Abstract:
A fuel feed system capable of feeding a fuel to fuel injection valves at a fuel pressure with improved stability is provided. A fuel feed system for an internal combustion engine including a fuel tank and a low-pressure pump for feeding the fuel in the fuel tank to fuel injection valves, is provided with a diaphragm type damper having a wave-shape cross section at a position in contact with the fuel. Also, in a high-pressure fuel feed pump including a pressurizing chamber for pressurizing the fuel, a plunger for pumping the fuel within the pressurizing chamber, an intake valve provided at a fuel inlet of the pressurizing chamber, a discharge valve provided at a fuel outlet of the pressurizing chamber, and a low-pressure chamber provided in an upstream of the intake valve, a mechanism for reducing fuel pressure pulsation is disposed in a space of the low-pressure chamber provided in the upstream of the intake valve, and a fuel pressure sensor for measuring the fuel pressure is mounted near the mechanism for reducing fuel pressure pulsation.
Abstract:
A radio communication system such as a mobile communication system is provided which establishes communications between a main transmission unit and sub-transmission units. The main transmission unit transmits to the sub-transmission units simultaneously a frame including a data slot to which paging data on a call made by one of the sub-transmission units to another is added and a preamble to which a bit stream to be subjected to double spreading is added for informing the sub-transmission units of a call request. Each of the sub-transmission units includes a reproducing circuit reproducing the paging data of the received frame. The reproducing circuit is allowed to operate only when the preamble of the received frame indicates the presence of the paging data.
Abstract:
Novel cephem compounds are provided which are useful for synthesizing cephamycin compounds useful as antibacterial agents. The novel compounds have the formula (I): ##STR1## wherein R.sup.1 represents a lower alkyl group and R.sup.2 represents an amino group which may be protected, in the salt thereof.
Abstract:
A method and apparatus utilizing a core is located at a central portion of a molten metal storing portion in a vertical semi-continuous mold. The molten metal is poured into the molten metal storing portion, and casting takes place with the inner diameter of a solidified distal portion of the molten metal being controlled by a distal portion of the core. This approach provides a reliable method for the manufacture of high-quality hollow billets which are free from internal defects.
Abstract:
It is possible to obtain an engine starting device in which, at the time of initial engagement of a first pinion gear and an engine starting gear, in a case where the first pinion gear collides with the engine starting gear, the first pinion gear is inclined with respect to the second pinion gear, a void having a predetermined size for expanding the inclined state is formed between a surface of an end surface portion of the first pinion gear on the side of an end surface portion of the second pinion gear, and a surface of an end surface portion of the second pinion gear on the side of the end surface portion of the first pinion gear, even in a case where any one of the rotation speed of the engine starting gear and the rotation speed of the pinion gear is larger than the other, rotation synchronization of the engine starting gear and the pinion gear and phase focusing of the teeth between the engine starting gear and the pinion gear is further rapidly and further reliably performed at the time when the engine starting gear and the pinion gear is abutted to each other, noise is decreased, and shortening of the life due to abrasion can be suppressed.
Abstract:
An engine startup device is provided having a helical-spline-engaging part where an output shaft (5) and a moving body (3) are coupled with each other, wherein a notch (37b, 38b) is formed on a power-transmitting-side tooth surface (37a, 38a) of at least either one of the output shaft and the moving body, and an angle formed by the notch with respect to a shaft direction is made smaller than the lead angle of a helical spline.
Abstract:
A high-pressure fuel supply pump includes a discharge valve, which is a non-return valve between a pressurizing chamber and a discharge port. The discharge valve includes a valve body housing, a discharge valve spring, a valve body and a seat member. The discharge valve is a flat valve. When the valve is opened, a flow of fuel moving from the pressurizing chamber and axially colliding with the valve body is radially distributed in the radial direction of the valve body to become a flow directly moving the discharge ports and a flow colliding with an inner wall of the valve body housing before moving toward the discharge ports and then in a circumferential direction of the valve body.
Abstract:
A stick-type cosmetic includes a solid wax whose content is more than or equal to 5% by weight and less than or equal to 8% by weight, wherein hardness of the stick-type cosmetic is more than or equal to 0.1 and less than or equal to 0.4, and gloss of the stick-type cosmetic is more than or equal to 30.
Abstract:
Stick-shaped solid cosmetic 10 comprises a wax with a melting point of 45° C. or higher and liquid oil, wherein the hardness of top portion 16 is 0.07 N to 0.38 N and the hardness of boundary portion 20, which is a border between a retained portion in inner holder 12 and a portion outside of the inner holder 12, is 0.03 N to 0.31 N higher than the hardness of the top portion, and wherein the hardness gradually increases from the top portion 16 to the boundary portion 20. Thus, the stick-shaped solid cosmetic 10 has smooth spreadability and excellent product strength.
Abstract:
A high-pressure fuel supply pump mounted with a discharge valve that can reduce an influence of noise caused by a valve body-circumferential flow and a discharge valve unit used therein. The high-pressure fuel supply pump includes a discharge valve (8) which is a non-return valve between a pressurizing chamber (11) and a discharge port (13). The discharge valve (8) includes a valve body housing (8d), a discharge valve spring (8c), a valve body (8b) and a seat member (8a). The discharge valve (8) is a flat valve. When the valve is opened, a flow of fuel moving from the pressurizing chamber and axially colliding with the valve body is radially distributed in the radial direction of the valve body to become a flow directly moving the discharge ports and a flow colliding with an inner wall of the valve body housing before moving toward the discharge ports and then in a circumferential direction of the valve body. The discharge valve (8) is provided with a liquid damper chamber defined between an outer circumference of the seat member (8a) and an outer circumference of the valve body (8d) and an inner circumference of the valve body housing (8d) to face the flow in the circumferential direction. The liquid damper chamber includes first, second and third tubular passages (503A, 503B, 503C).