US4096998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injector
Assignee: WARSZAWSKIE ZAKLADY MECHANICZNE PZL WZM
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Filing: 1976-04-30
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Granted: 1978-06-27
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Expires: 1996-04-30
Abstract
Abstract A fuel injector is clamped by a pressure yoke by means of one or two bolts, the pressure yoke being in the form of an oval flatted ring. The yoke can be manufactured from a pipe or a flat bar. The yoke has a flat pressure surface, whereas the body of the injector has an arched bearing surface. A flange on the nozzle nut or the face of the nut can also serve as the bearing surface for the yoke.
Inventors
- 👤 Eugeniusz Siwak
- 👤 Andrzej Krainski
- 👤 Krzysztof Lendzion
- 👤 Jerzy Wewior
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/14; F16; F16B; F16B2200/00; F16B2200/40; F16B2200/403; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/974; Y10S411/984
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
63 words
A yoke for a fuel injector to be secured in an internal combustion engine, said yoke being an oval shaped ring of uniform cross-section throughout its extent and including a waist portion adapted to embrace an injector and at least one projecting portion extending away from the waist portion and constituted as a loop to engage a fixing bolt to secure said yoke.
Claim 2
Dependent Claim
63 words
A yoke for a fuel injector to be secured in an internal combustion engine, said yoke being an oval shaped ring of uniform cross-section throughout its extent and including a waist portion adapted to embrace an injector and at least one projecting portion extending away from the waist portion and constituted as a loop to engage a fixing bolt to secure said yoke.
Claim 3
Dependent Claim
16 words
A yoke as claimed in claim 1 wherein said yoke is constituted by a flattened pipe.
Claim 4
Dependent Claim
35 words
A yoke as claimed in claim 1 wherein said yoke is constituted by a flat bar having opposite ends which is bent to the oval shape of the ring and having its ends joined together.
Claim 5
Dependent Claim
28 words
A yoke as claimed in claim 1 wherein said waist portion of the ring has opposed flat bearing surfaces for engaging flat surfaces a of the fuel injector.
Claim 6
Dependent Claim
32 words
A yoke as claimed in claim 1 wherein said ring is constituted by elongated material in the form of an annular body deformed to form said waist portion and said projecting portion.
Claim 7
Dependent Claim
18 words
A yoke as claimed in claim 1 wherein said ring is constituted by a bent length of material.
Claim 8
Dependent Claim
85 words
The combination of a fuel injector and a yoke by which the injector is adapted for being clamped against a cylinder head, said yoke being an oval shaped ring of uniform cross-section throughout its extent and including a waist portion engaging flats provided on opposed faces of the injector and at least one projecting portion constituted as a loop extending away from the injector, and a fixing bolt engaged in said loop for engaging a cylinder head for clamping the yoke against a cylinder head.
Claim 9
Dependent Claim
85 words
The combination of a fuel injector and a yoke by which the injector is adapted for being clamped against a cylinder head, said yoke being an oval shaped ring of uniform cross-section throughout its extent and including a waist portion engaging flats provided on opposed faces of the injector and at least one projecting portion constituted as a loop extending away from the injector, and a fixing bolt engaged in said loop for engaging a cylinder head for clamping the yoke against a cylinder head.
Claim 10
Dependent Claim
40 words
The combination as claimed in claim 7 in which said waist portion of said yoke has a lower flat pressure bearing surface, said injector having an arched bearing surface in contact with said flat pressure bearing surface of said yoke.
Claim 11
Dependent Claim
24 words
The combination as claimed in claim 7 in which said yoke is mounted on a waist portion at the middle part of the injector.
Claim 12
Dependent Claim
16 words
The combination as claimed in claim 9 comprising means for permanently joining said yoke and injector.
Claim 13
Dependent Claim
23 words
The combination as claimed in claim 7 in which said injector has a bearing surface for the yoke constituted by a nozzle nut.
Claim 14
Dependent Claim
19 words
The combination as claimed in claim 11 in which said flats on the injector are directly above said nut.
Claim 15
Dependent Claim
19 words
A yoke as claimed in claim 7 wherein said ring is constituted by a bent length of flat material.
References Cited (Backward Citations)
US493122A
Cited
US516563A
Cited
US916997A
Cited
GB468629A
Cited
US2388650A
Cited
US2646460A
Cited
DE1010783B
Cited
DE2109727A1
Cited
DE2262570A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |