Title: Gas labyrinth carburetor throttle shaft seal

Abstract: In an carburetor where a shaft is positioned within a bearing section and there is no lubricant, such as oil or water, used between the shaft and bearing section, a flow of pressurized air is directed through a passageway into the bearing section and then into a slot which extends in the circumferential direction so that air can be directed axially between the shaft and the bearing section. The flow of air prevents the entry of any alien substances, such as dust or moisture, into the space between the shaft and the bearing section.

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Inventors: Nohira, Hidetaka (Susono, JA)

Application Number: 370208
Filing Date: 1973-06-15
Publication_date: 1976-08-17
Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha (JA)
Primary Class(es): 261/1 277/431, 384/91
Other Classes:
US Patent Ref:

2230311	Feb, 1941	Seymour	123/119.
2313258	Mar, 1943	Olson	123/119.
2891528	Jun, 1959	Dolza et al.	123/119.
3018766	Jan, 1962	Francis	123/119.
3030744	Apr, 1962	Mueller	308/9.
3321254	May, 1967	Dock	308/9.
3447519	Jun, 1969	Marcik et al.	123/119.
3586967	Jun, 1971	Peyrot et al.	308/9.

Other Refs: 802,861

Oct, 1958	UK

Primary Examiner: Spar, Robert J.
Assistant Examiner: Beltran, Howard
Attorney: Toren, McGeady and Stanger