Abstract: A fan drive circuit 1 for a heat pump device is provided. The heat pump device blows air heat exchanged by a heat exchanger using a mildly-flammable or flammable refrigerant having a specific gravity greater than that of air from a blowout port using a fan. The fan drive circuit 1 is equipped with a forced operation circuit configured to operate the fan in the event that it is undetectable that a protection device for preventing a leaked refrigerant from the heat pump device from reaching a combustible density is connected to the heat pump device.

Abstract: A fan drive circuit 1 for a heat pump device is provided. The heat pump device blows air heat exchanged by a heat exchanger using a mildly-flammable or flammable refrigerant having a specific gravity greater than that of air from a blowout port using a fan. The fan drive circuit 1 is equipped with a forced operation circuit configured to operate the fan in the event that it is undetectable that a protection device for preventing a leaked refrigerant from the heat pump device from reaching a combustible density is connected to the heat pump device.

Abstract: The present invention provides a heterocyclic amide compound of Formula (1), and an agricultural chemical containing it, particularly a herbicide: in which Q is an aromatic heterocycle of any one of Q-1 to Q-5, W is an aromatic heterocycle of W-1, W-2, or W-3, X is an oxygen atom, etc., R1a is a hydrogen atom, a halogen atom, or C1-6 alkyl, etc., R1b is a hydrogen atom, R1c is C1-6 alkyl, R2a is a halogen atom, or C1-6 alkyl, etc., R2c is C1-6 haloalkyl, R3 is a hydrogen atom, etc., R4a, R4b, R4c and R4d are each independently a hydrogen atom, or C1-6 alkyl, etc., R5a, R5b and R5c are each independently a hydrogen atom, or C1-6 alkyl, etc., and n is an integer of 0, 1, 2 or 3.

Abstract: The present invention provides a heterocyclic amide compound of Formula (1), and an agricultural chemical containing it, particularly a herbicide: in which Q is an aromatic heterocycle of any one of Q-1 to Q-5, W is an aromatic heterocycle of W-1, W-2, or W-3, X is an oxygen atom, etc., R1a is a hydrogen atom, a halogen atom, or C1-6 alkyl, etc., R1b is a hydrogen atom, R1c is C1-6 alkyl, R2a is a halogen atom, or C1-6 alkyl, etc., R2c is C1-6 haloalkyl, R3 is a hydrogen atom, etc., R4a, R4b, R4c and R4d are each independently a hydrogen atom, or C1-6 alkyl, etc., R5a, R5b and R5c are each independently a hydrogen atom, or C1-6 alkyl, etc., and n is an integer of 0, 1, 2 or 3.

Abstract: There is provided a novel pest control agent, particularly an insecticide or miticide. A substituted isoxazoline compound of General Formula (1): where A1, A2 and A3 independently are CH or N, etc., X1, X2 and X3 are independently are H, a halogen atom, etc., Y1 is H, etc., R1 is —C(O)R1a, —C(S)R1a, R1a is —C(R9)(R9a)—S(O)rR10, —C(R9)(R9a)—S(O)t(R10)?NR11, etc., R2 is H, etc., R3 is CF3, CClF2, etc., R4 is H, etc., R9 is H, etc., R9a is H, etc., R10 is C1-2 alkyl, etc., R11 is H, etc., r is an integer of 0-2, t is an integer of 0 or 1; and a pest control agent comprising the compound or the salt thereof.

Abstract: A pesticide, particularly an insecticide or an acaricide, including a substituted isoxazoline compound of formula (1) or a salt thereof: wherein A1, A2 and A3 independently of one another are carbon atom or nitrogen atom, G is benzene ring, etc., L is —N(R2c)—, or —CH(R2a)N(R2c)—, etc., X is halogen atom, C1-C6 haloalkyl, etc., Y is halogen atom, C1-C6alkyl, etc., R1 is —C(O)R1a, —C(O)OR1a, —C(O)NHR1a, etc., R2 is hydrogen atom, C1-C6haloalkyl, —C1-C4alkoxy C1-C4alkyl, cyano C1-C6alkyl, C3-C6alkenyl, C3-C6alkynyl, —C(O)R15, —C(O)OR15, etc., R3 is C1-C6haloalkyl, etc., m is an integer of 0 to 5, n is an integer of 0 to 4. The pesticide containing these compounds.

Abstract: A pesticide, particularly an insecticide or an acaricide, including a substituted isoxazoline compound of formula (1) or a salt thereof: wherein A1, A2 and A3 independently of one another are carbon atom or nitrogen atom, G is benzene ring, etc., L is —N(R2c)—, or —CH(R2a)N(R2c)—, etc., X is halogen atom, C1-C6 haloalkyl, etc., Y is halogen atom, C1-C6alkyl, etc., R1 is —C(O)R1a, —C(O)OR1a, —C(O)NHR1a, etc., R2 is hydrogen atom, C1-C6haloalkyl, —C1-C4alkoxy C1-C4alkyl, cyano C1-C6alkyl, C3-C6alkenyl, C3-C6alkynyl, —C(O)R15, —C(O)OR15, etc., R3 is C1-C6haloalkyl, etc., m is an integer of 0 to 5, n is an integer of 0 to 4. The pesticide containing these compounds.

Abstract: There is provided a novel pesticide, particularly an insecticide or an acaricide. A substituted isoxazoline compound of formula (1) or a salt thereof: wherein A1, A2 and A3 independently of one another are carbon atom or nitrogen atom, G is benzene ring, etc., L is —CH2—, —C(CH3)—, —CH(CN)—, etc., X is halogen atom, C1-C6haloalkyl, etc., Y is halogen atom, C1-C6alkyl, etc., R1 is —C(O)R1a, —C(O)OR1a, —C(O)NHR1a, etc., R2 is hydrogen atom, C1-C6haloalkyl, —C1-C4alkoxy C1-C4alkyl, cyano C1-C6alkyl, C3-C6alkenyl, C3-C6alkynyl, —C(O)R15, —C(O)OR15, etc., R3 is C1-C6haloalkyl, etc., m is an integer of 0 to 5, n is an integer of 0 to 4. The pesticide containing these compounds.

Abstract: There is provided a novel pest control agent, particularly an insecticide or miticide. A substituted isoxazoline compound of General Formula (1): where A1, A2 and A3 independently are CH or N, etc., X1, X2 and X3 are independently are H, a halogen atom, etc., Y1 is H, etc., R1 is —C(O)R1a, —C(S)R1a, R1a is —C(R9)(R9a)—S(O)rR10, —C(R9)(R9a)—S(O)t(R10)?NR11, etc., R2 is H, etc., R3 is CF3, CClF2, etc., R4 is H, etc., R9 is H, etc., R9a is H, etc., R10 is C1-2 alkyl, etc., R11 is H, etc., r is an integer of 0-2, t is an integer of 0 or 1; and a pest control agent comprising the compound or the salt thereof.

Abstract: A drain pump is provided that reduces the operating noise when the head is low. The drain pump has a pump casing, and an impeller. The pump casing has a drain inlet for sucking in drain water at a lower end part and a drain outlet for discharging drain water at a side part. The impeller has a shaft part disposed extending in a vertical direction inside the pump casing, a main blade disposed on the outer circumferential side of the shaft part, an auxiliary blade disposed on the lower side of the main blade, and a disc shaped dish part disposed between the main blade and the auxiliary blade. The dish part has an annular partition part extending upward from the outer circumferential edge part of the main blade, which is disposed at a position lower than the upper end part of the partition part.

Abstract: There is provided a novel pesticide, particularly an insecticide or an acaricide. A substituted isoxazoline compound of formula (1) or a salt thereof: wherein A1, A2 and A3 independently of one another are carbon atom or nitrogen atom, G is benzene ring, etc., L is —CH2—, —C(CH3)—, —CH(CN)—, etc., X is halogen atom, C1-C6haloalkyl, etc., Y is halogen atom, C1-C6alkyl, etc., R1 is —C(O)R1a, —C(O)OR1a, —C(O)NHR1a, etc., R2 is hydrogen atom, C1-C6haloalkyl, —C1-C4alkoxy C1-C4alkyl, cyano C1-C6alkyl, C3-C6alkenyl, C3-C6alkynyl, —C(O)R15, —C(O)OR15, etc., R3 is C1-C6haloalkyl, etc., m is an integer of 0 to 5, n is an integer of 0 to 4. The pesticide containing these compounds.

Abstract: A drain pump is provided that reduces the operating noise when the head is low. The drain pump has a pump casing, and an impeller. The pump casing has a drain inlet for sucking in drain water at a lower end part and a drain outlet for discharging drain water at a side part. The impeller has a shaft part disposed extending in a vertical direction inside the pump casing, a main blade disposed on the outer circumferential side of the shaft part, an auxiliary blade disposed on the lower side of the main blade, and a disc shaped dish part disposed between the main blade and the auxiliary blade. The dish part has an annular partition part extending upward from the outer circumferential edge part of the main blade, which is disposed at a position lower than the upper end part of the partition part.

Abstract: A drain pump is provided that reduces the operating noise when the head is low. The drain pump has a pump casing, and an impeller. The pump casing has a drain inlet for sucking in drain water at a lower end part and a drain outlet for discharging drain water at a side part. The impeller has a shaft part extending in a vertical direction inside the pump casing, a main blade disposed on the outer circumferential side of the shaft part, an auxiliary blade disposed on the lower side of the main blade, and a disc shaped dish part disposed between the main blade and the auxiliary blade. The dish part has an annular partition part extending upward from the outer circumferential edge part of the main blade, which is disposed at a position lower than the upper end part of the partition part.

Abstract: An exhaust sound controlling method including reducing a flow rate of exhaust gas that passes through an exhaust path, to a first flow rate in accordance with increase in engine speed in a first engine speed region, and increasing the flow rate of exhaust gas to a second flow rate in accordance with increase in engine speed in a second engine speed region higher in engine speed than the first engine speed region. An exhaust sound controlling apparatus including a baffle plate and a valve that is operated to open a communication passage that communicates upstream and downstream sides of the baffle plate in an engine starting region, close the communication passage in an idling region and a low engine speed region, and open the communication passage and increase an opening of the valve as the engine speed rises in a high engine speed region.

Abstract: A drain pump is provided that reduces the operating noise when the head is low. The drain pump has a pump casing, and an impeller. The pump casing has a drain inlet for sucking in drain water at a lower end part and a drain outlet for discharging drain water at a side part. The impeller has a shaft part extending in a vertical direction inside the pump casing, a main blade disposed on the outer circumferential side of the shaft parts, an auxiliary blade disposed on the lower side of the main blade, and a disc shaped dish part disposed between the main blade and the auxiliary blade. The dish part has an annular partition part extending upward from the outer circumferential edge part of the main blade, which is disposed at a position lower than the upper end part of the partition part.

Abstract: The present invention is to provide a novel agricultural chemical, in particular an insecticide or an acaricide, and relates to a substituted benzanilide compound represented by the formula (1): wherein G represents a ring such as G-7, G-13 and G-71, etc., W1 and W2 each independently represent oxygen atom or sulfur atom, X represents halogen atom, etc., Y represents C1 to C6 alkyl, etc., R1, R2 and R3 each independently represent hydrogen atom, a C1 to C12 alkyl or a C1 to C6 alkylthio(C1 to C6) alkyl, etc., R4, R5, R6a and R6b each independently represent hydrogen atom, a C1 to C6 alkyl, a C1 to C6 haloalkyl or phenyl which may be substituted by (Z2)p1, etc., R6i, R6j and R6k each independently represent hydrogen atom or halogen atom, etc., Z2 represents halogen atom, a C1 to C6 haloalkoxy or a C1 to C6 alkylsulfonyl, etc., m and n each independently represent integer of 0 to 4, and p1 represents integer of 1 to 5, or a salt thereof, and a noxious organism controlling agent containing these.

Abstract: An expansion chamber, and first and second volume chambers on either side of said expansion chamber, are formed inside a muffler housing. Engine exhaust is led by an inlet tube to the first volume chamber, and an opening facing the expansion chamber is formed in an intermediate part of the inlet tube. Exhaust in the second volume chamber is discharged outside by a tail tube, and an opening is formed facing the expansion chamber in an intermediate part of the tail tube. A valve is provided for leading exhaust from the first volume chamber to the second volume chamber according to a pressure difference between the chambers. This forms two exhaust flowpaths. A resonance system with two degrees of freedom is thereby formed with respect to exhaust discharged via the two openings and the expansion chamber, and a high noise silencing efficiency is obtained.

Abstract: The inner area of a muffler of an engine is partitioned into an expansion chamber, a first volume chamber and a second volume chamber. An inlet tube and the first volume chamber are connected by a first passage. The first volume chamber and a second volume chamber are connected by a second passage, and the second volume chamber and expansion chamber are connected by a third passage. The flow of exhaust gas reaching the expansion chamber via the first passage, second passage and third passage is blocked by a valve which opens according to a pressure rise of the exhaust gas. One of the two acoustic paths formed when the valve is open functions as a resonator having two degrees of freedom relative to the other path so that a high muffling effect is obtained.

Abstract: A first and second noise suppressing mechanism are provided inside the muffler. Each mechanism is provided with a discharge pipe for discharging exhaust gas to outside the muffler. The first noise suppressing mechanism reduces exhaust noise in the low engine speed region. The second noise suppressing mechanism reduces noise in the medium and high engine speed regions. A valve is provided that connects the first noise suppressing mechanism and second noise suppressing mechanism according to the engine exhaust pressure. In the low speed region, the valve is closed and exhaust gas is discharged via the first noise suppressing mechanism where mainly low frequency noise is eliminated. In the medium and high speed regions, the valve is opened and exhaust gas is also discharged via the second noise suppressing mechanism where high frequency noise specific in these regions is also eliminated.

Abstract: A plurality of chambers are partitioned in a muffler by a baffle board. The muffler is provided with an exhaust gas passage for discharging exhaust gas outside the muffler via these chambers and a valve that bypasses a part of the exhaust passage. This valve opens according to the exhaust gas pressure. Also provided are a mechanism for pushing the valve in a closing direction, and a mechanism for damping the shock when the valve closes. Thus, valve closing noise is suppressed, and exhaust gas noise is further suppressed.