A flush toilet according to an embodiment includes a bowl part, a rim part, a water spout port, and a water storage part. The bowl part receives waste. The rim part is formed on a top of the bowl part. The water spout port spouts a washing water. The water storage part is formed on a bottom of the bowl part. A first region that is connected to a discharge channel and a second region that is located on a front side of the first region are formed in the water storage part. A main stream of the washing water that is spouted from the water spout port along the rim part swirls on the bowl part and flows into the first region.

A flush toilet according to an embodiment includes a bowl part, a rim part, a water spout port, and a water storage part. The bowl part receives waste. The rim part is formed on a top of the bowl part. The water spout port spouts a washing water. The water storage part is formed on a bottom of the bowl part. A first region that is connected to a discharge channel and a second region that is located on a front side of the first region are formed in the water storage part. A main stream of the washing water that is spouted from the water spout port along the rim part swirls on the bowl part and flows into the first region.

A flush toilet according to an embodiment includes a bowl part and a water storage part. The bowl part receives waste. The water storage part is formed on a bottom of the bowl part and stores a stored water. The water storage part includes a front surface part, a back surface part that is formed on a back side of the front surface part, and a pair of side surface parts that are formed between the front surface part and the back surface part. On at least one side surface part in the pair of side surface parts, a convex surface that protrudes toward another side surface part is formed.

A flush toilet according to an embodiment includes a bowl part and a water storage part. The bowl part receives waste. The water storage part is formed on a bottom of the bowl part and stores a stored water. The water storage part includes a front surface part, a back surface part that is formed on a back side of the front surface part, and a pair of side surface parts that are formed between the front surface part and the back surface part. On at least one side surface part in the pair of side surface parts, a convex surface that protrudes toward another side surface part is formed.

A flush toilet according to an embodiment includes a bowl part, a rim part, and a water spout port. The bowl part receives waste. The rim part is formed on a top of the bowl part. The water spout port spouts a washing water along the rim part. A height of a bottom surface wall that forms a passing water channel where the washing water flows along the rim part increases from an end part on a side of the water spout port toward a front end of the bowl part.

A flush toilet according to an embodiment includes a bowl part, a rim part, and a water spout port. The bowl part receives waste. The rim part is formed on a top of the bowl part. The water spout port spouts a washing water along the rim part. A height of a bottom surface wall that forms a passing water channel where the washing water flows along the rim part increases from an end part on a side of the water spout port toward a front end of the bowl part.

A flush water tank apparatus supplying flush water to a flush toilet by using electrical power generated in the flush water tank apparatus, and a flush toilet apparatus including the flush water tank apparatus are provided. The flush water tank apparatus includes a discharge valve hydraulic drive portion, a discharge control device, an electromagnetic valve, a branching portion causing supplied tap water to flow into the discharge control device and into the water supply valve respectively, and a generator generating electrical power to operate the electromagnetic valve. The generator is provided on a water conduit in a downstream side of the branching portion, and on the water conduit in an upstream side of the water supply valve or in a downstream side of the water supply valve.

Toilet flushing systems installed in a toilet reservoir. A toilet reservoir stores a fluid that pours into a toilet bowl for carrying waste away from a toilet. Exemplary toilet flushing systems may include a flush sleeve having a sleeve bottom and sleeve top. The exemplary sleeve bottom may connect to a bottom of the toilet reservoir around a reservoir drain. The flush sleeve may be capable of being raised in a raised orientation such that the sleeve top is above the fluid in the toilet reservoir to prevent the fluid from entering the reservoir drain. Exemplary toilet flushing systems may include a flush sleeve actuator that lowers the sleeve top of the flush sleeve below a fluid level in the toilet reservoir to allow the fluid to flow through the flush sleeve into the reservoir drain.

Disclosed is a flush toilet including: a bowl portion having a waste-receiving surface and a rim; a drain passage; a rim spout section provided in the rim; and a water-conducting passage configured to supply the flush water to the rim spout section. The bowl portion has a front region and a rear region, and the rim spout section includes: a rim water passage formed inside the rim; and the rim spout port formed at a downstream end of the rim water passage. The rim water passage is provided to extend from either one of right and left parts of the rim to the remaining one of the right and left parts of the rim, via a front end of the rim. Further, the rim water passage has, in the front region of the bowl portion, a cross-sectional area constant zone.

Disclosed is a flush toilet including: a bowl portion having a waste-receiving surface and a rim; a drain passage; a rim spout section provided in the rim; and a water-conducting passage configured to supply the flush water to the rim spout section. The bowl portion has a front region and a rear region, and the rim spout section includes: a rim water passage formed inside the rim; and the rim spout port formed at a downstream end of the rim water passage. The rim water passage is provided to extend from either one of right and left parts of the rim to the remaining one of the right and left parts of the rim, via a front end of the rim. Further, the rim water passage has, in the front region of the bowl portion, a cross-sectional area constant zone.