Abstract: An oil pan structure (1) includes a lower structure (2) fixed to a lower portion of an engine block, a main oil pan (3) provided under an engine block with the lower structure being between the main oil pan and the engine block, a sub oil pan (5) that is provided in the main oil pan (3) and forms a first chamber (6) and a second chamber (7) inside the main oil pan (3). The sub oil pan (5) is separated into an upper body (5a) and a lower body (5b). The upper body (5a) is formed together with the lower structure (2) by injection molding.

Abstract: A vehicle control system 10 includes a water pump 23 with an electromagnetic clutch, an oil relief device 25, an OCV 26, a water temperature sensor 31, and an ECU 11. The ECU 11 causes the electromagnetic clutch of the water pump 23 to be disengaged on the basis of the detection result detected by the water temperature sensor 31, and stops the coolant circulation. The ECU 11 instructs the OCV 26 to adjust the lubricant pressure to low by an oil relief device 25. The ECU 11 determines whether or not the adjustment of the lubricant pressure to low by the oil relief device 25 is stopped on the basis of the detection result detected by the water temperature sensor 31 when the engagement of the electromagnetic clutch of the water pump 23 continues for a given period.

Abstract: An oil pan is provided with an oil pan separator that partitions a first chamber that communicates with a moving part inside a cylinder block and a second chamber outside the first chamber. A communicating hole is provided to a bottom panel of the oil pan separator. The communicating hole is shielded from a strainer.

Abstract: In the cylinder block of an engine including a heat storage apparatus, a water jacket is formed between a cylinder bore wall that forms a cylinder bore and a cylinder block outer wall. An actuator is installed on the cylinder block outer wall. A container is housed in the water jacket. A coolant temperature sensor is installed on the upper portion of the container. An ECU determines the state of a heat storage agent in the container and the state of the container, based on information on the temperature of coolant determined by the coolant temperature sensor.

Abstract: An oil pan is provided with an oil pan separator that partitions a first chamber that communicates with a moving part inside a cylinder block and a second chamber outside the first chamber. A communicating hole is provided to a bottom panel of the oil pan separator. The communicating hole is shielded from a strainer.

Abstract: An oil pan is provided with an oil pan separator that partitions a first chamber that communicates with a moving part inside a cylinder block and a second chamber outside the first chamber. A communicating hole is provided to a bottom panel of the oil pan separator. The communicating hole is shielded from a strainer.

Abstract: A heat accumulator (1) is formed by connecting a first container (4) and a second container (5) using a spring (6). The first container (4) has a wall-shaped inner side wall that corresponds to the shape of a cylinder bore wall (7). Provided on this inner side wall is a flexible structural part (8). The flexible structural part (8) is formed of highly elastic resin. The second container (5) has a similar structure. A heat storage medium within the first container (4) and the second container (5) absorbs heat, which generates a change of phase from a solid to a liquid. When this happens, the volume of the heat storage medium increases. The increase in the heat storage medium projects the flexible structural part (8), and separates the first container (4) and the second container (5) from the cylinder bore wall (7).

Abstract: An oil pan separator 132 is disposed so as to divide a space within an oil pan 130 into a first chamber 30a and a second chamber 30b. The oil pan separator 132 has a protrusion 132b formed at a low position in such a manner that a portion of the first chamber 30a protrudes into the second chamber 30b. A protrusion upper-plate 132b1, which serves as an upper end portion of the protrusion 132b, is provided with an oil feed valve 138, which is a one-way valve, for allowing substantially only outflow of oil from the first chamber 30a to the second chamber 30b.

Abstract: A vehicle control system 10 includes a water pump 23 with an electromagnetic clutch, an oil relief device 25, an OCV 26, a water temperature sensor 31, and an ECU 11. The ECU 11 causes the electromagnetic clutch of the water pump 23 to be disengaged on the basis of the detection result detected by the water temperature sensor 31, and stops the coolant circulation. The ECU 11 instructs the OCV 26 to adjust the lubricant pressure to low by an oil relief device 25. The ECU 11 determines whether or not the adjustment of the lubricant pressure to low by the oil relief device 25 is stopped on the basis of the detection result detected by the water temperature sensor 31 when the engagement of the electromagnetic clutch of the water pump 23 continues for a given period.

Abstract: An oil temperature sensor is externally mounted on a side plate of an oil pan cover that constitutes an external cover for an oil pan apparatus. The oil temperature sensor can output a signal in accordance with the oil temperature prevailing near a thermostat valve apparatus in a second chamber. If the second chamber oil temperature rises immediately after startup of an engine, a CPU judges that an open valve failure has occurred, that is, the thermostat valve apparatus is stuck open. If the oil temperature of the second chamber is not raised when an adequate amount of time has elapsed after the end of a warm-up operation, the CPU judges that a closed valve failure has occurred, that is, the thermostat valve apparatus is stuck closed.

Abstract: A mounting structure for a heat accumulation tank is provided with an elastic member that wraps around a tank main body, and a heat accumulation tank mounting member which wraps around the outer peripheral surface of the elastic member and holds the tank main body by being tightened in the circumferential direction, and which attaches to a receiving member. The elastic member is a molded part. The length of the elastic member is shorter than length of the circumference of the outer peripheral surface of the tank main body. The heat accumulation tank mounting member includes a shift inhibiting portion which inhibits an upward shift of the tank main body. The outside diameter of the tank main body becomes increasingly wider in the upward direction.

Abstract: A hydraulic control apparatus (1) is provided with an oil pump (4) that draws oil from an oil pan (3) due to the rotation of the crankshaft, a piston jet (6) that open when the hydraulic pressure of the oil that has been drawn from this oil pump (4) attains a valve opening pressure Qa and injects oil toward a piston through an oil injection path (5), a relief valve (8) that is disposed on an oil return path (7) and opens when the hydraulic pressure of the oil that has been drawn by the oil pump (4) has attained a valve opening pressure Qb, and a switching valve (9) that is disposed on the oil return path (7). The valve opening pressure Qb is set to a pressure that is lower than that of the valve opening pressure Qa.

Abstract: An oil pan structure (1) includes a lower structure (2) fixed to a lower portion of an engine block, a main oil pan (3) provided under an engine block with the lower structure being between the main oil pan and the engine block, a sub oil pan (5) that is provided in the main oil pan (3) and forms a first chamber (6) and a second chamber (7) inside the main oil pan (3). The sub oil pan (5) is separated into an upper body (5a) and a lower body (5b). The upper body (5a) is formed together with the lower structure (2) by injection molding.

Abstract: A dual-chamber oil pan includes an oil pan provided below an engine block, an oil pan separator that is provided within the oil pan and defines a first chamber communicating with the engine block, and a second chamber provided around the first chamber, and a suction port disposed within the first chamber. The first chamber includes a large-capacity portion including a bottom portion of the oil pan separator, and a small-capacity portion located above and integrally formed with the large-capacity portion.

Abstract: An engine cooling apparatus includes a coolant inlet of a block water jacket formed in a cylinder block, wherein coolant is introduced into the block water jacket through the coolant inlet, a flow-directing plate that is disposed in the block water jacket at a position downstream of the coolant inlet, and that directs the coolant, which has been introduced into the block water jacket through the coolant inlet, toward a head water jacket and a control portion that controls inflow of the coolant from the head water jacket into the block water jacket.

Abstract: A hydraulic control apparatus (1) is provided with an oil pump (4) that draws oil from an oil pan (3) due to the rotation of the crankshaft, a piston jet (6) that open when the hydraulic pressure of the oil that has been drawn from this oil pump (4) attains a valve opening pressure Qa and injects oil toward a piston through an oil injection path (5), a relief valve (8) that is disposed on an oil return path (7) and opens when the hydraulic pressure of the oil that has been drawn by the oil pump (4) has attained a valve opening pressure Qb, and a switching valve (9) that is disposed on the oil return path (7). The valve opening pressure Qb is set to a pressure that is lower than that of the valve opening pressure Qa.

Abstract: A heat accumulator (1) is formed by connecting a first container (4) and a second container (5) using a spring (6). The first container (4) has a wall-shaped inner side wall that corresponds to the shape of a cylinder bore wall (7). Provided on this inner side wall is a flexible structural part (8). The flexible structural part (8) is formed of highly elastic resin. The second container (5) has a similar structure. A heat storage medium within the first container (4) and the second container (5) absorbs heat, which generates a change of phase from a solid to a liquid. When this happens, the volume of the heat storage medium increases. The increase in the heat storage medium projects the flexible structural part (8), and separates the first container (4) and the second container (5) from the cylinder bore wall (7).

Abstract: An oil pan (130) comprises an oil pan cover (131) storing oil in an internal space and an oil pan separator (132) positioned in the internal space. The oil pan separator (132) is positioned so as to divide the internal space into a first chamber (30a), which has an oil strainer (41) at its bottom, and a second chamber (30b), which is adjacent to the first chamber (30a). The oil pan separator (132) includes a slope plate (132c) for capturing return oil that flows back from a cylinder block (20a) to an oil pan (130). Part of the captured return oil flows to the second chamber (30b) via a communication hole (132f) that is provided in the slope plate (132c). The remaining captured return oil flows into the first chamber (30a). This ensures that the oil level in the second chamber (30b) is higher than that in the first chamber (30a). Therefore, when a solenoid valve (133) opens at the end of a warm-up operation, the oil in the second chamber (30b) flows into the first chamber (30a).

Abstract: An oil pan separator 132 is disposed so as to divide a space within an oil pan 130 into a first chamber 30a and a second chamber 30b. The oil pan separator 132 has a protrusion 132b formed at a low position in such a manner that a portion of the first chamber 30a protrudes into the second chamber 30b. A protrusion upper-plate 132b1, which serves as an upper end portion of the protrusion 132b, is provided with an oil feed valve 138, which is a one-way valve, for allowing substantially only outflow of oil from the first chamber 30a to the second chamber 30b.

Abstract: An oil pan is provided with an oil pan separator that partitions a first chamber that communicates with a moving part inside a cylinder block and a second chamber outside the first chamber. A communicating hole is provided to a bottom panel of the oil pan separator. The communicating hole is shielded from a strainer.