is coupled to the fluid regulation component to communicate whether the toilet seat is in the raised position or the lowered position. The fluid regulation component is further configured to regulate the amount of fluid used during the flush cycle based at least in part on whether the toilet seat is in the raised position or the lowered position.

Various embodiments for conserving fluid based on the position of a toilet seat are presented. One example embodiment includes a toilet flushing system having a fluid regulation component and a position detector. The fluid regulation component is configured to regulate an amount of fluid used to flush a toilet during a flush cycle. The position detector is configured to detect whether the toilet seat is in a raised position or a lowered position. The position detector is coupled to the fluid regulation component to communicate whether the toilet seat is in the raised position or the lowered position. The fluid regulation component is further configured to regulate the amount of fluid used during the flush cycle based at least in part on whether the toilet seat is in the raised position or the lowered position.

A drain fitting for a toilet cistern including a drain valve, which is constructed from a discharge nozzle mounted on the cistern and a lift-adjustable overflow tube, which closes a flow passage through the discharge nozzle in its closed position, and having a pneumatic actuator, with the aid of which, upon the application of pressure, the overflow tube is adjustable into its open position, in which a quantity of flush water is able to flow out of the discharge nozzle of the toilet cistern. An underpressure may be applied to the pneumatic actuator to lift-adjust the overflow tube into its open position. The drain fitting includes an, in particular water-conducting, underpressure unit, which is connected to the pneumatic actuator and generates an underpressure acting upon the pneumatic actuator upon activation by the user.

A drain fitting for a toilet cistern including a drain valve, which is constructed from a discharge nozzle mounted on the cistern and a lift-adjustable overflow tube, which closes a flow passage through the discharge nozzle in its closed position, and having a pneumatic actuator, with the aid of which, upon the application of pressure, the overflow tube is adjustable into its open position, in which a quantity of flush water is able to flow out of the discharge nozzle of the toilet cistern. An underpressure may be applied to the pneumatic actuator to lift-adjust the overflow tube into its open position. The drain fitting includes an, in particular water-conducting, underpressure unit, which is connected to the pneumatic actuator and generates an underpressure acting upon the pneumatic actuator upon activation by the user.

Provided is a urine-feces separation toilet bowl including a urine and feces separator configured to separate urine and feces and use them to generate renewable energy. The urine-feces separation toilet bowl includes: a main body portion configured to accommodate excreta; a cover portion having a plate shape, having a first surface and a second surface, and provided on the main body portion, the first surface being arranged towards the inside of the main body portion; a toilet seat portion between the main body portion and the cover portion; an excreta accommodation portion including a first accommodation portion configured to accommodate urine and a second accommodation portion configured to accommodate feces; and an excreta separator between the first accommodation portion and the second accommodation portion and configured to separate the first accommodation portion and the second accommodation portion.

Various embodiments for conserving fluid based on the position of a toilet seat are presented. One example embodiment includes a toilet flushing system having a fluid regulation component and a position detector. The fluid regulation component is configured to regulate an amount of fluid used to flush a toilet during a flush cycle. The position detector is configured to detect whether the toilet seat is in a raised position or a lowered position. The position detector is coupled to the fluid regulation component to communicate whether the toilet seat is in the raised position or the lowered position. The fluid regulation component is further configured to regulate the amount of fluid used during the flush cycle based at least in part on whether the toilet seat is in the raised position or the lowered position.

Various embodiments for conserving fluid based on the position of a toilet seat are presented. One example embodiment includes a toilet flushing system having a fluid regulation component and a position detector. The fluid regulation component is configured to regulate an amount of fluid used to flush a toilet during a flush cycle. The position detector is configured to detect whether the toilet seat is in a raised position or a lowered position. The position detector is coupled to the fluid regulation component to communicate whether the toilet seat is in the raised position or the lowered position. The fluid regulation component is further configured to regulate the amount of fluid used during the flush cycle based at least in part on whether the toilet seat is in the raised position or the lowered position.