Nippon Soda Co., Ltd.

Eagle Industry Co., Ltd.

Neturen Co., Ltd.

Hiroki Inoue

Yuta Negishi

Takashi Horino

Shiro Tsubokura

Koichi Kutose

Takeshi Hosoe

Yuki Maetani

Minori Onuma

Hiroshi Suzuki

Yuichiro Tokunaga

Hideyuki Inoue

Yoshiaki Takigahira

Hikaru Katori

Yoshikazu Ito

Nobuo Nakahara

Takashi Kitayama

Shinichi Kobayashi

Yuzuru Sakata

Sayaka Miyazaki

Ryosuke Uchiyama

Satoshi Nishimura

Tadatsugu Imura

Hiroaki Kinoshita

Wataru Kimura

Fumiaki Ikuta

Tomomi Kobayashi

Iwa Ou

Yasushi Shibata

Kaoru Noda

Hirohito Oooka

Hidehiro Yasutake

Shogo Fukuda

Akira Terajima

Tsutomu Imagawa

Yusuke Fukushima

Jun Iwata

Sayaka Kosugi

Yuka Nakamura

Takuya Kamada

Takaaki Teranishi

Shinya Uesusuki

Youhei Munei

Tetsuya Tanaka

Shinya Koubori

A sliding component includes a plurality of dynamic pressure generation mechanisms circumferentially arranged on a sliding surface of the sliding component. Each dynamic pressure generation mechanism includes an introduction groove portion communicating with a sealing target fluid side through an opening portion of the introduction groove portion and a dynamic pressure generation groove portion communicating with the introduction groove portion and extending in a circumferential direction in which the sliding component is relatively rotated with respect to a mating sliding component. The introduction groove portion is partially defined by a boundary wall positioned between the introduction groove portion and the dynamic pressure generation groove portion. The boundary wall has an inclined surface where at least a portion of the boundary wall positioned on a side of the opening portion extends toward the sealing target fluid side and inclined to a side of the dynamic pressure generation groove portion.

Sliding component

An annular sliding component includes a sliding surface provided with a plurality of fluid introduction grooves communicating with a space on the side of a sealing target fluid and introducing the sealing target fluid thereinto and a plurality of inclined grooves extending from a leakage side toward the sealing target fluid and generating a dynamic pressure and the sliding surface of the sliding component is provided with a reverse inclined groove which is provided on the side of the sealing target fluid of the inclined groove, extends in a reverse direction with respect to the inclined groove, and generates a dynamic pressure.

An annular sliding component includes a sliding surface provided with a plurality of fluid introduction grooves communicating with a space on the side of a sealing target fluid and introducing the sealing target fluid and a plurality of inclined grooves extending from a leakage side toward the sealing target fluid and generating a dynamic pressure and the sliding surface of the sliding component is provided with at least a concave portion disposed between adjacent two of the fluid introduction grooves in the circumferential direction.

A heating coil includes a plurality of loop portions disposed coaxially along an axis, a first lead portion and a second lead portion which electrically connect to a power source, and a connection portion which connects the plurality of loop portions, the first lead portion, and the second lead portion in series.

Heating coil and heating method

A sliding surface of the sliding component is provided with a communication groove having a start point communicating with a sealed fluid side in a radial direction, a storage groove communicating with the communication groove, and a plurality of dynamic pressure generation grooves generating a dynamic pressure at end points thereof upon a run of the rotating machine and the dynamic pressure generation grooves are located on a side of the sealed fluid side space with respect to the storage groove in the radial direction.

Sliding components

A sliding component having excellent lubricity and a high recovery rate of a sealed fluid is provided. In a mechanical seal as a sliding component in which a plurality of spiral grooves serving as a plurality of dynamic pressure generation grooves extending from a low pressure side to a high pressure side are formed on a sliding surface of a stationary seal ring serving as any one sliding member in the mechanical seal, the sliding surface is provided with an annular groove serving as a recessed portion extending in a circumferential direction and opened to the low pressure side and the annular groove communicates with the spiral groove.

A sliding component includes a dynamic pressure generation groove configured for generating dynamic pressure on a sliding surface, which groove includes an introduction port formed in one end side of the groove in a circumferential direction and which is open to a sealing target fluid H side, a throttle portion communicating with the introduction port and having a narrowed flow path, and a lead-out port formed on the other end side of the groove, which communicates with the throttle portion and which is open to the sealing target fluid side.

Rectifier

In an exemplary embodiment of a sliding component, a sliding face S is provided with a first fluid-side negative pressure generation mechanismincluding a first negative pressure generation groove, and is provided with a second fluid-side negative pressure generation mechanismincluding second negative pressure generation grooveslocated on the second-fluid side of the first fluid-side negative pressure generation mechanism, and is further provided with a dynamic pressure generation mechanismincluding dynamic pressure generation grooveson at least one of the first-fluid side and the second-fluid side of the first fluid-side negative pressure generation mechanismand the second fluid-side negative pressure generation mechanism, and the first negative pressure generation grooveis isolated from the second-fluid side by a land R, and the second negative pressure generation groovesare isolated from the first-fluid side by a land R.

In an exemplary embodiment, a sliding component includes a pair of sliding partsandsliding relative to each other, with a high-pressure gas present on one side of the pair of sliding partsandand a low-pressure liquid on the other side. At least the sliding parthas a sliding face S provided with positive pressure generation mechanismseach having a positive pressure generation groove, and provided with an annular deep grooveon the high-pressure gas side. The annular deep grooveis isolated from the high-pressure gas side by a land R, and is connected to the low-pressure liquid side through radial deep grooves. The sliding component is capable of fulfilling both conflicting conditions of sealing and lubrication, with a gas on the high-pressure fluid side and a liquid on the low-pressure fluid side.

The present invention provides a compound represented by formula (I) (in the formula, Rto Reach represent a hydrogen atom, an unsubstituted or G-substituted C1-6 alkyl group or the like, A represents an oxygen atom or the like, Cy represents a C6-10 aryl group or the like), an N-oxide compound thereof, a tautomer or salt thereof. The present invention also provides an agricultural and horticultural fungicide, harmful organism control agent and insecticidal/acaricidal agent containing at least one compound selected from the group consisting of a compound represented by formula (I), a tautomer and salt thereof, as an active ingredient. 

Pyridine compound and use thereof

A direct resistance heating simulation method is provided. In this method, a welding region and its peripheral region of steel sheets to be welded by a pair of electrodes are divided into a plurality of elements. A coupled analysis is performed such that a temperature, a metal structure, stress and strain at each element are determine in a mutually associated manner based on Joule loss obtained through a current analysis and a magnetic field analysis for each element. The coupled analysis is repeated to predict an effect of one or more parameters, including at least one of a frequency, a magnitude and an application time of electric current to be applied to the electrodes, a cooling time, a pressure applied from the electrodes to the steel sheets and a shape of the electrodes, on welding quality after a post-heating by direct resistance heating and to improve weld strength.

Direct resistance heating simulation method

Growing community of inventors

Takaoka, Japan

Hiroki Inoue